Multi Tech Systems Modem MT5634ZPX PCI V92 User Manual

 
MultiModemZPX User Guide  
Contents  
Chapter 1: Introduction  
Introduction ............................................................................................................................. 2  
Product Description................................................................................................................ 2  
What Is in Your Modem Package? ....................................................................................... 2  
Chapter 2: Installation  
Introduction ............................................................................................................................. 4  
What You Will Need .............................................................................................................. 4  
Safety Warnings ...................................................................................................................... 4  
Step 1: Install the MultiModemZPX in your Computer ................................................... 5  
Step 2: Make the External Connections ............................................................................... 6  
Line Connection ............................................................................................................... 6  
Phone Connection............................................................................................................ 6  
Microphone Connection ................................................................................................. 7  
Sound Card and Speaker Connections ......................................................................... 7  
Step 3: Install the Modem Driver ......................................................................................... 8  
Windows 95 ...................................................................................................................... 8  
Windows 98/Me .............................................................................................................. 8  
Windows NT 4.0 ............................................................................................................ 11  
Windows 2000 ................................................................................................................ 13  
Step 4: Configure the Modem for Your Country ............................................................. 15  
The Global Wizard Utility ............................................................................................ 15  
AT Commands ............................................................................................................... 15  
Step 5: Install and Configure Your Software .................................................................... 16  
Chapter 3: Operation  
Introduction ........................................................................................................................... 18  
Configuring the Modem ...................................................................................................... 18  
PhoneTools Features ............................................................................................................ 18  
Connecting to the Internet ................................................................................................... 18  
Dial-Up Networking ............................................................................................................ 19  
Sending a Fax ........................................................................................................................ 19  
References .............................................................................................................................. 20  
Chapter 4: AT Commands, S-Registers & Result Codes  
Introduction ........................................................................................................................... 22  
AT Commands ...................................................................................................................... 23  
S-Registers.............................................................................................................................. 40  
Result Codes .......................................................................................................................... 43  
Chapter 5: Remote Configuration  
Introduction ........................................................................................................................... 46  
Basic Procedure ..................................................................................................................... 46  
Setup ....................................................................................................................................... 46  
To Change the Setup Password ................................................................................... 46  
To Change the Remote Escape Character .................................................................. 47  
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Chapter 6: Solving Problems  
Introduction ........................................................................................................................... 49  
The Modem Does Not Respond to Commands ............................................................... 49  
The Modem Cannot Connect When Dialing .................................................................... 50  
The Modem Disconnects While Online ............................................................................. 51  
The Modem Cannot Connect When Answering .............................................................. 52  
File Transfer Is Slower Than It Should Be ......................................................................... 52  
Data Is Being Lost ................................................................................................................. 52  
There Are Garbage Characters on the Monitor ................................................................ 53  
The Modem Doesn’t Work with Caller ID ........................................................................ 53  
Fax and Data Software Can’t Run at the Same Time ...................................................... 53  
The Voice Functions Don’t Work ....................................................................................... 53  
Voice Mail Test............................................................................................................... 54  
Loopback Test ................................................................................................................ 54  
Speakerphone Test ........................................................................................................ 54  
Appendix A: Regulatory Compliance  
FCC Part 68 Telecom ............................................................................................................ 56  
FCC Part 15 ............................................................................................................................ 57  
Fax Branding Statement....................................................................................................... 57  
Canadian Limitations Notice .............................................................................................. 58  
Industry Canada ................................................................................................................... 58  
Protection Against Contact with TNV Circuit.................................................................. 58  
EMC, Safety, and R&TTE Directive Compliance ............................................................. 59  
New Zealand Telecom Warning Notice ............................................................................ 59  
South African Notice ............................................................................................................ 60  
International Modem Restrictions...................................................................................... 60  
Appendix B: Technical Specifications.................................................................................. 61  
Appendix C: Loopback Tests  
Introduction ........................................................................................................................... 63  
Local Analog Loopback Test (V.54 Loop 3) ...................................................................... 63  
Remote Digital Loopback Test (V.54 Loop 2) ................................................................... 64  
Local Digital Loopback Test (V.54 Loop 2) ....................................................................... 65  
Appendix D: Warranty, Service, and Technical Support  
Limited Warranty ................................................................................................................. 67  
Online Warranty Registration............................................................................................. 67  
Service .................................................................................................................................... 67  
U.S. and Canadian Customers..................................................................................... 67  
International Customers (outside U.S.A. and Canada) ........................................... 68  
International Distributors ............................................................................................. 68  
Technical Support ................................................................................................................. 69  
Internet Sites .......................................................................................................................... 69  
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Appendix E: Upgrading the Modem  
Introduction ........................................................................................................................... 70  
Upgrade Overview ............................................................................................................... 70  
Step 1: Identify the Modem Firmware............................................................................... 70  
Step 2: Identify the Current Firmware Version ................................................................ 71  
Step 3: Download the Upgrade File ................................................................................... 71  
Step 4: Extract the Upgrade Files........................................................................................ 71  
Step 5: Document and Clear Your Stored Paramenters .................................................. 71  
Step 6: Upgrade the Modem’s Firmware .......................................................................... 72  
Step 7: Restore Your Parameters ........................................................................................ 72  
Appendix F: Installing Under Linux  
Introduction ........................................................................................................................... 73  
Standard Linux Serial Port Definitions.............................................................................. 73  
Installation ............................................................................................................................. 73  
Setup ....................................................................................................................................... 73  
Using the Terminal Program Minicom to Verify Operation .......................................... 74  
Using the Modem to Call the Internet ............................................................................... 74  
Calling the ISP ....................................................................................................................... 75  
Answering Calls.................................................................................................................... 75  
Appendix G: Installing Under SCO OpenServer  
Introduction ........................................................................................................................... 76  
Installation ............................................................................................................................. 76  
Setup ....................................................................................................................................... 76  
Index....................................................................................................................................................................... 77  
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1
Introduction  
 
MultiModemZPX User Guide  
1 Introduction  
Introduction  
Congratulations on your purchase of the MultiModemZPX. You have acquired one  
of the finest internal V.92 data/fax/voice modems available today from one of the  
worlds oldest modem manufacturers: Multitech Systems, Inc. This user guide will  
help you to install, configure, test, and use your modem.  
Product Description  
The MultiModemZPX is a full-featured internal data/fax/voice modem designed  
for Pentium computers in Windows Plug and PlayTM environments. Its half-length  
card can be plugged into any available PCI slot.  
The MultiModemZPX provides high-speed data transfer and fax capabilities for small  
businesses, telecommuters, and SOHO users. Its compatibility with the new ITU-T V.92  
protocol provides quick connections, downstream transmissions at speeds up to 56K  
bps*, and upstream transmissions at speeds up to 48K bps when connected to V.92-  
compatible Internet service providers. Transmissions between the MultiModemZPX  
and other client modems are limited to 33.6K bps, as are upstream transmissions to  
non-V.92-compatible ISPs and downstream transmissions that are converted more  
than once on the telephone network.  
The MultiModemZPX also supports Super G3ITU-T V.34 fax communications at  
speeds up to 33.6K bps with Class 2.1 fax commands.  
Modem features include Plug and Play operation, callback security, and remote  
configuration. In standard mode, you can store up to four command lines or  
telephone numbers of up to 40 characters each in the modemsnonvolatile memory.  
In callback security mode, you can store up to 30 passwords and dialing strings.  
Other modem capabilities include voice operation using the included software,  
AT&T calling card tone detection, pulse and tone dialing, adaptive answer, DTR  
dialing, U.S. Caller ID reporting, two-wire leased-line operation, 11-bit operation,  
V.42 error correction, and V.42bis and V.44 data compression.  
What Is in Your Modem Package?  
Your modem package has several components. Make sure you have them all before  
trying to operate your modem. The MultiModemZPX package should include:  
An MT5634ZPX-PCI-V92 data/fax/voice modem  
An RJ-11 telephone cable  
A printed Quick Start Guide  
A MultiModemZPX CD containing the modem driver and this User Guide  
A CD containing data communications and other programs  
If any item is missing, please contact Multi-Tech Systems or your dealer/distributor  
(see Appendix D for information on contacting Multi-Tech via telephone, fax, or the  
Internet).  
*Though this modem is capable of 56K bps download performance, line impairments, public  
telephone infrastructure, and other external technological factors currently prevent maxi-  
mum 56K bps connections.  
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MultiModemZPX User Guide  
2 Installation  
Introduction  
This chapter shows you step-by-step how to set up your MultiModemZPX data/fax/  
voice modem and make your first calls.  
What You Will Need  
Before starting, please make sure you have everything you need:  
We supply  
You supply  
An MT5634ZPX-PCI-V92 data/fax/voice modem  
An RJ-11 telephone cable  
A printed Quick Start Guide  
An installation CD containing a modem driver and this User Guide  
A CD containing data communications and other programs  
A 100-MHz or faster Pentium personal computer with an unused PCI expansion  
slot. For video conferencing, we recommend a 166-MHz or faster computer.  
Windows 95, 98, NT, 2000, or Linux (2.2.x kernal) operating system installed  
A CD-ROM drive  
Tools to open your computer  
The computers manual  
A nearby telephone line jack  
A 3.58mm (9/64-inch) plug male-to-male stereo patch cord (optional)  
An external speaker or headphone (optional)  
An external microphone (optional)  
Safety Warnings  
Use this product only with UL- and CUL-listed computers (U.S.A.)  
To reduce the risk of fire, use only 26 AWG (.41mm) or larger telephone wiring.  
Never install telephone wiring during a lightning storm.  
Never install a telephone jack in a wet location unless the jack is specifically  
designed for wet locations.  
Never touch uninsulated telephone wires or terminals unless the telephone line  
has been disconnected at the network interface.  
Use caution when installing or modifying telephone lines.  
Avoid using a telephone during an electrical storm; there is a risk of electrical  
shock from lightning.  
Do not use a telephone in the vicinity of a gas leak.  
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2 Installation  
Step 1: Install the MultiModemZPX in your Computer  
Figure 2-1. The MultiModemZPX.  
Installing the MultiModemZPX requires you to open your computer. Please consult  
your computer manual in addition to the following instructions.  
1. Turn off the computer and unplug it. Failure to do so may result in damage to  
both the MultiModemZPX and the computer. Do not turn on the computer until  
the instructions tell you to do so.  
2. Remove the cover from the computer as instructed in the computer manual.  
3. Select an empty PCI expansion slot. Remove the expansion slot cover and save  
the retaining screw.  
4. Before handling the MultiModemZPX, discharge static in your body by touching  
a metal piece of the computer chassis. Carefully remove the MultiModemZPX  
from its antistatic bag, handling it only by the mounting bracket and edges. Do  
not touch the gold-plated connectors along the bottom edge.  
5. Place the MultiModemZPX directly above the expansion slot and gently, but  
firmly, push it into the connector until the cards retaining bracket is flush  
against the computer chassis.  
6. Fasten the retaining bracket to the computer chassis with the screw saved in step 3.  
7. Replace the cover of the computer.  
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Step 2: Make the External Connections  
Now connect the MultiModemZPX to the telephone line and, optionally, to your  
telephone. For voice mail or speakerphone use, you can also connect it to a micro-  
phone and an external speaker, headphone, or sound card. The microphone can be  
used for recording answering machine messages or for speakerphone use. The  
speaker or headphone can be used for playing back messages or as a speakerphone.  
PHONE  
PHONE  
LINE  
LINE  
MIC IN  
MIC  
LINE OUT  
LINE  
Figure 2-2. MT5634ZPX-PCI-V92 connectors.  
Line Connection  
Plug one end of the provided telephone cable into the modems LINE jack, and the  
other end into a telephone wall jack. This is the only required connection.  
Note: The LINE jack is not interchangeable with the PHONE jack. Do not plug the  
phone into the LINE jack or the line cable into the PHONE jack.  
Note: The Federal Communications Commission (FCC) and Industry Canada  
impose certain restrictions on equipment connected to public telephone systems.  
For more information, see Appendix A.  
Phone Connection  
If you wish to connect a telephone to the same line as the modem, plug it into the  
modems PHONE jack.  
Note: The PHONE jack is not interchangeable with the LINE jack. Do not plug the  
phone into the LINE jack or the line cable into the PHONE jack.  
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Microphone Connection  
For voice mail or speakerphone applications, plug an unamplified microphone into  
the MIC jack. The microphone should have a stereo 3.58mm (9/64-inch) mini plug.  
Do not use a monophonic microphone.  
Sound Card and Speaker Connections  
For voice mail or speakerphone applications, use a 3.58mm (9/64-inch) plug male-  
to-male stereo patch cord to connect the LINE OUT jack on the modem to the LINE  
IN jack on your sound card. If your sound card does not have a LINE IN jack, use its  
MIC jack.  
This will allow you to hear modem activity whether it is originating or answering a  
call, or playing a recorded message. If you do not have a sound card, you can plug  
an amplified speaker into the LINE OUT jack.  
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Step 3: Install the Modem Driver  
If you use Windows 95 or newer, you must install the modem driver. The modem  
driver tells Windows how to control the modem. If you use a Linux operating sys-  
tem, please see Appendix F for installation instructions. If you use the SCO OpenS-  
erver operating system, please see Appendix G.  
Windows 95  
1. After installing the MultiModemZPX into your computer, turn the computer on  
and allow Windows 95 to start. As the computer starts, it automatically detects  
the new modem, and the New Hardware Found wizard appears.  
2. Insert the MultiModemZPX CD into your computers CD-ROM drive, and then  
click Next. Windows begins searching for the driver.  
3. When Windows says it has found an updated driver for the Multi-Tech  
MT5634ZPX-PCI-V92, click Finish to complete the modem driver installation.  
4. When Windows says it has found the driver for the Voice Modem, click Next.  
5. When prompted, click Finish to complete the installation.  
6. After completing the hardware and driver installation, you must configure your  
modem for country-specific operation. See Step 4: Configure the Modem for  
Your Countryfor configuration instructions.  
7. After setting up your modem for country-specific operation, youll want to con-  
figure your communications software or Windows Dial-Up Networking. Infor-  
mation about configuring your communications software can be found in Step 5.  
Windows 98/Me  
1. After installing the MultiModemZPX into your computer, turn the computer on  
and allow Windows to start. As the computer starts, it automatically detects the  
new modem, and the New Hardware Found wizard appears.  
2. Click Next to begin the installation.  
3. When the wizard asks, What do you want Windows to do?Select Search for  
the best driver for your device, and then click Next.  
4. When the wizard says, Windows will search for new drivers in its driver data-  
base on your hard drive and in any of the following selected locations,insert  
the MultiModemZPX CD into your computers CD-ROM drive, and then select  
CD-ROM drive. Click Next.  
5. When prompted, select the driver for the Multi-Tech MT5634ZPX-PCI-V92, and  
then click Next.  
6. If the Insert Disk dialog box says that the file 56ZPX.CAT cannot be found, click  
Skip File to continue the installation.  
7. When prompted, click Finish to complete the modem driver installation.  
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8. When the Add New Hardware wizard says it will search for new drivers for the  
Wave device for the voice modem, click Next.  
9. Select Search for the best driver for your device, and then click Next.  
10. Select CD-ROM drive, and then click Next.  
11. When Windows says it has found the driver for the voice modem, click Next to  
continue.  
12. When prompted, click Finish to complete the installation.  
13. After completing the hardware and driver installation, you must configure your  
modem for country-specific operation. See Step 4: Configure the Modem for  
Your Countryfor configuration instructions.  
14. After setting up your modem for country-specific operation, youll want to con-  
figure your communications software or Windows Dial-Up Networking. Infor-  
mation about configuring your communications software can be found in Step 5.  
Changing the Windows 95/98/Me COM port assignment  
Unlike an external modem, the MultiModemZPX contains its own serial port. When  
Windows detects the MultiModemZPX, it assigns the next available COM port to it.  
Since COM1 through COM4 are standard serial ports in Windows computers, Win-  
dows typically assigns COM5 to the modems serial port.  
If Windows assigns the modem to a COM port higher than 4, then certain legacy soft-  
ware applications will not recognize the modem. To correct this situation, Multi-Tech  
Systems provides two additional driver files on the MultiModemZPX CD that may  
be used to reassign the modem to either COM3 or COM4. To reassign the COM port:  
1. Insert the MultiModemZPX CD into your computers CD-ROM drive.  
2. Click Start | Settings | Control Panel. Double-click the System icon.  
3. Select the Device Manager tab, and double-click the Modem icon.  
4. Double-click MT5634ZPX-PCI-V92 to go to the Properties dialog box.  
5. Select the Driver tab. Click the Update Driver button and follow the Update  
Device Driver wizard prompts. The wizard requests you to specify the path of  
the new driver. If youd like to reassign your modem to COM3, type D:\COM-  
3\pcicom3.inf, where D: is the drive letter associated with your computers CD-  
ROM drive. If you want to reassign your modem to COM4, type  
D:\COM-4\pcicom4.inf and continue with the wizards instructions.  
6. When the wizard completes its installation, your modem should be reassigned  
to the new COM port.  
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Verifying the Windows 95/98/Me Configuration  
Windows assigns an interrupt request (IRQ) number for your modem. Because the  
number of IRQs is limited, a computer with several accessories may not have an  
available IRQ for your new modem. In that case, you may have to decide which of  
your other accessories you can modify or do without.  
Be aware that resource settings should be changed only by users with expert knowl-  
edge of computer hardware and hardware configurations.  
Note: Changing resource settings improperly can disable your hardware and can  
cause your computer to malfunction or be inoperable.  
Use the following procedure to check the assignments Windows has made for your  
modem:  
1. Click Start | Settings | Control Panel. Double-click the System icon.  
2. When the System Properties dialog box appears, click the Device Manager tab.  
A list of device types appears.  
3. Double-click Modem to display a list of modems installed in your computer.  
4. Double-click Multi-Tech Systems MT5634ZPX-PCI-V92. The Modem Proper-  
ties dialog box appears.  
5. Click the Resources tab and note the Conflicting Device list. If there is a conflict  
between your modem and another device in your computer, the information ap-  
pears here. For help in resolving a conflict, click Start | Help, and then search  
the Help index for the Hardware Conflict Troubleshooter. When finished, click  
OK to exit the System Properties dialog box.  
6. In Control Panel, double-click the Modems icon.  
7. When the Modems Properties dialog box appears, click the Diagnostics tab. A  
list of ports and devices appears.  
8. Highlight the COM port associated with the MT5634ZPX-PCI-V92. Click More  
Info. Clicking More Info causes Windows to send commands to and receive re-  
sponses from the modem. The system also displays information about the mo-  
dems COM port.  
9. Write down the modems port, interrupt, address, and highest speed. You will  
need this information to configure any legacy (nonWindows) communications  
software you install.  
Port: COM ______ Interrupt: _______ Address: _________ Speed: _________  
10. Click the General tab. Select Multi-Tech Systems MT5634ZPX-PCI-V92, and  
click Properties to review the modems default communications settings. Do not  
change any settings unless you have special requirements.  
11. Click Dialing Properties and review your dialing settings. If you are required to  
dial 9 to get an outside line, type 9 in the local and long distance boxes. If you  
have Call Waiting service, disable Call Waiting to prevent it from interrupting a  
data or fax transmission. When you are finished, click OK to exit the dialog box.  
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Windows NT 4.0  
Before you begin a Windows NT installation, make sure Windows NT Service Pack 3  
or newer is installed on the computer. Also, to add and remove devices you must be  
logged on with Administrator privileges.  
1. After installing the MultiModemZPX modem into your computer, turn the com-  
puter on and allow Windows NT to start.  
2. Insert the MultiModemZPX CD into your computers CD-ROM drive.  
3. When the MT5634ZPX-PCI Autorun menu appears, choose Windows NT Setup.  
4. The Multi-Tech Systems NT4 PCI Modem Setup dialog box shows the COM  
port assigned to the modem. You can change the COM port assignment by click-  
ing the down arrow and selecting an unused COM port.  
5. Now click Install. The MT5634ZPX-PCI-V92 driver is installed on the selected  
COM port.  
6. When a message asking you to restart the computer appears, remove the CD  
from the CD-ROM drive, and then click OK to restart the computer.  
Remote Access Setup  
Before you can use your modem, Dial-Up Networking must be installed, and the  
new modem must be selected as the Remote Access Service device.  
If Dial-Up Networking is not installed  
1. Double-click the My Computer icon, and then double-click the Dial-Up Net-  
working icon. If Dial-Up Networking is not installed, you will see an Install  
button in the Dial-Up Networking dialog box.  
2. Insert the Windows NT 4.0 compact disc into the CD-ROM drive.  
3. Click Install in the Dial-Up Networking dialog box.  
4. In the Add RAS Device dialog box, choose Multi-Tech Systems MT5634ZPX-  
PCI-V92, and then click OK.  
5. In the Remote Access Setup dialog box, click Configure.  
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6. In the Configure Port Usage dialog box, select Dial out only, Receive calls  
only, or Dial out and receive calls, depending upon how the phone line will be  
used. Click OK.  
7. In the Remote Access Setup dialog box, click Network.  
8. In the Network Configuration dialog box, make sure that only TCP/IP is select-  
ed, and then click OK.  
9. If there is a network interface card that does not have TCP/IP bound to it, the  
Microsoft TCP/IP Properties window appears. Click Cancel to close the window.  
10. Click Continue, and then click Restart to finish the installation.  
11. After completing the hardware and driver installation, you must configure your  
modem for country-specific operation. See Step 4: Configure the Modem for  
Your Countryfor configuration instructions.  
12. After setting up your modem for country-specific operation, youll want to con-  
figure your communications software or Windows Dial-Up Networking. Infor-  
mation about configuring your communications software can be found in Step 5.  
If Dial-Up Networking is already installed  
1. Double-click the My Computer icon, then the Control Panel icon, and then the  
Network icon.  
2. In the Network dialog box, click the Services tab, and then double-click Remote  
Access Service.  
3. In the Remote Access Setup dialog box, a list of modems is displayed. Click Add.  
4. In the Add RAS Device dialog box, choose Multi-Tech Systems MT5634ZPX-  
PCI-V92, and then click OK.  
5. In the Remote Access Setup dialog box, click Configure.  
6. In the Configure Port Usage dialog box, select Dial out only, Receive calls  
only, or Dial out and receive calls, depending upon how the phone line will be  
used. Click OK.  
7. In the Remote Access Setup dialog box, click Continue.  
8. The system processes the new information and the Network Settings Change  
dialog box appears. Select Yes to restart your computer.  
9. After completing the hardware and driver installation, you must configure your  
modem for country-specific operation. See Step 4: Configure the Modem for  
Your Countryfor configuration instructions.  
10. After setting up your modem for country-specific operation, youll want to con-  
figure your communications software or Windows Dial-Up Networking. Infor-  
mation about configuring your communications software can be found in Step 5.  
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Verifying the Windows NT Configuration  
To verify your modem configuration in Windows NT:  
1. Click Start | Settings | Control Panel. Double-click Modems.  
2. The Modem Properties dialog box appears, showing the COM port associated  
with the modem.  
3. Click Properties. View the General tab to display information about modem  
speed. Click the Connection tab to see information about connection and call  
preferences.  
You can also view configuration information under NTs Remote Access Services, by  
clicking Start | Settings | Control Panel. Double-click the Network tab. Click the  
Services tab, Highlight Remote Access Services and then click Properties. The list  
of modems and associated COM ports appears.  
Windows 2000  
1. After installing the MultiModemZPX into your computer, turn the computer on  
and allow Windows 2000 to start. As the computer boots, it automatically de-  
tects the new modem, and the Found New Hardware wizard appears.  
2. Click Next to begin the driver installation.  
Note: If a Digital Signature Not Found message appears at any point during the  
installation process, select Yes to continue the installation.  
3. In the Install Hardware Device Drivers dialog box, select Search for a suitable  
driver for my device, and then click Next.  
4. In the Driver Files Search Results dialog box, select CD-ROM drives.  
5. Insert the MultiModemZPX CD into the CD-ROM drive, and then click Next.  
6. When the Driver Files Search Results dialog box says Windows has found a  
driver, click Next.  
7. When the Completing the Found New Hardware Wizard dialog box says Win-  
dows has finished installing the software for this device, click Finish.  
8. After completing the hardware and driver installation, you must configure your  
modem for country-specific operation. See Step 4: Configure the Modem for  
Your Countryfor configuration instructions.  
9. After setting up your modem for country-specific operation, youll want to con-  
figure your communications software or Windows Dial-Up Networking. Infor-  
mation about configuring your communications software can be found in Step 5.  
Verifying the Windows 2000 Configuration  
To verify your modem adapter configuration in Windows 2000:  
1. Click Start | Settings | Control Panel. Double-click Phone and Modem Properties.  
2. In the Phone and Modem Properties dialog box, click the Modems tab.  
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3. In the Modem tab, select Multi-Tech Systems MT5634ZPX-PCI-V92, and then  
click the Properties button to display information about your modem settings.  
Extra AT commands (see Chapter 4) may be entered in the Extra initializa-  
tion commands field.  
To change port assignments, click Advanced Port Settings. Use the COM  
Port number list to select an unused COM port.  
Windows 2000 automatically configures Plug and Play devices such as the Multi-  
ModemZPX to work properly with other devices installed in your computer.  
If you are using non-Plug and Play devices in your computer and a resource conflict  
occurs that requires manual resource configuration, consult the instruction manual  
supplied with the device in question.  
Be aware that resource settings should be changed only by users with expert knowl-  
edge of computer hardware and hardware configurations. Changing resource set-  
tings improperly can disable your hardware and can cause your computer to  
malfunction or become inoperable.  
Viewing system resources  
1. Click Start | Settings | Control Panel.  
2. Double-click System, and then click the Hardware tab.  
3. Click Device Manager.  
4. Click the Action tab to display information about Device Manager options.  
Removing Previous Modems from Windows 2000  
1. To remove a modem adapter from Windows 2000, click Start | Settings | Con-  
trol Panel. Double-click Add/Remove Hardware.  
2. The Add/Remove Hardware Wizard displays. Click Next.  
3. When the Choose Hardware Task dialog box displays, select Uninstall/Unplug  
a device.  
4. In the Choose a Removal Task dialog box, select Uninstall a device, and then  
click Next.  
5. The Installed devices on your computer dialog box provides a list of devices  
installed on your computer. Select the device you want to uninstall from the list.  
Click Next.  
6. In the Uninstall a Device dialog box, verify that the correct device is highlighted,  
and then select Yes. Click Next to continue.  
7. When the Completing the Add/Remove Hardware dialog box indicates Win-  
dows has successfully uninstalled the device, click Finish.  
Note: If you are removing a Plug and Play device from Windows 2000, you must  
physically remove the device from the computer or Windows 2000 will request  
driver installation each time the system starts.  
14  
 
MultiModemZPX User Guide  
2 Installation  
Step 4: Configure the Modem for Your Country  
Before you use your modem, you must configure it for the country in which it will  
be used. You must also do this if you move the modem to another country after it has  
been configured for the first country. You can use one of two configuration methods:  
the Global Wizard utility or AT commands.  
The Global Wizard Utility  
The Global Wizard configuration utility is recommended for computers running  
Windows 95 or newer.  
1. Insert the MultiModemZPX CD into the CD-ROM drive. The Autorun menu  
should appear.  
2. Click Initial Setup and Country Selection.  
3. In the Global Wizard dialog box, select either Run from CD or Install on your  
PC. Choose the former to configure your modem without installing the Global  
Wizard on your computer. Choose the latter to install the Global Wizard on you  
computer and Start menu.  
4. Click Next. The Global Wizard searches for your modem and identifies it.  
5. Click Next.  
6. Select the country in which the modem will be used, and then click Next.  
7. Review your choice of country. If it is correct, click Next to configure the modem.  
8. When Global Wizard announces that the parameters have been set, click Finish  
to exit.  
AT Commands  
Non-Windows users can configure the modem using AT commands. You must enter  
these commands in your communication programs terminal window.  
1. Run your favorite communication program, and open the programs terminal  
window.  
2. To configure the modem for a specific country, type AT%T19,0,nn, where nn is  
the country code in hexadecimal notation, and then press Enter.  
3. To verify the change, type ATI9, and then press Enter. The country code is dis-  
played in decimal format.  
Example of country, command and result codes  
Country  
AT command  
Result code  
(hexadecimal)  
AT%T19,0,34 (default)  
AT%T19,0,10  
(decimal)  
52  
16  
Euro/NAM  
Japan  
A complete list of country codes can be found on the Multi-Tech Web site at  
15  
 
MultiModemZPX User Guide  
2 Installation  
Step 5: Install and Configure Your Software  
You may use either the communication program included with your modem or a  
third-party program. Communication programs designed for Windows 95 and  
above normally do not need to be manually configured, since they obtain configura-  
tion information from Windows. Communication programs designed for DOS and  
other operating systems, however, may need to be manually configured to work  
with your modem. Though each communication program is different, the following  
procedure should work with most of them.  
1. Install and run your communication program.  
2. Find the dialog box or menu that lets you select your modem. (In Windows  
HyperTerminal select File | Properties | Phone Number; in PhoneTools select  
Configure | General Configuration | Communication | Change Modem.  
3. Choose your modem from the programs modem list. If it isnt listed, choose a  
generic modem and modify the settings as necessary.  
4. Change the modem initialization string, if necessary. The factory default config-  
uration works well for most purposes. To load the factory default configuration,  
use AT&F. To load a custom configuration that was saved using the &W com-  
mand, use ATZ. If you do not want the modem to always answer the phone,  
add S0=0 to the string. To use Caller ID with the modem, add S0=2 to the string  
(Caller ID information is sent between the first and second rings, so the phone  
must ring at least twice befor the modem picks up the line). Depending on the  
software, you might have to end the string with a carriage return character (^M).  
Note: To change the modems default configuration, type new commands in the  
communication programs terminal window, adding the &W command to store  
them in the modems nonvolatile memory. For instance, to create a default configu-  
ration that turns off autoanswer, type AT&FS0=0&W. The new configuration loads  
automatically whenever the modem is turned on or receives the ATZ command.  
5. Select the port the modem is connected to.  
6. Select your serial port speed. This can be labeled maximum speed,” “DTE  
bps,or baud rate.Ideally, if you use data compression, you should set your  
serial port baud rate to four to six times the modems maximum transmission  
speed or faster; however, few files can be compressed enough to require speeds  
that high, and not all serial ports can handle speeds that high.  
7. If the communication program has an autobaud selection, make sure it is disabled.  
Autobaud applies only to older modems, and can cause problems if enabled.  
8. If the program allows you to edit the no-connect messages (NO CARRIER,  
BUSY, NO ANSWER, NO DIALTONE), make sure there is no space between  
DIAL and TONE in NO DIALTONE.  
9. Refer to the program manual or online help for other configuration choices. In  
most cases you can accept the default values.  
16  
 
3
Operation  
 
MultiModemZPX User Guide  
3 Operation  
Introduction  
Your Multi-Tech modem operates under the control of a communication pro-  
gram, such as the PhoneTools program included with the modem. It also can op-  
erate under other general-purpose data communication programs, such as Windows  
HyperTerminal. For information on how to use the modem with the communication  
program of your choice, please refer to the programs documentation.  
Configuring the Modem  
Your modem normally is configured either through Windows or through the com-  
munication program you are using. The default settings work best for most purposes.  
For help in setting up your communication program, see Step 5: Install and Config-  
ure Your Softwarein Chapter 2.  
You can also configure your modem directly by typing AT commands in the termi-  
nal window of a communication program. See Chapter 4 for descriptions of the mo-  
dems AT commands.  
PhoneTools Features  
Using the PhoneTools communications program included with your modem, you can:  
Upload and download data files.  
Send faxes at preset times.  
Store incoming voice messages and faxes.  
Retrieve stored messages, faxes, and telephone numbers (telephone number re-  
trieval requires Caller ID service from your phone company).  
Print a received fax.  
For detailed information about operating your modem under PhoneTools, please  
refer to the PhoneTools online documentation.  
Connecting to the Internet  
Your Multi-Tech modem is your gateway to the Internet and the World Wide Web.  
To access the Internet and Web via your modem, you must establish a dial-up  
account with an Internet service provider (ISP). To locate an ISP near you, look in a  
local directory or computer publication. Your ISP should provide you with the fol-  
lowing information:  
User name (also called user ID)  
Password  
Access number (the number you call to connect to the server)  
Host name and/or domain name  
Domain Name Server (DNS) server address  
If, besides the Web, you use the Internet for e-mail and newsgroups, your ISP should  
also provide you with the following information:  
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MultiModemZPX User Guide  
3 Operation  
E-mail or POP mail address  
POP server address  
Mail or SMTP address  
News or NNT server address  
Dial-Up Networking  
Before you can connect to the Internet, you must set up a remote-node client pro-  
gram. The Windows version is called Dial-Up Networking. Dial-Up Networking es-  
tablishes your connection to the ISPs server, which is the shared computer that  
manages calls from clients (your computer) to the Internet. Most, if not all, Windows  
browsers start Dial-Up Networking automatically when you open them.  
For instructions on how to set up Dial-Up Networking, consult your ISP or your op-  
erating systems online help or printed documentation. Many ISPs include with their  
service a program that will install and configure Dial-Up Networking automatically  
for you.  
Sending a Fax  
You can use the PhoneTools program, which is included with your modem, to send and  
receive faxes directly from your computer. The following procedure uses print capture,  
which enables you to fax a document directly from the Windows application in  
which you created it without opening PhoneTools.  
1. Install PhoneTools if it is not already installed.  
2. Create a document in a Windows application, such as a word processor, graphic  
editor, or spreadsheet. To fax the document, keep the document open and select  
the Print command from the File menu.  
3. Select CAPTURE FAX BVRP as the printer driver, and then click OK. The Send  
Fax wizard appears.  
4. In the Recipient section, type the required information or extract it from the  
Phone Book by clicking  
.
5. In the Template section, optionally select a cover page and type a cover message.  
6. Select the document to be sent. The default file when sending from within a Win-  
dows application is Capture.dgr.  
7. Select the date and time to send the document, if you do not want to send it  
immediately.  
8. Click Finish to start the transmission.  
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MultiModemZPX User Guide  
3 Operation  
References  
The World Wide Web is an excellent source of information about modems in general  
and modem installation, configuration, and troubleshooting in particular. The following  
Web sites are good places to start:  
Costmos Other Resources Page:  
Data Communications FAQ:  
Modemsite.com:  
Vee90.net:  
20  
 
4
AT Commands,  
S-Registers &  
Result Codes  
 
MultiModemZPX User Guide  
4 AT Commands, S-Registers, and Result Codes  
Introduction  
AT commands are used to control the operation of your modem. They are so called  
because each command must be preceded by the characters AT to get the ATtention  
of the modem.  
AT commands can be issued only when the modem is in command mode or online  
command mode. The modem is in command mode whenever it is not connected to  
another modem. The modem is in data mode whenever it is connected to another mo-  
dem and ready to exchange data. Online command mode is a temporary state in which  
you can issue commands to the modem while connected to another modem. To put  
the modem into online command mode from data mode, you must issue an escape  
sequence (+++) followed immediately by the AT characters and the command, e.g.,  
+++ATH to hang up the modem. To return to data mode from online command  
mode, you must issue the command ATO.  
To send AT commands to the modem you must use a communications program,  
such as HyperTerminal or the PhoneTools communications program included with  
your modem. You can issue commands to the modem either directly, by typing  
them in the terminal window of the communications program, or indirectly, by con-  
figuring the operating system or communications program to send the commands  
automatically. Fortunately, communications programs make daily operation of mo-  
dems effortless by hiding the commands from the user. Most users, therefore, need  
to use AT commands only when reconfiguring the modem; for example, to turn au-  
toanswer on or off.  
The format for entering an AT command is ATXn, where X is the command and n is  
the value for the command, sometimes called the command parameter. The value is  
always a number. If the value is zero, you can omit it from the command; thus,  
AT&W is equivalent to AT&W0. Most commands have a default value, which is the  
value that is set at the factory. The default values are shown in the AT Commands”  
section, which begins on the next page.  
You must press the ENTER key (abbreviated <CR>, for carriage return) to send the  
command to the modem. Any time the modem receives a command, it sends a re-  
sponse known as a result code. The most common result codes are OK, ERROR, and  
the CONNECT messages that the modem sends to the computer when it is connect-  
ing to another modem. For a table of valid result codes, see Result Codesat the  
end of this chapter.  
You can issue several commands in one line, in what is called a command string. The  
command string begins with AT and ends when you press ENTER. Spaces to separate  
the commands are optional; they are ignored by the command interpreter. The most  
familiar command string is the initialization string, which is used to configure the  
modem when it is turned on or reset, or when your communications software calls  
another modem.  
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MultiModemZPX User Guide  
4 AT Commands, S-Registers, and Result Codes  
AT Commands  
Command:  
Values:  
AT  
Attention Code  
n/a  
Description:  
The attention code precedes all command lines except A/ and  
the escape sequence.  
Command:  
Values:  
ENTER Key  
n/a  
Description:  
Press the ENTER or RETURN key to execute most commands. This  
action is frequently abbreviated <CR>.  
Command:  
Values:  
A
Answer  
n/a  
Description:  
Answers an incoming call before the final ring.  
Command:  
Values:  
A/  
Repeat Last Command  
n/a  
Description:  
Repeats the last command string. Do not precede this com-  
mand with AT. Do not press ENTER to execute.  
Command:  
Values:  
Bn  
Communication Standard Setting  
n = 03, 15, 16  
Default:  
1 and 16  
Description: B0  
Select ITU-T V.22 mode when modem is at 1200 bps.  
Select Bell 212A when modem is at 1200 bps.  
Deselect V.23 reverse channel (same as B3).  
Deselect V.23 reverse channel (same as B2).  
B1  
B2  
B3  
B15 Select V.21 when the modem is at 300 bps.  
B16 Select Bell 103J when the modem is at 300 bps.  
Command:  
Values:  
Default:  
Ds  
Dial  
s = dial string (phone number and dial modifiers)  
none  
Description:  
Dial telephone number s, where s may up to 40 characters long  
and include the 09, *, #, A, B, C, and D characters, and the L,  
P, T, W, S, comma (,), semicolon (;), !, @, ^ and $ dial string  
modifiers.  
Dial string modifiers:  
L
P
Redial last number. (Must be placed immediately after ATD.)  
Select pulse-dialing until a T is encountered. Affects cur-  
rent and subsequent dialing.  
T Select tone-dialing until a P is encountered. Affects current  
and subsequent dialing.  
W Wait for a new dial tone before continuing to dial. (X2, X4,  
X5, X6, or X7 must be selected.)  
,
;
Pause during dialing for time set in register S8.  
Return to command mode after dialing. Place at end of dial  
string.  
!
Hook flash. Causes the modem to go on-hook for one-half  
second, then off-hook again.  
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4 AT Commands, S-Registers, and Result Codes  
@ Wait for quiet answer. Causes modem to wait for a ring  
back, then 5 seconds of silence, before processing next part  
of command. If silence is not detected, the modem returns a  
NO ANSWER code.  
^
$
Disable data calling tone transmission.  
Detect AT&T call card bongtone. The character should  
follow the phone number and precede the users call card  
number: ATDT1028806127853500$123456789.  
Command:  
Values:  
DS=n Dial Stored Telephone Number  
n = 0, 1  
Default:  
none  
Description:  
Dials a number previously stored in directory number y by the  
&Zn=x command. Example: ATDS=1.  
Command:  
Values:  
En  
Echo Command Mode Characters  
n = 0 or 1  
Default:  
1
Description: E0  
E1  
Does not echo keyboard input to the terminal.  
Does echo keyboard input to the terminal.  
Command:  
Values:  
Fn  
Echo Online Data Characters  
n = 1  
Default:  
1
Description: F0  
F1  
Enables online data character echo. (Not supported.)  
Disables online data character echo (included for backward  
compatibility with some software).  
Command:  
Values:  
Hn  
Hook Control  
n = 0 or 1  
Default:  
0
Description: H0  
H1  
Goes on-hook (hangs up).  
Goes off-hook (makes the phone line busy).  
Command:  
Values:  
In  
Information Request  
n = 05, 9, 11  
Default:  
None  
Description: I0  
Displays default speed and controller firmware version.  
Calculates and displays ROM checksum (e.g., B399).  
Checks ROM and verifies the checksum, displaying OK or ERROR.  
Displays default speed and controller firmware version.  
Displays firmware version for data pump (e.g., 17).  
Displays the board ID: software version, hardware version, and  
the country ID in hexadecimal format (e.g., s0503a01V, 0, 34).  
Displays the country code in decimal format (e.g., 52).  
Displays diagnostic information for the last modem  
connection, such as DSP and firmware version, link type, line  
speed, serial speed, type of error correction/data compression,  
number of past retrains, etc.  
I1  
I2  
I3  
I4  
I5  
I9  
I11  
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MultiModemZPX User Guide  
4 AT Commands, S-Registers, and Result Codes  
Command:  
Values:  
Default:  
Description: M0  
M1  
Mn  
Monitor Speaker Mode  
n = 0, 1, 2, or 3  
1
Speaker always off.  
Speaker on until carrier signal detected.  
Speaker always on when modem is off-hook.  
Speaker on until carrier is detected, except while dialing.  
M2  
M3  
Command:  
Values:  
Nn  
Modulation Handshake  
n = 0 or 1  
Default:  
1
Description: N0  
N1  
Modem performs handshake only at communication standard  
specified by S37 and the B command.  
Modem begins handshake at communication standard speci-  
fied by S37 and the B command. During handshake, fallback  
to a lower speed can occur.  
Command:  
Values:  
On  
Return Online to Data Mode  
0, 1, 3  
Default:  
None  
Description: O0  
Exits online command mode and returns to data mode (see  
+++AT<CR> escape sequence ).  
Issues a retrain and returns to online data mode.  
Issues a rate renegotiation and returns to data mode.  
O1  
O3  
Command:  
Values:  
P
Pulse Dialing  
P, T  
Default:  
T
Description:  
Configures the modem for pulse (non-touch-tone) dialing.  
Dialed digits are pulsed until a T command or dial modifier is  
received.  
Command:  
Values:  
Qn  
Result Codes Enable/Disable  
n = 0 or 1  
Default:  
0
Description: Q0  
Enables result codes.  
Q1  
Q2  
Disables result codes.  
Returns an OK for backward compatibility with some software.  
Command:  
Values:  
Sr=n Set Register Value  
r = S-register number; n varies  
Default:  
None  
Description:  
Sets the value of register Sr to the value of n, where n is entered  
in decimal format. Example: S0=1.  
Command:  
Values:  
Sr? Read Register Value  
r = S-register number  
Default:  
None  
Description:  
Reads the value of register Sr and displays it in 3-digit decimal  
form. For example, S2? gives the response 043.  
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4 AT Commands, S-Registers, and Result Codes  
Command:  
Values:  
T
Tone Dialing  
P, T  
Default:  
T
Description:  
Configures the modem for DTMF (touch-tone) dialing. Dialed  
digits are tone dialed until a P command or dial modifier is  
received.  
Command:  
Values:  
Vn  
Result Code Format  
n = 0 or 1  
Default:  
1
Description: V0  
V1  
Displays result codes as digits (terse response).  
Displays result codes as words (verbose response).  
Command:  
Values:  
Wn Result Code Options  
n = 0, 1, or 2  
Default:  
2
Description: W0  
CONNECT result code reports DTE (serial port) speed,  
disables protocol result codes.  
W1  
W2  
CONNECT result code reports DTE (serial port) speed, enables  
protocol result codes.  
CONNECT result code reports DCE (line) speed, enables  
protocol result codes.  
Command:  
Values:  
Xn  
Result Code Selection  
n = 07  
Default:  
4
Description: X0  
Basic result codes (e.g., CONNECT); does not look for dial tone  
or busy signal.  
X1  
X2  
Extended result codes (e.g., CONNECT 46000 V42bis); does not  
look for dial tone or busy signal.  
Extended result codes with NO DIALTONE; does not look for  
busy signal.  
X3  
X4  
X5  
X6  
X7  
Extended result codes with BUSY; does not look for dial tone.  
Extended result codes with NO DIALTONE and BUSY.  
Extended result codes with NO DIALTONE and BUSY.  
Extended result codes with NO DIALTONE and BUSY.  
Basic result codes with NO DIALTONE and BUSY.  
Command:  
Values:  
Zn  
Modem Reset  
n = 0 or 1  
Default:  
Description: Z0  
Z1  
None  
Resets modem to profile saved by the last &W command.  
Same as Z0.  
Command:  
Values:  
&Cn Data Carrier Detect (DCD) Control  
n = 0, 1, or 2  
Default:  
1
Description: &C0 Forces the DCD circuit to be always high.  
&C1 DCD goes high when the remote modems carrier signal is  
detected, and goes low when the carrier signal is not detected.  
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4 AT Commands, S-Registers, and Result Codes  
Command:  
Values:  
&Dn Data Terminal Ready (DTR) Control  
n = 0, 1, 2, or 3  
Default:  
2
Description: &D0 Modem ignores the true status of the DTR signal and responds  
as if it is always on.  
&D1 If DTR drops while in online data mode, the modem enters  
command mode, issues an OK, and remains connected.  
&D2 If DTR drops while in online data mode, the modem hangs up.  
If the signal is not present, the modem will not answer or dial.  
&D3 If DTR drops, the modem hangs up and resets as if an ATZ  
command were issued.  
Command:  
Values:  
&En XON/XOFF Pacing Control  
n = 12 or 13  
Default:  
12  
Description: &E12 Disables XON/XOFF pacing.  
&E13 Enables XON/XOFF pacing. (&K4 must also be set.)  
Note: &E13 has no effect if hardware control (&K3) is selected.  
Command:  
Values:  
&Fn Load Factory Settings  
n = 0  
Default:  
None  
Description: &F0 Loads factory settings as active configuration.  
Note: See also the Z command.  
Command:  
Values:  
&Gn V.22bis Guard Tone Control  
n = 0, 1, or 2  
Default:  
0
Description: &G0 Disables guard tone.  
&G1 Sets guard tone to 550 Hz.  
&G2 Sets guard tone to 1800 Hz.  
Note: The &G command is not used in North America.  
Command:  
Values:  
&Kn Flow Control Selection  
n = 0, 3, or 4  
Defaults:  
3
Description: &K0 Disables flow control.  
&K3 Enables CTS/RTS hardware flow control.  
&K4 Enables XON/XOFF software flow control.  
Command:  
Values:  
&Qn Asynchronous Communications Mode  
n = 0, 5, 6, 8, or 9  
Default:  
5
Description: &Q0 Asynchronous with data buffering. Same as \N0.  
&Q5 Error control with data buffering. Same as \N3.  
&Q6 Asynchronous with data buffering. Same as \N0.  
&Q8 MNP error control mode. If MNP error control is not estab-  
lished, the modem falls back according to the setting in S36.  
&Q9 V.42 or MNP error control mode. If neither error control is es-  
tablished, the modem falls back according to the setting in S36.  
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Command:  
Values:  
&Sn Data Set Ready (DSR) Control  
n = 0 or 1  
Default:  
0
Description: &S0 DSR is always high (on).  
&S1 DSR goes high only during a connection.  
Command:  
Values:  
&Tn V.54 Test Commands  
n = 0, 1, 3 or 6  
Default:  
None  
Description: &T0 Abort. Stops any test in progress.  
&T1 Initiates local analog loopback test.  
&T3 Initiates local digital loopback test.  
&T6 Initiates remote digital loopback test.  
Note: To stop a test, you must use the escape sequence (+++AT) before typing &T0.  
Command:  
Values:  
&V  
Display Current Settings  
n/a  
Description:  
Displays the active modem settings.  
Command:  
Values:  
&Wn Store Current Configuration  
n = 0, 1  
Default:  
None  
Description: &W0 Stores current modem settings in nonvolatile memory and  
causes them to be loaded in place of the factory defaults at  
power-on or following the ATZ command. See also the &F  
command.  
&W1 Clears user default settings from nonvolatile memory and  
causes the factory defaults to be loaded at power-on or follow-  
ing the ATZ command.  
Command: &Zn=x Store Dialing Command  
Values:  
n = 0, 1  
x = Dialing command string  
Default:  
None  
Description:  
Stores dialing command x in memory location y. Dial the  
stored number using the command ATDS=n.  
Command:  
Values:  
&&S Speaker Codec Loopback  
n/a  
Description:  
Provides a loopback from the microphone to the speaker. For  
testing and debugging only.  
Command:  
Values:  
\An Select Maximum MNP Block Size  
n = 0, 1, 2, or 3  
Default:  
3
Description: \A0 64-character maximum.  
\A1 128-character maximum.  
\A2 192-character maximum.  
\A3 256-character maximum.  
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Command:  
Values:  
\Bn Transmit Break  
n = 09 in 100 ms units  
Default:  
3
Description:  
In non-error-correction mode only, sends a break signal of the  
specified length to a remote modem. Works in conjunction  
with the \K command.  
Command:  
Values:  
\Jn  
Data Buffer Control  
n = 0  
Default:  
0
Description: \J0  
Enables data bufferDTE (serial port) speed is independent of  
connect speed.  
Command:  
Values:  
\Kn Break Control  
n = 05  
Default:  
Description:  
5
Controls the response of the modem to a break received from  
the computer, the remote modem, or the \B commnd. The re-  
sponse is different for each of three different states.  
Data mode. The modem receives the break from the computer:  
\K0 Enters online command mode, no break sent to the remote  
modem.  
\K1 Clears data buffers and send break to the remote modem.  
\K2 Same as \K0.  
\K3 Sends break immediately to the remote modem .  
\K4 Same as \K0.  
\K5 Sends break to the remote modem in sequence with the trans-  
mitted data.  
Data mode. The modem receives the break from the remote  
modem:  
\K0 Clears data buffers and sends break to the computer.  
\K1 Same as \K0.  
\K2 Sends break immediately to the computer.  
\K3 Same as \K2.  
\K4 Sends break to the computer in sequence with the received data.  
\K5 Same as \K4.  
Online command mode. The modem receives a \Bn command  
from the computer:  
\K0 Clears data buffers and sends break to the remote modem.  
\K1 Same as \K0.  
\K2 Sends break immediately to the remote modem.  
\K3 Same as \K2.  
\K4 Sends break to the remote modem in sequence with the  
transmitted data.  
\K5 Same as \K4.  
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4 AT Commands, S-Registers, and Result Codes  
Command:  
Values:  
\Nn Error Correction Mode Selection  
n = 05, or 7  
Default:  
3
Description: \N0 Non-error correction mode with data buffering (buffer mode;  
same as &Q6).  
\N1 Direct mode.  
\N2 MNP reliable mode. If the modem cannot make an MNP  
connection, it disconnects.  
\N3 V.42/MNP auto-reliable mode. The modem attempts first to  
connect in V.42 error correction mode, then in MNP mode, and  
finally in non-error-correction (buffer) mode with continued  
operation.  
\N4 V.42 reliable mode.If the modem cannot make a V.42  
connection, it disconnects.  
\N5 V.42, MNP, or non-error correction (same as \N3).  
\N7 V.42, MNP, or non-error correction (same as \N3).  
Command:  
Values:  
\Qn Flow Control Selection  
n = 0, 1, or 3  
Default:  
3
Description: \Q0 Disables flow control (same as &K0).  
\Q1 XON/XOFF software flow control (same as &K4).  
\Q3 RTS/CTS hardware flow control (same as &K3).  
Command:  
Values:  
\Tn Inactivity Timer  
n = 0, 1255  
Default:  
0
Description: \Tn Sets the time (in minutes) that the modem waits after the last  
character is sent or received before it disconnects. A value of  
zero disables the timer. Applies only in buffer mode.  
Note: You can also set the inactivity timer by changing the value of S30.  
Command:  
Values:  
\Vn Protocol Result Code  
n = 0, 1, or 2  
Default:  
1
Description: \V0 Disables the appending of the protocol result code to the DCE  
speed.  
\V1 Enables the appending of the protocol result code to the DCE  
speed.  
\V2 Same as \V1.  
Command:  
Values:  
\Xn XON/XOFF Pass-Through  
n = 0 or 1  
Defaults:  
0
Description: \X0 Modem responds to and discards XON/XOFF characters.  
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Command:  
Values:  
-Cn Data Calling Tone  
n = 0 or 1  
Defaults:  
0
Description: -C0 Disables V.25 data calling tone to deny remote data/fax/voice  
discrimination.  
-C1 Enables V.25 data calling tone to allow remote data/fax/voice  
discrimination.  
Command:  
Values:  
%A Adaptive Answer Result Code Enable  
n = 0 or 1  
Default:  
0
Description:  
The %A command controls whether the DATA and FAX result  
codes will be sent by the modem. The modem must be in fax  
mode for this command to work. Also, the modem must be set  
to +FAA=1, which enables the modem to distinguish between  
a fax and a data call. When these commands are enabled, the  
modem sends DATA to the computer when it detects data tones,  
and FAX when it detects fax tones. These strings are used by  
some servers to select the appropriate communication program.  
%A0 Disables adaptive answer result codes.  
%A1 Enables adaptive answer result codes.  
Note: For descriptions of the +FAA= and other fax commands, see the Multi-Tech Fax  
Class 2.1 Developer’s Guide.  
Command:  
Values:  
%B View Numbers in Blacklist  
n/a  
Description:  
If blacklisting is in effect, AT%B displays the numbers for  
which the last call attempted in the previous two hours failed.  
In countries that do not require blacklisting, the ERROR result  
code appears.  
Command:  
Values:  
%Cn V.42bis Compression Control  
n = 0 or 1  
Default:  
1
Description: %C0 Disable sV.42bis/MNP 5 data compression.  
%C1 Enables V.42bis/MNP 5 data compression.  
Command:  
Values:  
%En Fallback and Fall Forward Control  
n = 0, 1, or 2  
Default:  
2
Description: %E0 Disables fallback and fall-forward.  
%E1 Enables fallback, disables fall-forward.  
%E2 Enables fallback and fall-forward.  
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Command: +DCS=x,y Select V.44 Data Compression  
Values:  
x = 0 or 1 (V.42bis)  
y = 0, 1, or 2 (V.44)  
Default:  
1,2  
Description:  
Selects V.42bis/V.44 data compression.  
+DCS=0,0 V.42bis and V.44 data compression are both disabled.  
+DCS=0,1 V.42bis is disabled; V.44 data compression is acceptable.  
+DCS=0,2 V.42bis is disabled; V.44 only when connected to a V.92 server.  
+DCS=1,0 V.42bis is acceptable; V.44 data compression is disabled.  
+DCS=1,1 V.42bis is acceptable; V.44 data compression is acceptable.  
+DCS=1,2 V.42bis is acceptable; V.44 only when connected to a V.92 server.  
+DCS=?  
+DCS?  
Displays the allowed values.  
Displays the current value.  
Command: +DR=n V.44 Data Compression Reporting  
Values:  
n = 0 or 1  
Default:  
0
Description:  
Enables or disables the V.44 data compression report. If the  
compression report is enabled, the +DR:<type> intermediate  
result code reports the current DCE-DCE data compression type.  
It is issued after the Error Control Report (+ER) and before the  
final result code (e.g., CONNECT). The intermediate result  
code descriptions are shown after the command descriptions.  
+DR=0 Disables the V.44 compression report.  
+DR=1 Enables the V.44 compression report.  
+DR=? Displays the allowed values.  
+DR?  
Displays the current value.  
+DR: NONE Data compression not in use.  
+DR: V42B V.42bis is in use in both directions.  
+DR: V44  
V.44 is in use in both directions.  
Command: +DS44=n V.44 Data Compression  
Values:  
See description  
Default:  
See description  
Description:  
Controls the V.44 data compression function.  
The command syntax is +DS44=[direction][,[0][,[0]  
[,[max_codewords_tx][,[max_codewords_rx][,[max_string_tx]  
[,[max_string_rx][,[max_history_tx][,[max_history_rx]]]]]]]]]<CR>  
Subparameters that are not entered retain their current value.  
Commas separate optional subparameters, and must be inserted  
to skip a subparameter. Example: +DS44=,,,2048,2048<CR>  
changes the maximum number of code words in both direc-  
tions, and keeps all other settings at their current values.  
+DS44=? Reports supported options in the format (list of supported di-  
rection values), (0), (0), (list of supported max_codewords_tx val-  
ues), (list of supported max_codewords_rx values), (list of sup-  
ported max_string_tx values), (list of supported max_string_rx  
values), (list of supported max_history_tx values), (list of sup-  
ported max_history_rx values). Example: +DS44: (3, 0), (0), (0),  
(256-2048), (256-2048), (31-255), (31-255), (512-11008), (512-11008).  
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+DS44? Reports current options in the following format:  
direction, 0, 0, max_codewords_tx, max_codewords_rx,  
max_string_tx, max_string_rx, max_history_tx, max_history_rx.  
Example: +DS44: 3, 0, 0, 1024, 1024, 255, 255, 5120, 4096.  
Subparameters  
direction Specifies the DTE direction of the data compression.  
0
3
No compression.  
Compression in both directions (default).  
max_codewords_tx Specifies the maximum number of code words to be negotiated  
in the transmit direction.  
1024 Default.  
2562048 Maximum number of code words in transmit direction.  
max_codewords_rx Specifies the maximum number of code words to be negotiated  
in the receive direction.  
1024 Default.  
2562048 Maximum number of code words in receive direction.  
max_string_tx Specifies the maximum string length to be negotiated in the  
transmit direction.  
255 Default.  
31255 Maximum string length in transmit direction.  
max_string_rx Specifies the maximum string length to be negotiated in the  
receivedirection.  
255 Default.  
31255 Maximum string length in receivedirection.  
max_history_tx Specifies the maximum length of the history buffer to be nego-  
tiated in the transmit direction.  
5120 Default.  
51211008 History buffer size in transmit direction.  
max_history_rx Specifies the maximum length of the history buffer to be nego-  
tiated in the receive direction.  
4096 Default.  
51211008 History buffer size in receive direction.  
Command: +ES=n Enable Synchronous Buffered Mode  
Values:  
n = 6  
Default:  
None  
Description:  
Allows an H.324 video application direct access to the synchro-  
nous data channel. On underflow, the modem sends HDLC  
flag idle (0x7E) to the remote modem.·This special error con-  
trol mode is overridden by any of the following commands:  
&F, &M, &Q, or \N.  
+ES=6 Enables direct access to the synchronous data channel.  
+ES=? Displays the allowed values.  
+ES?  
Displays the current value.  
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Command: +MS= Modulation Selection  
Values:  
See description.  
Defaults:  
Description:  
See description.  
This extended-format command selects modulation, enables or  
disables automode, and specifies the highest downstream and  
upstream connection rates using one to four subparameters.  
The command syntax is  
+MS=[mod][,[automode][,[0][,[max_rate][,[0][,[max_rx_rate]]]]]]<CR>  
Subparameters that are not entered retain their current value.  
Commas separate optional subparameters, and must be in-  
serted to skip a subparameter. Example: +MS=,0,<CR> disables  
automode and keeps all other settings at their current values.  
+MS=? Reports supported options in the format (list of supported mod  
values),(list of supported automode values),(0),(list of sup-  
ported max_rate values),(0),(list of supported max_rx_rate val-  
ues). Example: +MS: (BELL103, V21, BELL212A, V22, V22B,  
V23C, V32, V32B, V34, V90, V92), (0, 1), (0), (0-33600), (0), (0-  
56000)  
+MS? Reports current options in the format mod, automode, 0, max_rate,  
0, max_rx_rate. Example: +MS: V92, 1, 0, 33600, 0, 56000.  
Subparameters  
mod Specifies the preferred modulation (automode enabled) or the  
modulation to use in originating or answering a connection  
(automode disabled). The default is V92.  
mod  
Modulation  
Possible rates (bps)1  
V922  
V.92  
56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,  
45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,  
34667, 33333, 32000, 30667, 29333, or 28000  
V903  
V34  
V.90  
V.34  
56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,  
45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,  
34667, 33333, 32000, 30667, 29333, or 28000  
33600, 31200, 28800, 26400, 24000, 21600,19200, 16800,  
14400, 12000, 9600, 7200, 4800, or 2400  
V32B  
V32  
V.32bis  
V.32  
14400, 12000, 9600, 7200, or 4800  
9600 or 4800  
2400 or 1200  
1200  
V22B  
V22  
V.22bis  
V.22  
V23C  
V21  
V.23  
1200  
V.21  
300  
Bell212A  
Bell103  
Bell 212A  
Bell 103  
1200  
300  
Notes:  
1. See optional <automode>, <max_rate>, and <max_RX_rate> subparameters.  
2. Selects V.92 modulation as first priority. If a V.92 connection cannot be established,  
the modem attempts V.90, V.34, V.32bis, etc.  
3. Selects V.90 modulation as first priority. If a V.90 connection cannot be established,  
the modem attempts V.34, V.32bis, etc.  
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automode An optional numeric value that enables or disables automatic  
modulation negotiation using V.8 bis/V.8 or V.32 bis Annex A.  
Automode is disabled if values are specified for the max_rate  
and max_rx_rate parameters. The options are:  
0
1
Disable automode  
Enable automode (default)  
max_rate An optional number that specifies the highest rate at which the  
modem may establish an upstream (transmit) connection. The  
value is decimal coded in units of bps, for example, 33600  
specifies the highest rate to be 33600 bps.  
0
Maximum rate determined by the modulation selected in mod  
(default).  
30033600 Maximum rate value limited by the modulation selected in  
mod. For valid max_rate values for each mod value, see the  
following table.  
mod value  
Valid max_rate values (bps)  
V92, V90, V34  
33600, 31200, 28800, 26400, 24000, 21600,19200, 16800,  
14400, 12000, 9600, 7200, 4800, 2400  
V32B  
19200, 16800, 14400, 12000, 9600, 7200, 4800  
V32  
14400, 12000, 9600, 7200, 4800  
V22B  
2400  
1200  
300  
V22, V23C, Bell212A  
V21, Bell103  
max_rx_rate An optional number that specifies the highest rate at which the  
modem may establish a downstream (receive) connection. The  
value is decimal coded in units of bps, e.g., 28800 specifies the  
highest rate to be 28800 bps.  
0
Maximum rate determined by the modulation selected in mod  
(default).  
30056000 Maximum rate value limited by the modulation selected in mod.  
See Possible ratesin the mod table.  
Command: +PCW=n Call Waiting Enable  
Values:  
n = 0, 1, or 2  
Default:  
0
Description:  
Controls the action to be taken upon detection of a call waiting  
tone in V.92 mode. Values specified by this command are not  
modified when an AT&F command is issued.  
+PCW=0 Toggles V.24 Circuit 125 and collects Caller ID if enabled by  
+VCID  
+PCW=1 Hangs up  
+PCW=2 Ignores V.92 call waiting  
+PCW=? Displays the allowed values  
+PCW?  
Displays the currrent value  
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Command: +PIG=n PCM Upstream Ignore  
Values:  
n = 0 or 1  
Default:  
1
Description:  
Controls the use of PCM upstream during V.92 operation.  
PCM upstream allows faster upload speeds to a V.92 server.  
+PIG=0 Disables PCM upstream  
+PIG=1 Enables PCM upstream  
+PIG=?  
+PIG?  
Displays the allowed values  
Displays the currrent value  
Command: +PMH=n Modem on Hold Enable  
Values:  
n = 0 or 1  
Default:  
1
Description:  
Controls whether modem on hold procedures are enabled dur-  
ing V.92 operation. Normally controlled by a modem on hold  
program. Values specified by this command are not modified  
when an AT&F command is issued.  
+PMH=0 Enables V.92 modem on hold  
+PMH=1 Disables V.92 modem on hold  
+PMH=? Displays the allowed values  
+PMH? Displays the currrent value  
Command: +PMHF V.92 Modem Hook Flash  
Values:  
n/a  
Default:  
n/a  
Description:  
Causes the DCE to go on-hook for a specified period of time,  
and then return off-hook for at least a specified period of time.  
The specified period of time is normally one-half second, but  
may be governed by national regulations. ERRORis re-  
turned if MOH is not enabled.  
Command: +PMHR=n Modem on Hold Initiate  
Values:  
n = 013  
Default:  
0
Description:  
Determines if the modem will accept a V.92 Modem on Hold  
(MOH) request and will set the MoH timeout. Valid only if  
MOH is enabled and the modem is off-hook or in data mode.  
Otherwise, ERROR will be returned.  
+PMHR=0 Deny MOH request  
+PMHR=1 Grant MOH request with 10 second timeout  
+PMHR=2 Grant MOH request with 20 second timeout  
+PMHR=3 Grant MOH request with 30 second timeout  
+PMHR=4 Grant MOH request with 40 second timeout  
+PMHR=5 Grant MOH request with 1 minute timeout  
+PMHR=6 Grant MOH request with 2 minute timeout  
+PMHR=7 Grant MOH request with 3 minute timeout  
+PMHR=8 Grant MOH request with 4 minute timeout  
+PMHR=9 Grant MOH request with 6 minute timeout  
+PMHR=10 Grant MOH request with 8 minute timeout  
+PMHR=11 Grant MOH request with 12 minute timeout  
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+PMHR=12 Grant MOH request with 16 minute timeout  
+PMHR=13 Grant MOH request with indefinite timeout  
+PMHR=? Displays the allowed values  
+PMHR?  
Displays the currrent value  
Command: +PMHT=n Modem on Hold Timer  
Values:  
n = 013  
Default:  
0
Description:  
Determines if the modem will accept a V.92 Modem on Hold  
(MOH) request and will set the MoH timeout.  
+PMHT=0 Deny MOH request  
+PMHT=1 Grant MOH request with 10 second timeout  
+PMHT=2 Grant MOH request with 20 second timeout  
+PMHT=3 Grant MOH request with 30 second timeout  
+PMHT=4 Grant MOH request with 40 second timeout  
+PMHT=5 Grant MOH request with 1 minute timeout  
+PMHT=6 Grant MOH request with 2 minute timeout  
+PMHT=7 Grant MOH request with 3 minute timeout  
+PMHT=8 Grant MOH request with 4 minute timeout  
+PMHT=9 Grant MOH request with 6 minute timeout  
+PMHT=10 Grant MOH request with 8 minute timeout  
+PMHT=11 Grant MOH request with 12 minute timeout  
+PMHT=12 Grant MOH request with 16 minute timeout  
+PMHT=13 Grant MOH request with indefinite timeout  
+PMHT=? Displays the allowed values  
+PMHT?  
Displays the currrent value  
Command: +PQC=n Quick Connect Control  
Values:  
n = 0, 1, 2, or 3  
Default:  
0
Description:  
Controls the V.92 shortened Phase 1 and Phase 2 startup proce-  
dures (quick connect). When line conditions are stable, quick  
connect results in shortened connect times; however, significant  
fluctuation in line conditions from call to call can result in longer  
connect times, in which case it may be advisable to disable  
quick connect. The +PQC command is interactive with S109.  
+PQC=0 Enables Short Phase 1 and Short Phase 2 (Quick Connect)  
+PQC=1 Enables Short Phase 1  
+PQC=2 Enables Short Phase 2  
+PQC=3 Disables Short Phase 1 and Short Phase 2  
+PQC=? Displays the allowed values  
+PQC?  
Displays the currrent value  
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Command: +VCID=n Caller ID Selection  
Values:  
n = 0, 1, or 2  
Default:  
0
Description:  
Enables Caller ID detection and configures the reporting and  
presentation of the Caller ID data that is detected after the first  
ring. The reported data includes the date and time of the call,  
the caller's name and number, and a message. Set S0=2.  
+VCID=0 Disables Caller ID  
+VCID=1 Enables Caller ID with formatted data  
+VCID=2 Enables Caller ID with unformatted data  
+VCID=? Displays the allowed values  
+VCID? Displays the currrent value  
Command: +VDR=x, y Distinctive Ring Report  
Values:  
x = 0, 1 Distinctive Ring report control. See description.  
y = 0255 Minimum ring interval in 100 ms units. See description.  
0, 0  
Default:  
Description:  
Enables reporting of ring cadence information to the DTE and  
specifies the minimum ring cadence that will be reported.  
The report format is one line per silence period and one line  
per ring period. The length of the silence period is in the form  
DROF=number in units of 100 ms<CR><LF>, and the length of  
the ring is in the form DRON=number in units of 100 ms<CR>  
<LF>. The modem may produce a Ring event code after the  
DRON message if enabled by the y parameter. The y parameter  
must be set to a value equal to or smaller than the expected  
ring cadence in order to pass the report to the DTE.  
+VDR=0, n/a Disables Distinctive Ring cadence reporting.  
+VDR=1, 0  
Enables Distinctive Ring cadence reporting. Other call progress  
result codes (including RING) are reported as normal.  
Enables Distinctive Ring cadence reporting. The RING result  
code is reported after the falling edge of the ring pulse (i.e., after  
the DRON report).  
+VDR=1, >0  
+VDR=?  
+VDR?  
Displays the allowed values.  
Displays the currrent value.  
Command:  
Values:  
Default:  
#Sx Enter Setup Password  
x= password (18 characters, case sensitive)  
MTSMODEM  
Description:  
Enters the remote configuration setup password.  
Command:  
Values:  
Default:  
#S=x Store Setup Password  
x= password (18 characters, case sensitive)  
MTSMODEM  
Description:  
Stores a new remote configuration setup password.  
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Command: +++AT<CR> Escape Sequence  
Values:  
n/a  
Description:  
Puts the modem in command mode (and optionally issues a  
command) while remaining online. Type +++AT and up to six  
command characters, then press ENTER. Used mostly to issue  
the hang-up command: +++ATH<CR>.  
Command: %%%AT<CR> Remote Configuration Escape Sequence  
Values:  
n/a  
Description:  
Initiates remote configuration mode while online with remote  
modem. The remote configuration escape character (%) is de-  
fined in register S13.  
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4 AT Commands, S-Registers, and Result Codes  
S-Registers  
Certain modem values, or parameters, are stored in memory locations called S-registers.  
Use the S command to read or to alter the contents of S-registers (see previous section).  
Register Unit  
Range Default Description  
S0  
1 ring  
0, 1255  
0
Sets the number of rings until the modem  
answers. ATS0=0 disables autoanswer com-  
pletely. Range varies by country. Set S0=2  
for Caller ID.  
S1  
S2  
1 ring  
0255  
0
Counts the rings that have occurred.  
decimal 0255  
decimal 0127  
decimal 0127  
43 (+)  
Sets ASCII code for the escape sequence char-  
acter. Values greater than 127 disable escape.  
S3  
13 (^M) Sets the ASCII code for the carriage return  
character.  
S4  
S5  
10 (^J) Sets the ASCII code for the line feed character.  
decimal 032,  
8 (^H) Sets the ASCII code for the backspace char-  
acter. Values over 32 disable backspace.  
33127  
S6  
S7  
seconds 265*  
2*  
50*  
2
Sets the time the modem waits after it goes  
off-hook before it begins to dial the telephone  
number.  
seconds 1255*  
Sets the time the modem waits for a carrier  
signal before aborting a call. Also sets the  
wait-for-silence time for the @ dial modifier.  
S8  
S9  
seconds 265  
Sets the length of a pause caused by a comma  
character in a dialing command.  
decimal 0, 1127  
37 (%) Sets ASCII code for remote configuration  
escape character. S9=0 disables remote  
configuration.  
S10  
100 ms 20255  
20  
Sets how long a carrier signal must be lost  
before the modem disconnects.  
S11  
S28  
S30  
1 ms  
50150*  
95*  
1
Sets spacing and duration of dialing tones.  
decimal 0, 1255  
0 disables, 1255 enables V.34 modulation.  
1 minute 0, 1255  
0
Sets the time the modem waits before it dis-  
connects when no data is sent or received. A  
value of zero disables the timer. See also the  
\T command  
S35  
S36  
decimal 01  
0
7
0 disables, 1 enables the V.25 data calling  
tone, which allows remote data/fax/voice  
discrimination.  
decimal 07  
Specifies the action to take in the event of a  
negotiation failure when error control is se-  
lected. See S48.  
* These values may be different outside North America.  
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Register Unit  
Range Default Description  
S37  
decimal 019  
0
Sets the maximum V.34 upstreamspeed  
at which the modem attempts to connect.  
Value Speed  
0
1
maximum modem speed  
reserved  
2
3
1200/75 bps  
300 bps  
4
reserved  
5
1200 bps  
6
2400 bps  
7
4800 bps  
8
7200 bps  
9
9600 bps  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
12000 bps  
14400 bps  
16800 bps  
19200 bps  
21600 bps  
24000 bps  
26400 bps  
28800 bps  
31200 bps  
33600 bps  
S38  
decimal 023  
1
Sets the maximum 56K downstreamspeed  
at which the modem attempts to connect.  
The default maximum speed is 56K bps.  
Note: When using V.34 or V.32 client-to-client  
connections in poor conditions, setting  
S38=0 may result in better performance.  
Value Rate  
0
1
2
3
4
5
6
7
8
56K disabled  
56K autorate  
28000 bps  
29333 bps  
30666 bps  
32000 bps  
33333 bps  
34666 bps  
36000 bps  
37333 bps  
38666 bps  
40000 bps  
41333 bps  
42666 bps  
44000 bps  
45333 bps  
46666 bps  
48000 bps  
49333 bps  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
41  
 
MultiModemZPX User Guide  
4 AT Commands, S-Registers, and Result Codes  
Register Unit  
Range Default Description  
19  
20  
21  
22  
23  
50666 bps  
52000 bps  
53333 bps  
54666 bps  
56000 bps  
S42  
S48  
decimal 01  
1
7
Enables/disables the 56K auto rate. When  
56K auto is disabled, fallback to V.34 is also  
disabled. 0 = disable; 1 = enable.  
decimal 7 or 128  
Enables (7) or disables (128) LAPM negotia-  
tion. The following table lists the S36 and  
S48 configuration settings for certain types  
of connections.  
S48=7  
LAPM or hangup  
LAPM or async  
S48=128  
Do not use  
Async  
S36=0, 2  
S36=1, 3  
S36=4, 6  
S36=5, 7  
LAPM, MNP, or hangup MNP or hangup  
LAPM, MNP, or aysnc MNP or async  
S89  
seconds 0, 5255  
0
6
Sets the inactivity time in the off-line com-  
mand mode before the modem goes into  
standby mode. A value of 0 disables stand-  
by mode; values of 14 set the value to 5.  
S108  
decimal 03, 6, 7  
Selects the 56K digital loss if using the modem  
thru a PBX line. The default value is -6 dB  
loss, the value used when calling from a  
typical POTS line long distance.  
Value Digital loss  
0
-0 dB digital loss, no robbed-bit  
signaling  
1
2
3
6
7
-3 dB PBX digital loss  
-2 dB digital loss  
-3 dB digital loss  
-6 dB digital loss  
-0 dB digital loss with robbed-bit  
signaling  
S109  
decimal 062, even 18  
Selects the PCM (56K) operating mode.  
numbers  
Interactive with the +PQC= command.  
Bit  
0
1
56K mode  
Reservedalways 0  
Enable V.90  
2
3
4
Enable quick connect (phase 1)  
Enable PCM upstream  
Enable V.92  
5
Enable quick connect (phase 2)  
42  
 
MultiModemZPX User Guide  
4 AT Commands, S-Registers, and Result Codes  
Result Codes  
In command mode your modem can send responses called result codes to your com-  
puter. Result codes are used by communications programs and can also appear on  
your monitor.  
Terse  
Verbose  
Description  
0
OK  
Command executed  
1
2
CONNECT  
RING  
Modem connected to line  
Ring signal detected  
3
4
NO CARRIER  
ERROR  
Carrier signal lost or not detected  
Invalid command  
5
6
7
CONNECT 1200 *  
NO DIALTONE  
BUSY  
Connected at 1200 bps  
No dial tone detected  
Busy signal detected  
8
NO ANSWER  
No answer at remote end  
Connected at 2400 bps  
10  
11  
12  
13  
14  
24  
25  
26  
40  
55  
56  
57  
58  
59  
60  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
CONNECT 2400 *  
CONNECT 4800 *  
CONNECT 9600 *  
CONNECT 14400 *  
CONNECT 19200 *  
CONNECT 7200 *  
CONNECT 12000 *  
CONNECT 16800 *  
CONNECT 300 *  
CONNECT 21600 *  
CONNECT 24000 *  
CONNECT 26400 *  
CONNECT 28800 *  
CONNECT 31200 *  
CONNECT 33600 *  
CONNECT 32000 *  
CONNECT 34000 *  
CONNECT 36000 *  
CONNECT 38000 *  
CONNECT 40000 *  
CONNECT 42000 *  
CONNECT 44000 *  
CONNECT 46000 *  
CONNECT 48000 *  
CONNECT 50000 *  
CONNECT 52000 *  
CONNECT 54000 *  
CONNECT 56000 *  
Connected at 4800 bps  
Connected at 9600 bps  
Connected at 14400 bps  
Connected at 19200 bps  
Connected at 7200 bps  
Connected at 12000 bps  
Connected at 16800 bps  
Connected at 300 bps  
Connected at 21600 bps  
Connected at 24000 bps  
Connected at 26400 bps  
Connected at 28800 bps  
Connected at 31200 bps  
Connected at 33600 bps  
Connected at 32000 bps, 56K rate  
Connected at 34000 bps, 56K rate  
Connected at 36000 bps, 56K rate  
Connected at 38000 bps, 56K rate  
Connected at 40000 bps, 56K rate  
Connected at 42000 bps, 56K rate  
Connected at 44000 bps, 56K rate  
Connected at 46000 bps, 56K rate  
Connected at 48000 bps, 56K rate  
Connected at 50000 bps, 56K rate  
Connected at 52000 bps, 56K rate  
Connected at 54000 bps, 56K rate  
Connected at 56000 bps, 56K rate  
* When the extended result code configuration option is enabled, one of the following codes is append-  
ed to the result code, depending on the type of error control connection:  
V42bis V.42 error control (LAP-M) and V.42bis data compression  
V42 V.42 error control (LAP-M) only  
MNP5 MNP 4 error control and MNP 5 data compression  
MNP4 MNP 4 error control only  
NoEC No error control protocol  
43  
 
MultiModemZPX User Guide  
4 AT Commands, S-Registers, and Result Codes  
Terse  
Verbose  
DELAYED  
Description  
88  
Delay is in effect for the dialed number  
89  
BLACKLISTED  
Dialed number is blacklisted  
90  
BLACKLIST FULL  
CONNECT 28000 *  
CONNECT 29333 *  
CONNECT 30666 *  
CONNECT 33333 *  
CONNECT 34666 *  
CONNECT 37333 *  
CONNECT 38666 *  
CONNECT 41333 *  
CONNECT 42666 *  
CONNECT 45333 *  
CONNECT 46666 *  
CONNECT 49333 *  
CONNECT 50666 *  
CONNECT 53333 *  
CONNECT 54666 *  
Blacklist is full  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
Connected at 28000 bps, 56K rate  
Connected at 29333 bps, 56K rate  
Connected at 30666 bps, 56K rate  
Connected at 33333 bps, 56K rate  
Connected at 34666 bps, 56K rate  
Connected at 37333 bps, 56K rate  
Connected at 38666 bps, 56K rate  
Connected at 41333 bps, 56K rate  
Connected at 42666 bps, 56K rate  
Connected at 45333 bps, 56K rate  
Connected at 46666 bps, 56K rate  
Connected at 49333 bps, 56K rate  
Connected at 50666 bps, 56K rate  
Connected at 53333 bps, 56K rate  
Connected at 54666 bps, 56K rate  
* When the extended result code configuration option is enabled, one of the following codes is append-  
ed to the result code, depending on the type of error control connection:  
V42bis V.42 error control (LAP-M) and V.42bis data compression  
V42 V.42 error control (LAP-M) only  
MNP5 MNP 4 error control and MNP 5 data compression  
MNP4 MNP 4 error control only  
NoEC No error control protocol  
44  
 
5
Remote  
Configuration  
 
MultiModemZPX User Guide  
5 Remote Configuration  
Introduction  
Remote configuration is a network management tool that allows you to configure  
MT5634ZPX and MT5634ZBA modems anywhere in your network from one location.  
With password-protected remote configuration, you can issue AT commands to a  
remote modem for maintenance or troubleshooting as if you were on site.  
Basic Procedure  
The following steps are valid regardless of whether the connection is established by  
the local or the remote Multi-Tech modem.  
Note: For this procedure, the remote computer must be running, and a communication  
program must be ready for a data connection, which will be indicated by a lighted  
TR indicator on the front of the modem.  
1. Establish a data connection with a remote MT5634ZPX or MT5634ZBA modem.  
2. Send three remote configuration escape characters followed by AT and the setup  
password, and press ENTER. Example: %%%ATMTSMODEM. You have four  
tries to enter the correct password before being disconnected. If the password is  
correct, the remote modem responds with OK.  
3. Type AT commands to configure the remote modem.  
4. When you have finished configuring the remote modem, save the new  
configuration by typing AT&W0 and pressing ENTER.  
5. Type ATO and press ENTER to exit remote configuration. You can now break the  
connection in the normal way.  
Setup  
Multi-Tech modems are shipped with a default setup password (MTSMODEM).  
Because anyone who has the User Guide knows the default setup password, you should  
change the password and possibly also the remote configuration escape character.  
To Change the Setup Password  
1. Open a data communications program such as HyperTerminal or PhoneTools.  
2. In the terminal window, type AT#SMTSMODEM (or AT#Sxxxxxxxx if you have  
replaced the MTSMODEM password with xxxxxxxx) and press ENTER. The modem  
responds with OK if the setup password is correct, and ERROR if it is wrong.  
3. To change the password, type AT#S=xxxxxxxx, where xxxxxxxx stands for the  
password, and then press ENTER. The password can include any keyboard  
character, and can be up to eight characters long. The modem responds with OK.  
CAUTION: Passwords are case-sensitive. The next time you enter the password,  
it must be in the same case as you set it up.  
46  
 
MultiModemZPX User Guide  
5 Remote Configuration  
4. The new password is saved automatically. You can now either enter more AT  
commands or exit the data communications program. The next time you wish to  
set up the modem, you must use the new password.  
To Change the Remote Escape Character  
To further improve security, you can change a remote modems remote configuration  
escape character either locally or remotely. The remote configuration escape charac-  
ter is stored in register S9. The factory default is 37, which is the ASCII code for the  
percent character (%). Setting S9 to 0 (zero) disables remote configuration entirely.  
CAUTION: If you do this remotely, you wont be able to change it back remotely.  
1. Establish a remote configuration link with the remote modem as described in  
Basic Procedure.”  
2. Type ATS9=n, where n is the ASCII code for the new remote configuration es-  
cape character, and then press ENTER.  
3. Save the new value by typing AT&W and pressing ENTER.  
4. Type ATO and press ENTER to exit remote configuration.  
47  
 
6
Solving  
Problems  
 
MultiModemZPX User Guide  
6 Solving Problems  
Introduction  
Your modem was thoroughly tested at the factory before it was shipped. If you are  
unable to make a successful connection, or if you experience data loss or garbled  
characters during your connection, it is possible that the modem is defective. How-  
ever, it is more likely that the source of your problem lies elsewhere. The following  
symptoms are typical of problems you might encounter:  
The modem does not respond to commands.  
The modem cannot connect when dialing.  
The modem disconnects while online.  
The modem cannot connect when answering.  
File transfer is slower than it should be.  
Data is being lost.  
There are garbage characters on the monitor.  
The modem doesnt work with Caller ID.  
Fax and data software cant run at the same time.  
The voice functions dont work.  
If you experience problems, please check the following possibilities before calling  
Technical Support (see Appendix D).  
The Modem Does Not Respond to Commands  
Make sure you are issuing the modem commands from data communications  
software, either manually in terminal mode or automatically by configuring the  
software. (You cannot send commands to the modem from the DOS prompt.)  
Make sure you are in terminal mode in your data communications program, then  
type AT and press ENTER. If you get an OK response from your modem, your  
connections are good and the problem likely is in the connection setup in your  
communications software.  
If you dont get an OK, make sure you have properly configured the port in your  
communications program. Most legacy (prior to Windows 95) communications  
programs connect to the COM port when the software loads and remain connect-  
ed until the program terminates. Some programs can disconnect without exiting  
the program. If this is the case, try issuing the softwares connection command.  
If more than one communications program is open, they may conflict with each  
other. Make sure all other communications programs are closed, and then try to  
make the connection again.  
If you are using DOS or Windows 3.1 communication software, make sure the  
initialization string includes &F as the first command, to cancel any leftover’  
command that could affect the modems operation.  
Your communication software settings might not match the port the modem is  
connected to. Make sure the COM port you chose during setup matches the COM  
port set in your communications software. See Chapter 2 for more information.  
49  
 
MultiModemZPX User Guide  
6 Solving Problems  
Another expansion card, such as a sound or game card, might be using the same  
COM port, memory address, or interrupt request (IRQ) as your modem. See  
Chapter 2 for information on verifying the configuration for your operating sys-  
tem. Look for conflicts with other devices installed on your computer. Resources  
are assigned at power-up by the computers BIOS. If the resources assigned to  
the MultiModemZPX-PCI conflict with the resources of another device, the re-  
sources of the second device have to be changed. Select the port the conflicting  
device is on and change it to resolve the conflict. If you need to change switches  
or jumpers on the conflicting device, refer to the devices documentation.  
If you have another MultiModemZPX-PCI, install it and try to make a connec-  
tion.  
The modem might have a problem beyond the scope of this user guide. If you  
have another Multi-Tech modem, try swapping modems. If the problem goes  
away, call Technical Support for assistance (see Appendix D).  
The Modem Cannot Connect When Dialing  
Reasons why the MultiModemZPX-PCI may fail to connect include:  
lack of a physical connection to the telephone line.  
a wrong dial tone.  
a busy signal.  
a wrong number.  
no modem at the other end.  
a faulty modem, computer, or software at the other end.  
incompatibility between modems  
poor line conditions.  
You can narrow the list of possibilities by using extended result codes. Extended re-  
sult codes are enabled by default. If they have been disabled, include V1X4 in the  
modems initialization string, or in terminal mode enter ATV1X4 and press ENTER.  
When you dial again, the modem reports the calls progress.  
If the modem reports NO DIALTONE, check that the modems telephone line ca-  
ble is connected to both the modems LINE jack (not the PHONE jack) and the  
telephone wall jack. If the cable looks secure, try replacing it.  
If that doesnt work, the problem might be in your buildings telephone installa-  
tion. To test the building installation, plug a telephone into your modems  
telephone wall jack and listen for a dial tone. If you hear a dial tone, your modem  
might be installed behind a corporate phone system (PBX) with an internal dial  
tone that sounds different from the normal dial tone. In that case, the modem  
might not recognize the dial tone and might treat it as an error. Check with your  
PBX personnel or the PBX system manual to see if you can change the internal dial  
tone. If you cant, change your modems initialization string to replace X4 with  
X3, which will cause the modem to ignore dial tones (note, however, that X3 is  
not allowed in some countries, such as France and Spain).  
If the modem reports BUSY, the other number might be busy. Try again later.  
BUSY can also indicate that you failed to add a 9, prefix to the phone number if  
you must dial 9 for an outside line.  
50  
 
MultiModemZPX User Guide  
6 Solving Problems  
If you must dial 9 to get an outside line, the easiest way to dial it automatically  
using legacy software is to include it in the modems dial prefix, e.g., ATDT9,.  
Note the comma, which inserts a pause before the number is dialed. By inserting  
9, into the dial prefix, you do not have to include it in each directory entry.  
To change the dial prefix in Windows HyperTerminal, select Connect from the  
Call menu, click Dialing Properties, and type 9 in the local and long distance  
boxes.  
If the modem reports NO ANSWER, the other system has failed to go off-hook, or  
you might have dialed a wrong number. Check the number.  
If the modem reports NO CARRIER, the phone was answered at the other end,  
but no connection was made. You might have dialed a wrong number, and a per-  
son answered instead of a computer, or you might have dialed the correct  
number but the other computer or software was turned off or faulty. Check the  
number and try again, or try calling another system to make sure your modem is  
working. Also, try calling the number on your telephone. If you hear harsh  
sounds, then there is a modem at the other end. In that case, the modems might  
be having problems negotiating because of incompatibilities or line noise. Try the  
call again, connecting at a lower speed by setting register S37 to a lower rate (for  
example, by typing ATS37=11 in the terminal window and pressing ENTER).  
Poor line conditions can also affect the connection. When using V.34 or V.32 cli-  
ent-to-client connections in poor conditions, setting S38=0 may result in better  
performance.  
The Modem Disconnects While Online  
If you have Call Waiting on the same phone line as your modem, it can interrupt  
your connection when someone tries to call you. If you have Call Waiting, dis-  
able it before each call. In most telephone areas in North America, you can  
disable Call Waiting by preceding the telephone number with *70 (but first check  
with your local telephone company).  
You can automatically disable Call Waiting by including the disabling code in  
the modems dial prefix (e.g., ATDT*70,note the comma, which inserts a pause  
before the number is dialed). For example, in Windows select Start | Settings |  
Control Panel, and then Modems. In the Modems Properties dialog box, select  
Multi-Tech MT5634ZPX-PCI, and then click Dialing Properties. Check This lo-  
cation has call waiting, and then select the correct code for your phone service.  
If you have extension phones on the same line as your modem, you or someone  
else can interrupt the connection by picking up another phone. If this is a fre-  
quent problem, disconnect the extension phones before using the modem, or  
install another phone line especially for the modem.  
Check that the phone cord between the modems LINE jack and the wall jack is  
undamaged and firmly connected to both.  
You might have had a poor connection because of line conditions or the problem  
might have originated on the other end of the line. Try again.  
Your ISP might have hung up on you because of lack of activity on your part or  
because you exceeded your time limit for the day. Try again.  
51  
 
MultiModemZPX User Guide  
6 Solving Problems  
The Modem Cannot Connect When Answering  
The default DTR Control command (&D2) inhibits autoanswer. To enable au-  
toanswer, change DTR Control to &D0, and make sure &Q0, &Q5, or &Q6 is  
also set. For more information, see the &D command in Chapter 4. For informa-  
tion on changing the modems default configuration, see Step 5: Install and  
Configure Your Softwarein Chapter 2.  
Autoanswer might be disabled. Turn on autoanswer in your communications  
program or send the command ATS0=1 (ATS0=2 if you have Caller ID service)  
to your modem in terminal mode.  
File Transfer Is Slower Than It Should Be  
If you are using a slow transfer protocol, such as Xmodem, try Zmodem or  
Ymodem/G instead.  
Is your line noisy? If there is static on your line, the modem has to resend many  
blocks of data to insure accuracy. You must have a clean line for maximum speed.  
If you are downloading a compressed file with MNP 5 hardware compression  
enabled, try disabling data compression. The transfer may be marginally slower  
with data compression enabled, because hardware data compression cannot  
compress a file already compressed by an archiving program.  
Does your Internet service provider (ISP) use the same 56K protocol as your mo-  
dem? The default setting of your modem is to connect using either the V.92 or  
the V.90 protocol, depending on which one the ISPs modem is using. If your ISP  
uses the V.90 protocol, the maximum speed you will be able to upload at is  
33,600 bps. Check with your ISP to see which protocols it supports.  
Are you trying to send a file to another client modem? If so, then your maximum  
possible connect speed is 33,600 bps. You can upload at speeds greater than 33,600  
bps only when connected to an ISP that supports the V.92 protocol.  
Try entering the I11 command in online mode or the &V command in command  
mode to display information about the last connection, making a screen print of  
the connection statistics, and checking for parameters that might be unacceptable.  
Data Is Being Lost  
If you are using data compression, set the serial port baud rate to two to six times  
the data rate.  
Make sure the flow control method you selected in your software matches the  
method selected in the modem (see AT commands &K and \Q.)  
Enter the I11 command in online mode or the &V command in command mode  
to display information about the last connection. Then make a screen print of the  
connection statistics, and look for unacceptable parameters.  
52  
 
MultiModemZPX User Guide  
6 Solving Problems  
There Are Garbage Characters on the Monitor  
Your computer and the remote computer might be set to different word lengths,  
stop bits, or parities. If you have connected at 8-N-1, try changing to 7-E-1, or  
vice-versa, using your communication software.  
You might be experiencing line noise. Enable error correction, if it is disabled, or  
hang up and call again; you might get a better connection the second time.  
At speeds above 2400 bps, the remote modem might not use the same transmis-  
sion or error correction standards as your modem. Try connecting at a slower  
speed or disabling error correction. (With no error correction, however, line noise  
can cause garbage characters.)  
Enter the I11 command in online mode or the &V command in command mode  
to display information about the last connection. Then make a screen print of the  
connection statistics, and look for unacceptable parameters.  
The Modem Doesn’t Work with Caller ID  
Caller ID information is transmitted between the first and second rings, so if  
autoanswer is turned off (S0=0) or if the modem is set to answer after only one  
ring (S0=1), the modem will not receive Caller ID information. Check your ini-  
tialization string, and if necessary change it to set the modem to answer after the  
second ring (S0=2).  
Make sure that you have Caller ID service from your telephone company.  
Fax and Data Software Can’t Run at the SameTime  
Communication devices can be accessed by only one application at a time. Under  
DOS or Windows 3.1x, you can run either your fax software or your data com-  
munications software, but not both at the same time, unless you have a special  
communication device management application. In Windows 95 and higher, you  
can have data and fax communication applications open at the same time, but  
they cannot use the same modem at the same time.  
The Voice Functions Don’t Work  
There are several tests that you can perform to verify the voice circuits of the Multi-  
ModemZPX. First, make sure all connecting cablestelephone, microphone, and  
speakerare undamaged and firmly connected to the correct jacks. Then retry  
whatever action was not working. If the problem persists, try the voice mail test; if  
that doesnt work, and if you have a microphone and speaker connected to the  
MultiModemZPX, try the loopback and speakerphone tests, which do not require  
special software.  
53  
 
MultiModemZPX User Guide  
6 Solving Problems  
Voice Mail Test  
Test the MultiModemZPXs voice function by using the included software to set up  
the MultiModemZPX for voice mail. Have an acquaintance call and leave a message,  
and then play it back.  
If your modem does not play sound files in voice mode, go to Windows Control Panel  
and double-click the Multimedia icon. Under the Audio tab, select Modem Wave  
Driver as your preferred device for both playback and recording, then try again.  
Loopback Test  
1. Connect a microphone and speaker to the MultiModemZPX. To avoid feedback,  
make sure the microphone and speaker are well separated; better yet, use a  
headphone instead of a speaker.  
2. Select Start, point to Programs, point to Accessories, and click HyperTerminal.  
3. Click Cancel in the Connection Description dialog box.  
4. In the HyperTerminal terminal window, type AT&&S and press ENTER. This  
command causes input from the microphone to be looped back to the speaker.  
5. Speak into the microphone; you should hear your voice on the speaker or head-  
phone.  
6. Type ATZ and press ENTER to reset the modem.  
Speakerphone Test  
1. Connect a microphone and speaker to the MultiModemZPX.  
2. Select Start, point to Programs, point to Accessories, and click HyperTerminal.  
3. Click Cancel in the Connection Description dialog box.  
4. In the HyperTerminal terminal window, type  
AT+FCLASS=8  
AT+VLS=7  
ATDTxxxxxxx (for xxxxxxx substitute a telephone number)  
5. Speak into the microphone to talk to the person on the other end of the line, and  
listen over the speaker.  
6. Type +++ATH and press ENTER to hang up.  
7. Type ATZ and press ENTER to reset the modem.  
54  
 
Appendixes  
 
MultiModemZPX User Guide  
A Regulatory Compliance  
Appendix A: Regulatory Compliance  
FCC Part 68 Telecom  
1. This equipment complies with part 68 of the Federal Communications Commission  
Rules. On the outside surface of this equipment is a label that contains, among  
other information, the FCC registration number. This information must be pro-  
vided to the telephone company.  
2. The suitable USOC jack (Universal Service Order Code connecting arrangement)  
for this equipment is shown below. If applicable, the facility interface codes  
(FIC) and service order codes (SOC) are shown.  
3. An FCC-compliant telephone cord and modular plug is provided with this  
equipment. This equipment is designed to be connected to the telephone net-  
work or premises wiring using a compatible modular jack that is Part 68 compli-  
ant. See installation instructions for details.  
4. The ringer equivalence number (REN) is used to determine the number of devic-  
es that may be connected to the telephone line. Excessive RENs on the telephone  
line may result in the device not ringing in response to an incoming call. In  
most, but not all, areas the sum of the RENs should not exceed 5.0. To be certain  
of the nuber of devices that may be connected to the line, as determined by the  
total RENs, contact the local telephone company.  
5. If this equipment causes harm to the telephone network, the telephone company  
will notify you in advance that temporary discontinuance of service may be re-  
quired. But if advance notice is not practical, the telephone company will notify  
you as soon as possible. Also, you will be advised of your right to file a complaint  
with the FCC if you believe it is necessary.  
6. The telephone company may make changes in its facilities, equipment, opera-  
tions, or procedures that could affect the operation of the equipment. If this hap-  
pens, the telephone company will provide advance notice in order for you to  
make necessary modifications in order to maintain uninterrupted service.  
7. If trouble is experienced with this equipment (the model of which is indicated  
below) please contact Multi-Tech Systems, Inc. at the address shown below for  
details of how to have repairs made. If the trouble is causing harm to the tele-  
phone network, the telephone company may request you remove the equipment  
from the network until the problem is resolved.  
8. No repairs are to be made by you. Repairs are to be made only by Multi-Tech  
Systems or its licensees. Unauthorized repairs void registration and warranty.  
9. This equipment should not be used on party lines or coin lines.  
10. If so required, this equipment is hearing-aid compatible.  
Manufacturer:  
Trade Name  
Multi-Tech Systems, Inc.  
MultiModemZPX  
Model Number:  
FCC Registration No:  
MT5634ZPX-PCI  
AU7USA-27014-M5-E  
Ringer Equivalence No: 0.4A  
Modular Jack (USOC):  
RJ11C  
56  
 
MultiModemZPX User Guide  
A Regulatory Compliance  
Service Center in USA:  
Multi-Tech Systems, Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
U.S.A.  
(763) 785-3500  
(763) 785-9874 Fax  
FCC Part 15  
This equipment has been tested and found to comply with the limits for a Class B  
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to  
provide reasonable protection against harmful interference in a residential installa-  
tion. This equipment generates, uses, and can radiate radio frequency energy, and if  
not installed and used in accordance with the instructions, may cause harmful inter-  
ference to radio communications. However, there is no guarantee that interference  
will not occur in a particular installation. If this equipment does cause harmful inter-  
ference to radio or television reception, which can be determined by turning the  
equipment off and on, the user is encouraged to try to correct the interference by one  
or more of the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Plug the equipment into an outlet on a circuit different from that to which the  
receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
This device complies with Part 15 of the FCC rules. Operation of this device is sub-  
ject to the following conditions: (1) This device may not cause harmful interference,  
and (2) this device must accept any interference that may cause undesired operation.  
WARNING: Changes or modifications to this unit not expressly approved by the  
party responsible for compliance could void the users authority to operate the  
equipment.  
Fax Branding Statement  
The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to  
use a computer or other electronic device, including fax machines, to send any mes-  
sage unless such message clearly contains the following information:  
Date and time the message is sent  
Identification of the business or other entity, or other individual sending the  
message  
Telephone number of the sending machine or such business, other entity, or  
individual  
This information is to appear in a margin at the top or bottom of each transmitted  
page or on the first page of the transmission. (Adding this information in the margin  
is referred to as fax branding.)  
Since any number of fax software packages can be used with this product, the user  
must refer to the fax software manual for setup details. Typically the fax branding  
information must be entered via the configuration menu of the software.  
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A Regulatory Compliance  
Canadian Limitations Notice  
Notice: The ringer equivalence number (REN) assigned to each terminal device pro-  
vides an indication of the maximum number of terminals allowed to be connected to  
a telephone interface. The termination on an interface may consist of any combination  
of devices subject only to the requirement that the sum of the ringer equivalence  
numbers of all the devices does not exceed 5.  
Notice: The Industry Canada label identifies certificated equipment. This certifica-  
tion means that the equipment meets certain telecommunications network protec-  
tive, operational and safety requirements. The Industry Canada label does not  
guarantee the equipment will operate to the users satisfaction.  
Before installing this equipment, users should ensure that it is permissible to be con-  
nected to the facilities of the local telecommunications company. The equipment  
must also be installed using an acceptable method of connection. The customer  
should be aware that compliance with the above conditions may not prevent degra-  
dation of service in some situations. Repairs to certified equipment should be made  
by an authorized Canadian maintenance facility designated by the supplier. Any re-  
pairs or alterations made by the user to this equipment or equipment malfunctions  
may give the telecommunications company cause to request the user to disconnect  
the equipment.  
Users should ensure for their own protection that the electrical ground connections  
of the power utility, telephone lines and internal metallic water pipe system, if  
present, are connected together. This precaution may be particularly important in  
rural areas.  
Caution: Users should not attempt to make such connections themselves, but should  
contact the appropriate electric inspection authority, or electrician, as appropriate.  
Industry Canada  
This Class B digital apparatus meets all requirements of the Canadian Interference-  
Causing Equipment Regulations.  
Cet appareil numérique de la classe B respecte toutes les exigences du Reglement  
Canadien sur le matériel brouilleur.  
Protection Against Contact with TNV Circuit  
The protective cover is fastened to the modem card by means that will only allow a  
tool to remove the cover.  
Warning: Removal of the protective cover will affect product safety and user safety  
requirements.  
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A Regulatory Compliance  
EMC, Safety, and R&TTE Directive Compliance  
The CE mark is affixed to this product to confirm compliance with the following  
European Community Directives:  
Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws  
of Member States relating to electromagnetic compatibility;  
and  
Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the  
laws of Member States relating to electrical equipment designed for use within  
certain voltage limits;  
and  
Council Directive 1999/5/EC of 9 March 1999 on radio equipment and telecom-  
munications terminal equipment and the mutual recognition of their conformity.  
New Zealand Telecom Warning Notice  
1. The grant of a Telepermit for any item of terminal equipment indicates only that  
Telecom has accepted that the item complies with minimum conditions for con-  
nection to its network. It indicates no endorsement of the product by Telecom,  
nor does it provide any sort of warranty. Above all, it provides no assurance  
that any item will work correctly in all respects with another item of Telepermit-  
ted equipment of a different make or model, nor does it imply that any product  
is compatible with all of Telecoms network services.  
This equipment is not capable under all operating conditions of correct opera-  
tion at the higher speed which it is designated. 33.6 kbps and 56 kbps connec-  
tions are likely to be restricted to lower bit rates when connected to some PSTN  
implementations. Telecom will accept no responsibility should difficulties arise  
in such circumstances.  
2. Immediately disconnect this equipment should it become physically damaged,  
and arrange for its disposal or repair.  
3. This modem shall not be used in any manner which could constitute a nuisance  
to other Telecom customers.  
4. This device is equipped with pulse dialing, while the Telecom standard is DTMF  
tone dialing. There is no guarantee that Telecom lines will always continue to  
support pulse dialing.  
Use of pulse dialing, when this equipment is connected to the same line as other  
equipment, may give rise to bell tinkleor noise and may also cause a false an-  
swer condition. Should such problems occur, the user should not contact the  
Telecom Faults Service.  
The preferred method of dialing is to use DTMF tones, as this is faster than  
pulse (decadic) dialing and is readily available on almost all New Zealand tele-  
phone exchanges.  
5. Warning Notice: No 111or other calls can be made from this device during a  
mains power failure.  
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A Regulatory Compliance  
6. This equipment may not provide for the effective hand-over of a call to another  
device connected to the same line.  
7. Some parameters required for compliance with Telecoms Telepermit require-  
ments are dependent on the equipment (PC) associated with this device. The as-  
sociated equipment shall be set to operate within the following limits for  
compliance with Telecoms Specifications:  
For repeat calls to the same number:  
There shall be no more than 10 call attempts to the same number within any  
30-minute period for any single manual call initiation, and  
The equipment shall go on-hook for a period of not less than 30 seconds be-  
tween the end of one attempt and the beginning of the next attempt.  
For automatic calls to different numbers:  
The equipment shall be set to ensure that automatic calls to different num-  
bers are spaced such that there is no less than 5 seconds between the end of  
one call attempt and the beginning of another.  
For automatically answered incoming calls:  
The equipment shall be set to ensure that calls are answered between 3 and  
30 seconds of receipt of ringing.  
8. For correct operation, total of the RNs of all devices connected to a single line at  
any time should not exceed 5.  
South African Notice  
This modem must be used in conjunction with an approved surge protection device.  
International Modem Restrictions  
Some dialing and answering defaults and restrictions may vary for international  
modems. Changing settings may cause a modem to become non-compliant with  
national telecom requirements in specific countries. Also note that some software  
packages may have features or lack restrictions that may cause the modem to be-  
come non-compliant.  
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MultiModemZPX User Guide  
B Technical Specifications  
Appendix B: Technical Specifications  
The MultiModemZPX modem meets the following specifications:  
Trade Name  
MultiModemZPX™  
MT5634ZPX-PCI  
Model Number  
Build Number  
MT5634ZPX-PCI-V92  
Server-to-Client  
Data Rates  
56K speeds when accessing a V.90 or V.92 server (actual  
speed depends on server capabilities and line conditions)*  
Client-to-Server  
Data Rates  
Up to 48Kbps when accessing a V.92 server (actual speed  
depends on server capabilities and line conditions); other-  
wise the same as client-to-client data rates.  
Client-to-Client  
Data Rates  
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800,  
14400, 12000, 9600, 7200, 4800, 2400, 1200, 0-300 bps  
Fax Data Rates  
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800,  
14400, 12000, 9600, 7200, 4800, 2400, 300 bps  
Data Format  
Serial, binary, asynchronous  
Modem Compatibility ITU-T V.92, V.90, V.34 enhanced, V.34, V.32bis, V.32,  
V.22bis, V.22; Bell 212A and 103/113; ITU-T V.21 & V.23;  
V.42, V.42bis, V.44  
Fax Compatibility  
ITU-T SuperGroup 3, Class 1.0, 2.0, 2.1, T.4, T.30, V.21,  
V.27ter, V.29, V.34, V.17; TIA/EIA 578 Class 1, 2; TR29.2  
Video Compatiblity  
Voice Compatibility  
ITU-T V.80 for H.324 video conferencing  
AT+V/TAM command set  
Voice Mode Sampling Up to 44.100 kHz (down-sampled to 11.025 kHz)  
Error Correction  
ITU-T V.42 (LAP-M or MNP 4)  
Data Compression  
ITU-T V.44 (6:1 throughput), V.42bis (4:1 throughput), MNP  
5 (2:1 throughput)  
Speed Detection  
Automatic speed detection and switching between available  
speeds  
Speed Conversion  
Serial port data rates adjustable to 300, 1200, 2400, 4800,  
9600, 19,200, 38,400, 57,600, and 115,200 bps  
Modes of Operation  
Flow Control  
Fax online modes; full duplex data over dial-up lines; voice  
XON/XOFF (software), RTS/CTS (hardware)  
Intelligent Features  
Plug and play; fully AT command compatible; autodial,  
redial, repeat dial; pulse or tone dial; dial pauses; auto  
answer; adaptive answer; EIA extended automode; adaptive  
line probing; automatic symbol and carrier frequency during  
start-up, retrain, and rate renegotiation; DTMF detection;  
*Though this modem is capable of 56K bps download performance, line impairments, public  
telephone infrastructure and other external technological factors currently prevent maxi-  
mum 56K bps connections.  
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B Technical Specifications  
call status display, auto-parity and data rate selections;  
keyboard-controlled modem options; non-volatile memory;  
remote configuration; DTR dialing; callback security; A-law  
support in 56K modes; 11-bit support; real-time fax  
compression conversion; U.S. Caller ID reporting; quick-  
connect startup.  
Command Buffer  
Transmit Level  
40 characters  
-11 dBm (North America and Pan Euro)varies by country  
setting  
Frequency Stability  
Receiver Sensitivity  
0.01%  
-43 dBm under worst-case conditions  
AGC Dynamic Range 43 dB  
Bus Type  
PCI 2.1  
Connectors  
Two RJ-11 phone jacks, one microphone jack, and one  
speaker jack  
Cables  
One RJ-11 phone cable  
Note: Any cables connected to the computer should be  
shielded to reduce interference.  
Diagnostics  
Power-on self-test (POST) and local analog loop  
Environmental  
Temperature range 0°–50°C (32°–120°F); humidity range  
2090% (non-condensing)  
Storage Temperature  
Power Requirements  
Dimensions  
-10° to +85°C (14°–185°F)  
150 mA @ -5 VDC  
1.8 cm wide × 14.7 cm long ´× 12.2 cm high (0.7" × 5.8" × 4.8")  
Operating Systems  
Tested for use with Windows 95, 98, NT, and 2000, and  
Linux (2.2.x kernal).  
Limited Warranty  
10 years  
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MultiModemZPX User Guide  
C Loopback Tests  
Appendix C: Loopback Tests  
Introduction  
Each time you turn on your modem, it performs an automatic self-test to ensure  
proper operation. Your modem also has three diagnostic tests: local analog loop-  
back, remote digital loopback, and local digital loopback. These ITU-T V.54 loop-  
back tests isolate telephone circuit and transmission problems.  
In a loopback test, data from your computer loops through the circuits of your mo-  
dem and/or a remote modem before it appears on your monitor. When the loop has  
been completed, the data on your PCs monitor should match the original data.  
The local analog loopback test allows you to verify that the modems transmitter  
and receiver circuits are functioning properly.  
The remote digital loopback test allows you to verify that the local computer or ter-  
minal, the serial ports, the local and remote modems, and the transmission line be-  
tween them are functioning properly.  
The local digital loopback test allows you to verify that the remote computer or ter-  
minal, the serial ports, the local and remote modems, and the transmission line be-  
tween them are functioning properly.  
Local Analog Loopback Test (V.54 Loop 3)  
In this test, data from your computer or terminal is sent to your modems transmit-  
ter, converted into analog form, looped back to the modems receiver, converted into  
digital form, and then sent to your monitor for verification. No connection to the  
phone line is required.  
AT&T1  
CONNECT 9600  
UUUUUUUUUUUU  
Digital Analog  
Computer or Terminal  
Local MultiModem  
Figure C-1. Local analog loopback test.  
Test procedure  
1. Using a communications program, set the baud rate to 9600 and go into terminal  
mode.  
2. Type AT&T1 and press ENTER. This places your modem in analog loopback  
mode in the originate mode. A CONNECT message should appear on your dis-  
play. The modem is now out of command mode and in a pseudo-online mode.  
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C Loopback Tests  
3. Enter characters from your keyboard. For this test, typing multiple uppercase U  
characters is a good way to send an alternating test pattern of binary ones and  
zeros. The characters entered should be displayed on your monitor.  
4. To exit the test, type the escape sequence +++AT and press ENTER. This puts the  
modem in online command mode. Then type either AT&T or ATH to return to  
command mode.  
5. Your modem passes this test if the characters received on your monitor are the  
same as the characters entered from your keyboard. If different characters ap-  
pear on your monitor, your modem is probably causing the problem, though it  
could also be your computer. If your modem passes this test, but you are receiv-  
ing errors while on line, the remote modem or the phone line could be at fault.  
Remote Digital Loopback Test (V.54 Loop 2)  
The remote digital loopback test tests the phone lines and the circuits of both your  
local modem and a remote modem. In this test, your modem must be on line with  
another modem that is set up to respond to a request for remote digital loopback.  
(Note that some modems might not support remote digital loopback or might have  
it disabled.) Data from your computer or terminal is transmitted through your mo-  
dem and over the phone line to the remote modem, where it is then looped back to  
your modem.  
AT&T6  
OK  
AT&T6  
OK  
UUUUUUUUUUU  
UUU  
Digital Analog  
Analog Digital  
Computer or Terminal Local MultiModem  
Remote MultiModem Computer or Terminal  
Figure C-2. Remote digital loopback test.  
Test procedure  
1. Arrange to have &T6 set on the remote test modem.  
2. Using your communication program, set the baud rate to 9600 and go into ter-  
minal mode. Type AT and press ENTER; you should get an OK message. Type  
AT\N and press ENTER to disable error correction.  
3. Dial the remote modem and establish your online connection.  
4. Type the escape sequence +++AT and press ENTER to bring your modem into  
online command mode.  
5. Type AT&T6 and press ENTER. The local modem responds to this command by  
transmitting an unscrambled marking signal, which causes the remote modem  
to place itself in digital loopback mode. Then the local modem exits online com-  
mand mode and enters data mode.  
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C Loopback Tests  
6. Enter data from your keyboard. For this test, typing multiple uppercase U char-  
acters is a good way to send an alternating test pattern of binary ones and zeroes.  
Data received by the remote modem enters its analog receiver, is converted to  
digital data, is reconverted into analog, and then is transmitted back to your  
modem. Your modem passes this test if the characters received on your monitor  
are the same as the characters entered from your keyboard.  
7. To exit the test, type the escape sequence +++AT and press ENTER. This puts the  
modem in online command mode. The modem should respond with an OK mes-  
sage. If you wish to stay on line with the remote modem for normal data trans-  
mission, type AT&T and press ENTER to exit the test, then type ATO and press  
ENTER to return on line. If you wish to terminate the call, type ATH and press  
ENTER to hang up.  
Local Digital Loopback Test (V.54 Loop 2)  
The local digital loopback test is identical to the remote digital loopback test with  
one exception. Instead of using your modem to signal a remote modem to place it-  
self in digital loopback mode, your modem is placed in digital loopback mode while  
the remote modem is not. Data is entered and transmitted from the remote modem,  
sent across the phone line to your modem, and looped back to the remote modem.  
AT&T3  
OK  
UUUUUUUUUUU  
UUU  
Digital Analog  
Analog Digital  
Computer or Terminal Local MultiModem  
Remote MultiModem Computer or Terminal  
Figure C-3. Local digital loopback test.  
Test procedure  
1. Using your communication program, set the baud rate to 9600 and go into ter-  
minal mode. Type AT and press ENTER; you should get an OK message.  
2. Dial the remote modem and establish your online connection.  
3. Type the escape sequence +++AT and press ENTER to bring your modem into  
online command mode.  
4. Type AT&T3 and press ENTER. Once you receive an OK message from your mo-  
dem (if responses are enabled), your modem is placed in digital loopback mode.  
5. Have someone enter data from the remote keyboard. For this test, typing multiple  
uppercase U characters is a good way to send an alternating test pattern of binary  
ones and zeros. The data received by your modem enters its analog receiver, is  
converted to digital data, is reconverted into analog, and then is transmitted back to  
the remote modem. Your modem passes this test if the characters received on the  
remote monitor are the same as the characters entered from the remote keyboard.  
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C Loopback Tests  
6. To exit the test, type the escape sequence +++AT and press ENTER. This puts the  
modem in online command mode. The modem should respond with an OK  
message. If you wish to stay on line with the remote modem for normal data  
transmission, type AT&T and press ENTER to exit the test, then type ATO and  
press ENTER to return on line. If you wish to terminate the call, type ATH and  
press ENTER to hang up.  
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MultiModemZPX User Guide  
D Warranty, Service, and Technical Support  
Appendix D: Warranty, Service, and  
Technical Support  
Limited Warranty  
Multi-Tech Systems, Inc. (MTS) warrants that this product will be free from defects  
in material or workmanship for a period of ten years from the date of purchase or, if  
date of purchase is not provided, ten years from the date of shipment.  
MTS MAKES NO OTHER WARRANTY, EXPRESSED OR IMPLIED, AND ALL IM-  
PLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU-  
LAR PURPOSE ARE HEREBY DISCLAIMED.  
This warranty does not apply to any products that have been damaged by lightning  
storms, water, or power surges, or that have been neglected, altered, abused, used  
for a purpose other than the one for which they were manufactured, repaired by  
Customer or any party without MTSs written authorization, or used in any manner  
inconsistent with MTSs instructions.  
MTSs entire obligation under this warranty shall be limited (at MTSs option) to repair  
or replacement of any products that prove to be defective within the warranty peri-  
od or, at MTSs option, issuance of a refund of the purchase price. Defective prod-  
ucts must be returned by Customer to MTSs factory with transportation prepaid.  
MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES, AND UNDER  
NO CIRCUMSTANCES WILL ITS LIABILITY EXCEED THE PURCHASE PRICE  
FOR DEFECTIVE PRODUCTS.  
Online Warranty Registration  
If you have access to the World Wide Web, you can register your Multi-Tech prod-  
Service  
U.S. and Canadian Customers  
In the event that service is required, products may be shipped, freight prepaid, to  
our Mounds View, Minnesota, factory:  
Multi-Tech Systems, Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
Attn: Repairs, Serial #______  
A Returned Materials Authorization (RMA) is not required. Return shipping charg-  
es (surface) will be paid by MTS. Please include inside the shipping box a description  
of the problem, a return shipping address (must have street address, not P.O. Box), a  
telephone number, and if the product is out of warranty, a check or purchase order  
for repair charges.  
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For out of warranty repair charges, go to http://www.multitech.com/documents/warranties.  
Extended two-year overnight replacement agreements are available for selected  
products. Please call MTS at 888 288-5470, extension 5308, or visit our web site at  
http://www.multitech.com/PROGRAMS/orc/ for details on rates and coverages.  
Please direct your questions regarding technical matters, product configuration, ver-  
ification that the product is defective, etc., to our Technical Support department at  
800 972-2439 or e-mail [email protected].  
Please direct your questions regarding repair expediting, receiving, shipping, bill-  
ing, etc., to our Repair Accounting department at 800 328-9717 or +763 785-3500, or  
Repairs for damages caused by lightning storms, water, power surges, incorrect installa-  
tion, physical abuse, or user-caused damages are billed on a time-plus-materials basis.  
International Customers (outside U.S.A. and Canada)  
Your original point of purchase reseller may offer the quickest and most economical  
repair option for your Multi-Tech product. You may also contact any Multi-Tech sales  
office for information about the nearest distributor or other repair service for your  
In the event that factory service is required, products may be shipped, freight pre-  
paid, to our Mounds View, Minnesota, factory. Recommended international ship-  
ment methods are via Federal Express, UPS or DHL courier services, or by airmail  
parcel post; shipments made by any other method will be refused. A Returned Ma-  
terials Authorization (RMA) is required for products shipped from outside the  
U.S.A. and Canada. Please contact us for return authorization and shipping instruc-  
tions on any international shipments to the U.S.A. Please include, inside the ship-  
ping box, a description of the problem, a return shipping address (must have street  
address, not P.O. Box), your telephone number, and if the product is out of warran-  
ty, a check drawn on a U.S. bank or your companys purchase order for repair  
charges. Repaired units will be shipped freight collect, unless other arrangements  
are made in advance.  
Please direct questions regarding technical matters, product configuration, verifica-  
tion that the product is defective, etc., to our Technical Support department nearest  
mail [email protected]. When calling the U.S., please direct questions regard-  
ing repair expediting, receiving, shipping, billing, etc., to our Repair Accounting  
department at +763 717-5631 in the U.S.A., or e-mail [email protected].  
Repairs for damages caused by lightning storms, water, power surges, incorrect  
installation, physical abuse, or user-caused damages are billed on a time-plus-  
materials basis.  
International Distributors  
Procedures for international distributors of Multi-Tech products are on the Distribu-  
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MultiModemZPX User Guide  
D Warranty, Service, and Technical Support  
Technical Support  
Multi-Tech Systems has an excellent staff of technical support personnel available to  
help you get the most out of your Multi-Tech product. If you have any questions  
about the operation of this unit, please call 800 972-2439 (USA and Canada) or 763  
785-3500 (international and local). Please have modem information available. You  
can also contact Technical Support by e-mail at the following addresses:  
Country  
France:  
Email  
Telephone  
+(33) 1-64 61 09 81  
+91 (124) 6340778  
+(44) 118 959 7774  
800 972-2439  
India:  
U.K.:  
U.S.A., Canada  
Rest of world:  
+763 717-5863  
Before placing a call to our Technical Support staff, please record the following in-  
formation about your Multi-Tech modem:  
Model no.: _____________________________  
Serial no.: ______________________________  
Firmware version: _______________________  
Software version: ________________________  
COM port no.: __________________________  
IRQ setting: ____________________________  
The modem model and serial numbers are silk-screened on your modem. To display  
the modem firmware version, type ATI<CR> in terminal mode.  
Please note the status of the modem before contacting Technical Support. Status in-  
formation can include screen messages, diagnostic test results, problems with a spe-  
cific application, etc.  
Internet Sites  
Multi-Tech is a commercial provider on the Internet. Multi-Tech has a Web site at  
and an ftp site at  
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MultiModemZPX User Guide  
E Upgrading the Modem  
Appendix E: Upgrading the Modem  
Introduction  
Your modem is controlled by semi-permanent software, called firmware, which is  
stored in flash memory. Firmware is nonvolatile; that is, it remains stored in memory  
when the modem is turned off. However, it can be changed by either the manufac-  
turer or the user as bugs are fixed or new features are added.  
Since the firmware in your modem is stored in flash memory, you can upgrade it  
yourself in a few minutes by using the following procedures.  
Upgrade Overview  
The upgrade procedure consists of the following steps, which are described in greater  
detail in the following sections.  
1. Identify the model number and firmware version of your modem.  
2. Identify the current version of the firmware at the Multi-Tech Web site or BBS. If  
your modem already has the current firmware, there is no need to update it.  
3. Download the upgrade file and the appropriate Flash Wizard for your modem.  
4. Install the Flash Wizard and extract the firmware .HEX file from the file you  
downloaded.  
5. Document and clear your stored parameters.  
6. Upgrade the modems firmware using the .HEX file and the Flash Wizard.  
7. Restore your parameters.  
Step 1: Identify the Modem Firmware  
You must know the model number and firmware version of your Multi-Tech modem  
to know whether or not you should update it.  
1. Run your favorite terminal program. If you are using Windows 95 or above, you  
can use HyperTerminal.  
2. In the programs terminal window, type AT&F. Even if you cannot see the  
AT&F command on your screen, be sure to type it completely, and then press  
ENTER. If the modem does not respond with OK, repeat the AT&F command.  
3. Now type ATI, press ENTER, and record your results. The model number and  
firmware version should appear similar to that shown below.  
LT V.92 1.0 MT5634ZPX-PCI-V92 Serial Data/Fax Modem Version 1.25a  
70  
 
MultiModemZPX User Guide  
E Upgrading the Modem  
Step 2: Identify the Current Firmware Version  
Identify the current version of your modems firmware at the Multi-Tech Web site. If  
your modem already has the current firmware, there is no need to update it.  
1. Using your favorite Web browser, go to http://www.multitech.com/SUP-  
2. Scroll down to your modem model number.  
3. Look at the firmware version number for your modem.  
4. If the firmware version number matches the firmware version number found in  
Step 1: Identify the Modem Firmware,your modem has the current firmware  
version, and does not need to be updated.  
5. If the firmware version number is greater than the firmware version number  
found in Step 1: Identify the Modem Firmware,your modem has an older  
firmware version. Continue with Step 3: Download the Upgrade File.”  
Warning: The first digit of the new firmware must match the first digit of the  
old firmware, or the modem may not work properly. E.g., if your current firm-  
ware version is 4.16, replace it only with 4.xx firmware, not 6.xx firmware.  
Step 3: Download the Upgrade File  
1. If you are not already at the MultiModemZPX Firmware page of the Multi-Tech  
Web site, follow the procedure in Step 2: Identify the Current Firmware.”  
2. Download the upgrade file for your modem by clicking its name, and save the  
file in a temporary folder on your hard disk.  
3. In the same section of the Web page, download the Flash Wizard utility by click-  
ing it, and save it in the same folder. Alternately, install the Flash wizard from  
the MultiModemZPX compact disc.  
Step 4: Extract the Upgrade Files  
1. Install the Flash Wizard utility by double-clicking the Flash Wizard file name in  
Windows Explorer.  
2. Extract the upgrade files by double-clicking the file name. The extracted files in-  
clude a .HEX file, which contains the upgrade data, and a Readme file.  
3. Copy the upgrade .HEX file into the Flash Wizard folder, which, in a default in-  
stallation, is at C:\Program Files\MultiTech Systems\Flash Wizard\.  
Step 5: Document and Clear Your Stored Paramenters  
Before you flash your modem, you should record the parameters that are currently  
stored in it so you can reprogram it after flashing. After you have recorded them,  
send the AT&W1Z command to the the modem to clear the stored parameters.  
1. Run your favorite terminal program.  
71  
 
MultiModemZPX User Guide  
E Upgrading the Modem  
2. In the programs terminal window, type AT&V and press ENTER to list your  
modems current parameters.  
3. Record your parameters by saving the screens and sending them to your printer.  
4. Type AT&W1Z and press ENTER to clear your stored parameters and reset your  
modem to factory default.  
5. Close the terminal program.  
Step 6: Upgrade the Modems Firmware  
Before you begin the following procedure, read the README.TXT file extracted  
from the upgrade archive file. Note the file name for the new firmware (example:  
ARQG125A.HEX). Also, if you are using Windows NT, you must disable Windows  
RAS and Microsoft Fax Service before upgrading the modems firmware. To disable  
RAS and your Fax service, Click Start | Settings | Control Panel, and then double-  
click Services. Select Remote Access Server , and then click the Startup button. Se-  
lect Manual as the startup type, and then click OK. Do the same for any fax service.  
WARNING: Never install an older version of firmware over a newer version. Doing  
this WILL DESTROY THE FLASH PROM! If the flash PROM is destroyed, the mo-  
dem must be sent in for repair.  
1. Run Flash Wizard by double-clicking its icon or file name, or by selecting it  
from the Start menu. The program begins by identifying devices attached to  
your computer.  
2. Select the modem to be upgraded, and then click Next to proceed.  
3. Select the port to be upgraded from the Port list, select the appropriate .HEX file  
from the Hex File list, and then click Next to continue.  
Note: Do not use FLASHLDR.HEX. This file is used internally by Flash Wizard.  
4. The Progress dialog box now displays the progress of the upgrade.  
Caution: Any disruption of the program during this stage of the upgrade can  
cause your modem to become inoperable. Wait for the Next button to become  
active before proceeding.  
5. When the flash upgrade is complete, the message Programming Complete  
appears. Click Next to continue.  
6. The Results dialog box appears next. Click Finish to exit Flash Wizard.  
Note: If you are using Windows NT, be certain to enable RAS and your fax ser-  
vice when the operating system restarts.  
Step 7: Restore Your Parameters  
Your modem has been updated. You can now open your terminal program to repro-  
gram your modem parameters or to confirm the update by typing ATI in the termi-  
nal window and pressing ENTER.  
72  
 
MultiModemZPX User Guide  
F Installing Under Linux  
Appendix F: Installing Under Linux  
Introduction  
This appendix explains how to install a modem on a computer operating under the  
Red Hat Linux 6.2 operating system. Other versions of Red Hat and other Linux op-  
erating systems should be similar. Briefly, in Linux, you do not need drivers for most  
modems. Programs in Linux commonly call upon the port, rather than the modem.  
Standard Linux Serial Port Definitions  
PC port  
Com1  
Com2  
Com3  
Com4  
Linux port  
ttyS0  
ttyS1  
ttyS2  
ttyS3  
Installation  
Setup  
Install the MultiModemZPX in the computer as described in Chapter 2.  
1. Turn on the computer and allow the computer to boot to the command prompt.  
2. Log on as root.  
3. Determine the resources the modem is using by typing the command cat /proc/pci  
or the command less /proc/pci. Look for the entry listing vendor id=11c1 and  
device id=480. Note the IRQ the device uses as well as the first I/O address listed.  
Output example:  
Non-prefetchable 32 bit memory at 0x00000000  
Bus 0, device 17, function 0:  
Communication controller:Unknown vendor Unknown device (rev 0)  
Vendor id=11c1 Device id=480  
Medium devsel. Fast back-to-back capable. IRQ 11. Master  
Capable. No bursts.  
Min GNT=252. Max lat=14  
Non-prefetchable 32 bit memory at 0xe4000000  
I/O at 0x6400  
I/O at 0x6800  
I/O at 0x6c00  
4. Using the IRQ and first I/O address from the output obtained in step 3, type the  
command setserial /dev/ttySx uart 16550A port y irq z, where x is the serial de-  
vice you want to use, y is the I/O address, and z is the IRQ. Example: setserial /  
dev/ttyS2 uart 16550A port 0x6400 irq 11.  
73  
 
MultiModemZPX User Guide  
F Installing Under Linux  
Note: The preceding example places the modem on COM3. Your IRQ and port  
may vary. Substitute the IRQ and port values in the example with the values for  
your computer as listed in the results of the command issued in step 3. To set  
Linux to configure the modem at boot-up, use an editor such as jedand add  
the setserial command to the end of the rc.local file.  
5. Once youve completed your installation, you must configure your modem for  
country-specific operation. See Chapter 2 for information on using AT com-  
mands to configure your modem for use in your country.  
Using the Terminal Program Minicom to Verify Operation  
This section describes how to make sure Linux can talk to the modem and be able to  
dial up to the Internet. Linux can use different programs and desktops depending on  
who made the Linux operating system and what version it is. The following proce-  
dures use the most commonly installed components of Red Hat 6.2. More informa-  
tion can be found in your Linux OS owners manual.  
1. At the command prompt, type minicom –s and press ENTER.  
2. Select Serial port setup and press ENTER.  
3. From Serial port setup, use the A key to access Serial Device, and then press  
ENTER.  
4. Press ESC.  
5. You are now in the Minicom terminal. Type AT and press ENTER. The screen  
should display OK to verify the operation. Alternately, dial a phone number to  
verify line operation  
6. To leave Minicom, press CTRL + A, and then press Z.  
7. On the help menu, press X to exit.  
Using the Modem to Call the Internet  
Linux allows different graphic user interfaces (GUI). In the following steps, well use  
the Gnome Desktop GUI and assume that the Internet Service Provider (ISP) you are  
calling assigns you the Domain Name Service (DNS) and Internet Protocol (IP) ad-  
dresses. For more information on DNS or IP, see the Linux OS owners manual or  
contact your ISP.  
1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.  
2. Select Internet from the menu.  
3. Select Dialup Configuration Tool.  
4. Select Add, and then click Next.  
5. Enter the connection name and phone number, and then click Next.  
6. Enter your user name and password, and then click Next.  
7. Select Normal ISP if your ISP is not listed, and then click Next.  
8. Click Finish.  
74  
 
MultiModemZPX User Guide  
F Installing Under Linux  
Calling the ISP  
1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.  
2. Select Internet from the menu.  
3. Select RH PPP Dialer.  
4. Select the connection name you entered in step 5 of the previous section.  
5. Click OK.  
Answering Calls  
To use the system for answering calls, Linux requires other programs to be installed,  
such as Mgetty, Mgetty+Sendfax, and others, depending on your requirements. Each  
vendor of Linux has more than adequate information on installing these programs.  
75  
 
MultiModemZPX User Guide  
G Installing Under SCO OpenServer  
Appendix G: Installing Under SCO OpenServer  
Introduction  
This appendix explains how to install a modem on a computer operating under the  
SCO OpenServer 5.0.x operating system. Briefly, in SCO OpenServer , you do not  
need drivers for most modems. Programs in SCO OpenServer commonly call upon  
the port, rather than the modem.  
Installation  
Install the MultiModemZPX in the computer as described in Chapter 2.  
Setup  
1. Turn on the computer and allow the computer to boot to the command prompt.  
2. Log in as root.  
3. Determine the port address and IRQ for the modem by typing: hw -r pci  
To output the port address and IRQ information to a file, type: hw -r pci>pci.txt  
Caution: If you choose to output the information to a file, make sure the output  
file name includes the .txt extension. While logged on as root, the possibility  
exists that the system file pciwill be overwritten. By default, UNIX does not  
ask if you want to overwrite a file.  
4. Look at the ClassCode: 0x078000 (other communications device) section of the  
output. The MultiModemZPX is identified as SubSystemID: 0x0480.  
5. Use the first I/O address listed as the port address. In the output, look for:  
BaseAddr [x]: I/O NxNNNN  
where x is the first I/O base address (not memory) and NxNNN is the I/O address.  
6. Use Serial Manager (or mkdev serial) to add a serial port. Choose IBM Com X  
for the new port, where X is the number of the new port. Use the first I/O ad-  
dress listed in the output file created in step 3 (BaseAddr [x]:) as the port address.  
7. Use the IRQ listed in the InterruptLine of the output file created in step 3.  
8. Once the serial port has been added, the system will require the kernal to be  
relinked. After the relinking is complete, restart the system to activate the changes.  
9. Log back on as root.  
10. At this point, you may configure the modem as needed on the new port and add  
required entries to Devices.  
11. Once youve completed your hardware installation and system setup, you must  
configure your modem for country-specific operation. Refer to Chapter 2 for in-  
formation on using AT commands to configure the modem for use in your country.  
Note: If you are using the modem to dial out, a dialer may be needed.  
76  
 
Index  
 
MultiModemZPX User Guide  
Symbols  
56K operation  
digital loss when used with PBX  
42  
Index  
\J 29  
\K 29  
\N 30  
\Q 30  
\T 30  
\V 30  
\X 30  
A 23  
A/ 23  
AT 23  
B 23  
D 23  
definition 22  
descriptions 2339  
DS= 24  
E 24  
F 24  
format 22  
H 24  
I 24  
M 25  
N 25  
O 25, 46, 47  
P 25  
Q 25  
S= 25  
S? 25  
T 26  
V 26  
W 26  
X 26  
Z 26  
communication programs  
16, 22, 49  
Communication Standard command  
23  
compression, data 32, 52  
configuration, storing a 16, 28  
configuring for your country 15  
configuring software 16  
connect messages 16, 43  
country code, displaying 24  
country configuration 15  
disabling the auto rate 42  
maximum connect speed 41  
mode selection 42  
A
abort timer 40  
Adaptive Answer Result Code  
Enable command 31  
analog loopback test 6364  
Answer command 23  
Asynchronous Communications  
Mode command 27  
AT commands 2244  
#S 38  
#S= 38  
%%%AT 39  
%A 31  
%B 31  
%C 31  
%E 31  
&&S 28  
&C 26  
&D 27, 52  
&E 27  
&F 16, 27  
&G 27  
D
Data Buffer Control command 29  
data buffering 27  
data calling tone 40  
Data Calling Tone command 31  
Data Carrier Detect command 26  
data compression 32, 52  
data mode 22, 25, 64  
Data Set Ready Control command 28  
Data Terminal Ready command 27  
DCD Control command 26  
default settings 16, 27  
diagnostic information, displaying 24  
Dial command 23  
Dial Stored Telephone Number  
command 24  
dial string modifiers 23  
Dial-Up Networking 1920  
dialing tones 40  
digital loopback tests 6466  
disconnect delay 40  
&K 27  
&Q 27, 52  
&S 28  
attention code 23  
autoanswer 22, 40, 52  
autobaud 16  
Display Current Settings command  
28  
Distinctive Ring command 38  
DSR Control command 28  
DTE rate 16  
DTR (Data Terminal Ready) Control  
command 27, 52  
&T 28  
&V 28  
&W 16, 28, 46, 47  
&Z= 28  
+++AT 39  
+DCS= 32  
+DR= 32  
+DS44= 32  
+ES= 33  
+MS= 34  
B
backspace character, setting 40  
baud rate 16  
Bell 212A mode 23  
blacklisting 31  
Break Control command 29  
break signal 29  
E
Echo Command Mode Characters  
command 24  
Echo Online Data Characters  
command 24  
Enable Synchronous Buffered Mode  
command 33  
+MS=? 32, 34  
+MS? 33, 34  
+PCW= 35  
+PIG= 36  
+PMH= 36  
+PMHF 36  
+PMHR= 36  
+PMHT= 37  
+PQC= 37  
+VCID= 38  
+VDR= 38  
-C 31  
C
call waiting 35, 51  
Call Waiting Enable command 35  
Caller ID 2, 16, 38, 40, 52, 53  
Caller ID Selection command 38  
Canadian regulations 5860  
carriage return character 40  
carrier loss disconnect time, setting  
40  
COM Port assignment 9  
comma, setting pause time 40  
command mode 22  
ENTER key 23  
Enter Setup Password command 38  
error control, setting 40, 42  
error correction, disabling 64  
Error Correction Mode Selection  
command 30  
escape character 40  
escape sequence 22, 39  
\A 28  
\B 29  
command string 22  
78  
 
MultiModemZPX User Guide  
F
Index  
MNP 5 data compression 31  
MNP error correction 30  
Result Codes Enable/Disable  
command 25  
Return Online to Data Mode  
command 25  
fallback 25  
Fallback and Fall Forward  
command 31  
fax communications 1920  
faxing from a Windows application  
19  
FCC regulations 5657  
firmware  
Modem on Hold 8, 36, 37  
Modem on Hold Enable command 36  
Modem on Hold Initiate command  
36  
Modem on Hold Timer command 37  
Modem Reset command 26  
Modulation Handshake command 25  
Modulation Selection command 34  
Monitor Speaker Mode command 25  
Multi-Tech Internet sites 69  
rings, setting number of 16, 40  
ROM checksum 24  
S
S-registers 4044  
reading 25  
S0 16, 40  
S1 40  
S2 40  
S3 40  
S4 40  
S5 40  
upgrading 7072  
version 24  
flash 36  
flash memory 70  
Flash Wizard upgrade utility 71  
flow control 27, 30  
Flow Control Selection command  
27, 30  
N
New Zealand regulations 59  
S6 40  
S7 40  
O
on-hook/off-hook 24  
online command mode 22  
S8 40  
S9 40, 47  
S10 40  
S11 40  
G
garbage characters 53  
Global Wizard 15  
Guard Tone Control command 27  
P
S28 40  
patch cord for sound card 4, 7  
pause time for comma, setting 40  
PCM Upstream Ignore command 36  
phone connection 6  
PhoneTools program 18  
Plug and Play 2  
programs, communication 16  
Protocol Result Code command 30  
protocols 52  
S30 40  
S35 40  
S36 40  
S37 41  
S38 41  
S42 42  
S48 42  
S89 42  
H
H.324 video 33  
handshake 25  
hangup command 24  
hangup delay 40  
Hook Control command 24  
S108 42  
Pulse Dialing command 25  
S109 42  
setting 25  
safety 4  
Select Maximum MNP Block Size  
command 28  
Select V.44 Data Compression  
command 32  
I
inactivity timer 40  
Q
Inactivity Timer command 30  
Industry Canada regulations 5860  
Information Request command 24  
initialization strings 16, 22, 49  
installation and setup 416  
international restrictions 60  
Internet addresses 69  
Quick Connect 37  
Quick Connect Control command 37  
serial port 16  
R
servicing your modem 57  
Set Register Value command 25  
software, communication 16  
software installation  
in Windows 2000 13  
in Windows NT 11  
solving problems 4954  
sound card connection 7  
Speaker Codec Loopback command  
28  
Speaker Mode command 25  
speakerphone 7, 54  
specifications, technical 6162  
speed  
rate, maximum data 41  
Read Register Value command 25  
reference materials 20  
registering your product 67  
regulatory compliance 5660  
remote configuration 4647  
escape character 40, 47  
L
line connection 6  
line feed character 40  
Linux 7375  
Load Factory Settings command  
16, 27  
local analog loopback test 6364  
local digital loopback test 6566  
loopback tests 54, 6366  
lost data 52  
escape sequence 39  
remote digital loopback test 6465  
remote node operation 19  
removing previous modems 14  
Repeat command 23  
required equipment 4  
resetting the modem 26, 27  
Result Code Format command 26  
Result Code Options command 26  
Result Code Selection command 26  
result codes 22, 30, 4344, 50  
maximum 41  
serial port 16  
speed conversion (data buffer)  
27, 29  
standby mode delay time 42  
M
messages 4344  
microphone 7  
79  
 
MultiModemZPX User Guide  
Index  
Store Current Configuration  
V
W
command 16, 28  
V.22 mode 23  
V.22bis Guard Tone Control  
command 27  
wait time for dial tone 40  
warranty 56, 67  
Windows operating systems 8, 816  
Store Dialing Command 28  
Store Setup Password command 38  
Sync/Async Mode command 52  
synchronous buffered mode 33  
V.25 data calling tone 31, 40  
V.34 modulation, enabling 40  
V.42 error correction 30  
V.42bis Compression Control  
command 31  
V.42bis data compression 31  
V.44 data compression 32  
V.44 Data Compression command  
32  
V.44 Data Compression Reporting  
command 32  
V.54 tests 28, 6366  
V.92 mode 34, 35, 36, 37  
V.92 Modem Hook Flash command  
36  
World Wide Web 20  
X
T
Xmodem 52  
XON/XOFF Pacing Control  
command 27  
XON/XOFF Pass-Through  
command 30  
technical specifications 6162  
telephone  
connecting 6  
line 50  
terminal mode 49  
testing the modem 28, 50  
fax 1920  
loopback tests 6366  
voice communications 5354  
Tone Dialing command 26  
tones, dialing 40  
Y
Ymodem/G protocol 52  
Z
video 33  
View Numbers in Blacklist  
command 31  
Transmit Break command 29  
troubleshooting 4954  
Zmodem protocol 52  
voice commands 28  
voice mail 7, 54  
voice tests 5354  
U
upgrading the modem 7072  
upstream mode 36  
80  
 

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