Multitech MultiModem MT5634ZBA-V-V92 User manual

MT5634ZBA-V-V92
User Guide
Modem with Voice, V.92 D t ,
nd Super G3 F x

ii
MultiModemZBA-V-V92 User Guide
MT5634ZBA-V-V92
S0000244 Revision A
Copyright © 2002 by Multi-Tech Systems, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed
written permission from Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes
in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization
of such revisions or changes.
Record of Revisions
Revision Date Description
A 04/03/02 Initial release.
Trademarks
MultiModemZBA, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc.
Adobe and Acrobat are trademarks of Adobe Systems Incorporated. MNP is a trademark of Microcom,
Inc. Microsoft, Windows, Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000, and
Windows XP are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries. All other brand and product names mentioned in this publication are
trademarks or registered trademarks of their respective companies.
Patents
This device is covered by one or more of the following patents: 6,031,867; 6,012,113; 6,009,082; 5,905,794;
5,864,560; 5,815,567; 5,815,503; 5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627; 5,754,589; D394,250;
5,724,356; 5,673,268; 5,673,257; 5,644,594; 5,628,030; 5,619,508; 5,617,423; 5,600,649; 5,592,586; 5,577,041;
5,574,725; D374,222; 5,559,793; 5,546,448; 5,546,395; 5,535,204; 5,500,859; 5,471,470; 5,463,616; 5,453,986;
5,452,289; 5,450,425; D361,764; D355,658; D355,653; D353,598; D353,144; 5,355,365; 5,309,562; 5,301,274.
Other patents pending.
Notice
Though this modem is capable of 56K bps download performance, line impairments, public telephone
infrastructure, and other external technological factors currently prevent maximum 56K bps connections.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112
U.S.A
Telephone [phone] or [phone]
Fax [phone]
Technical Support [phone]
Internet http://www.multitech.com

Contents
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MultiModemZBA-V-V92 User Guide
Table of Contents
Chapter 1 - Introduction............................................................................................... 2
Product Description ........................................................................................... 2
We Supply ........................................................................................................... 3
You Supply .......................................................................................................... 3
Chapter 2 - Installation.................................................................................................. 5
Safety Warnings ................................................................................................. 5
Step 1: Mount the Feet ....................................................................................... 5
Step 2: Change the Internal Jumpers ............................................................... 6
Opening the Modem ........................................................................................... 6
Location of the Jumpers .................................................................................... 7
Changing the Dial-Up/Leased-Line Jumpers ................................................... 7
Changing the Voice Jumper .............................................................................. 7
Step 3: Connect the Modem to Your System ................................................... 8
Step 4: Install the Modem Driver ..................................................................... 10
Step 5: Configure the Modem for Your Country ............................................ 11
Step 6: Install and Configure Your Software.................................................. 12
Chapter 3 - Operation.................................................................................................. 14
Front Panel ........................................................................................................ 14
Configuring the Modem ................................................................................... 15
PhoneTools Features ....................................................................................... 15
Leased Line Operation ..................................................................................... 16
V.92 Operation .................................................................................................. 17
Connecting to the Internet ............................................................................... 17
Dial-Up Networking .......................................................................................... 18
Sending a Fax ................................................................................................... 18

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Chapter 4- AT Commands, S-Registers, and Result Codes .................................... 20
AT Commands .................................................................................................. 21
S-Registers........................................................................................................ 40
Result Codes..................................................................................................... 43
Chapter 5 - Remote Configuration ............................................................................. 47
Basic Procedure ............................................................................................... 47
Setup.................................................................................................................. 47
Chapter 6 - Callback Security..................................................................................... 57
Setup.................................................................................................................. 57
Calling Procedures ........................................................................................... 60
Callback Security Commands ......................................................................... 62
Callback Assignments Form ........................................................................... 66
Chapter 7 - Modem on Hold Operation ...................................................................... 68
What Is Modem on Hold? ................................................................................. 68
The Modem on Hold Program.......................................................................... 68
Using Modem on Hold...................................................................................... 71
Chapter 8 - Solving Problems .................................................................................... 74
None of the Indicators Light ............................................................................ 74
The Modem Does Not Respond to Commands .............................................. 75
The Modem Cannot Connect When Dialing ................................................... 76
The Modem Disconnects While Online........................................................... 77
The Modem Cannot Connect When Answering ............................................. 78
File Transfer Is Slower Than It Should Be ...................................................... 78
Data Is Being Lost ............................................................................................ 78
There Are Garbage Characters on the Monitor.............................................. 79
The Modem Doesn’t Work with Caller ID ........................................................ 79
Fax and Data Software Can’t Run at the Same Time..................................... 79

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MultiModemZBA-V-V92 User Guide
Appendix A - Regulatory Compliance ....................................................................... 81
FCC Part 68 Telecom........................................................................................ 81
FCC Part 15 ....................................................................................................... 82
Fax Branding Statement .................................................................................. 82
Canadian Limitations Notice ........................................................................... 83
Industry Canada ............................................................................................... 83
International Modem Restrictions ................................................................... 83
EMC, Safety, and R&TTE Directive Compliance ............................................ 84
New Zealand Telecom Warning Notice ........................................................... 84
South African Notice ........................................................................................ 85
Appendix B - Technical Specifications ..................................................................... 86
Appendix C - Upgrading the Modem’s Firmware ..................................................... 88
Introduction....................................................................................................... 88
Upgrade Overview ............................................................................................ 88
Appendix D - Installing a Modem Under Linux ......................................................... 91
Introduction....................................................................................................... 91
Standard Linux Serial Port Definitions ........................................................... 91
Installation......................................................................................................... 91
Setup.................................................................................................................. 91
Appendix E - Connecting to a Cisco Router ............................................................. 93
Connecting to a Cisco Router Console Port .................................................. 93
Console Port Connections............................................................................... 95
Remote Configuration ...................................................................................... 95
Appendix F - Warranty, Service, and Technical Support......................................... 97
Multi-Tech Systems, Inc. Warranty & Repairs Policies ................................. 97
Online Warranty Registration .......................................................................... 99
Service............................................................................................................... 99
Replacement Parts ......................................................................................... 100
Technical Support .......................................................................................... 100
Internet Sites ................................................................................................... 100
Index .................................................................................................. 102

Chapter 1
Introduction

1 Introduction
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MultiModemZBA-V-V92 User Guide
*Though this modem is capable of 56K bps download performance, line impairments, public
telephone infrastructure, and other external technological factors may prevent maximum
56K bps connections.
Chapter 1 - Introduction
Congratulations on your purchase of the MultiModemZBA-V-V92 modem. You have acquired one of
the finest intelligent voice/data/fax modems available today from one of the world’s oldest modem
manufacturers: Multitech Systems, Inc. This user guide will help you to install, configure, test and use
your modem.
Product Description
The Multi-Tech MT5634ZBA-V-V92 external modem provides high-speed data transfer and fax
capabilities for small businesses, telecommuters, and SOHO users. Its support of the ITU-T V.92
protocol enables downstream transmissions at speeds up to 56 Kbps* and upstream transmissions at
speeds up to 48 Kbps when connected to V.92-compatible Internet service providers. Transmissions
between the MT5634ZBA-V-V92 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 MT5634ZBA-V-V92 also supports “Super G3” ITU-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, the modem can store up to four command lines or telephone numbers of up to 40
characters each in nonvolatile memory. In callback security mode, it can store up to 30 passwords
and dialing strings. Other modem capabilities include modem-on-hold, 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, V.42bis and V.44 data compression,
and self-resetting lightning protection.
Please note that some V.92 features are turned off in the factory default configuration, and may need to
be turned on, depending on your needs. For more information, see “V.92 Operation” on page 17.

1 Introduction
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MultiModemZBA-V-V92 User Guide
We Supply
ÖAn MT5634ZBA-V-V92 data/fax/voice modem
ÖA set of four self-adhesive plastic feet
ÖA printed Quick Start Guide
ÖA MultiModemZBA installation CD containing modem drivers, this User Guide, data communications
software, and other programs+
ÖA universal power supply and, if applicable, a power cord
ÖA 9-pin to 25-pin serial cable
A localization kit is included with the modem in some countries, and purchased separately in others. The
kit can include any or all of the following items:
An RJ-11 telephone cable
An adapter to connect the RJ-11 cable to your local telephone service
A country-specific power cord
The following illustration shows how the modem is packaged for different countries. Please use this
information to check the contents of your package.
(Ordered separately)
Telco adaptor, power cord
and RJ-11 phone cable
LK-ZBA-XXXX
odem Installation
CD
Universal
power supply
RS-232
cable
T5634ZBA-V-V92
odem Installation
CD
Universal
power supply
RS-232
cable
T5634ZBA-V-V92
Euro-style power cord
and RJ-11 phone cable
LK-ZBA-Euro
odem Installation
CD
Universal
power supply
RS-232
cable
T5634ZBA-V-V92
U.S.-style power cord
and RJ-11 phone cable
LK-ZBA-US/NA
Figure 1–1. Localization kits
The localization kit order number for your country can be found on the Multi-Tech Web site at http://
www.multitech.com/GlobalModem/order/localkits.asp
If any item is missing, please contact Multi-Tech Systems or your dealer/distributor (see Appendix F for
information on contacting Multi-Tech via telephone, fax, or the Internet).
You Supply
ÖA computer with an available serial port
ÖA nearby AC power outlet
ÖA nearby telephone line jack
ÖA nearby two-wire leased line jack or terminals (optional)

Chapter 2
Installation

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MultiModemZBA-V-V92 User Guide
Chapter 2 - Installation
This chapter shows you step-by-step how to set up your Multi-Tech data/fax/voice modem and make
your first calls.
Safety Warnings
•Use this product only with UL- and CUL-listed computers (U.S.A. and Canada)
•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.
Step 1: Mount the Feet
The modem comes with a strip of self-adhesive plastic feet, which you can optionally mount on the
modem. To install the feet, simply peel them from their paper strip and press them into the recesses
on the bottom of the modem.
Figure 2-1. Mounting the feet.

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MultiModemZBA-V-V92 User Guide
Step 2: Change the Internal Jumpers
This step is required only if:
ÖYou intend to use the modem on a leased line.
ÖYou intend to add a monophonic external speaker to your modem with the voice option. No
changes are needed for stereo.
This will require you to open the modem and move one or more jumpers on the modem’s printed
circuit board.
Warning: The following procedure must be performed by authorized service personnel.
Caution: The circuit board can be harmed by static electricity. Before you open the case, touch a
grounded object, such as the metal chassis of your computer, to discharge any static electricity in
your body, then touch the metal shell of the modem’s RS-232 connector to ensure that there is no
voltage difference between you and the modem.
Opening the Modem
1. If the modem is connected, turn it off and remove all connecting cables, including the power and
line cables.
2. Turn the modem upside down.
3. On the bottom of the modem are two screws, which hold the case together. Remove both
screws and set them aside.
4. Turn the modem right side up.
5. Remove the top part of the modem case.
6. To close the modem, reverse Steps 1–5.

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MultiModemZBA-V-V92 User Guide
Location of the Jumpers
J10 Dial-Up/Leased Line J11 Originate/Answer
Dial-up (default)
Leased line
Answer (default)
Originate
J10
J11
J8
J8 Speaker Mode
Open: mono
Closed: stereo (default)
Figure 2-2. Internal jumpers
Changing the Dial-Up/Leased-Line Jumpers
As shipped from the factory, your modem is configured for normal dial-up operation. That is, the
modem must dial a phone number to connect to another modem. To use the modem on a leased line,
you must change jumper J10 to select leased line operation, and J11 to select whether it will be the
originating or the answering modem. If dial-up operation is selected, J11 has no effect.
See Chapter 3 for additional leased line information.
·The factory default is the answer position. This makes the modem the answering modem on the
leased line.
·To use the modem on a leased line, move the J10 jumper plug from the default dial-up position to
the leased line position.
·To make the modem the originating modem on the leased line, move the J11 jumper plug to the
originate position.
Changing the Voice Jumper
The speaker jumper (J8) is next to the external speaker jack (see Figure 2-2).
·The factory default position of the voice jumper is set for a stereo speaker or sound card. A
jumper plug covers both pins of the J8 jumper.
·To use the modem with a monophonic external speaker, remove the jumper plug from the J8
jumper pins. You can store it by placing it on one jumper pin.

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MultiModemZBA-V-V92 User Guide
Step 3: Connect the Modem to Your System
Turn off your computer. Place the modem in a convenient location, and then connect it to your
computer’s serial port, the telephone line or leased line, AC power, and, optionally, your telephone.
PWR RS232 PHONE LINE
Figure 2-3. MultiModemZBA connections.
Connect the Modem to You PC
Plug one end of the serial cable into the RS232 connector on the modem and the other end into a
serial port connector on your computer, such as COM1 or COM2.
Connect the Modem to the Telephone Line
Plug one end of the modular telephone cable into the modem’s LINE jack and the other end into a
standard phone wall jack.
Important: The LINE jack is not interchangeable with the PHONE jack. Do not plug the telephone
into the LINE jack or the line cable into the PHONE jack.
Note: Regulatory agencies may impose certain restrictions on equipment connected to public
telephone systems. For more information, see Appendix A.
Connect the Two-Wire Leased Line
Plug one end of a two-wire telephone cable into the modem’s LINE jack and the other end to a two-
wire leased line wall jack or terminals.
Note: Before you can use the modem on a leased line, you must first change the internal jumpers.
See “Step 2: Change the Internal Jumpers.”

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Connect the Modem to a Phone (Optional)
If you want to connect a phone to same line as the modem, plug it into the modem’s PHONE jack.
Important: The PHONE jack is not interchangeable with the LINE jack. Do not plug the telephone
into the LINE jack or the line cable into the PHONE jack.
Connect a Microphone and/or Speakers (Optional)
PWR RS232 PHONE LINE
Figure 2-4. MultiModemZBAV connections.
Connect the Microphone
For voice mail or speakerphone applications, plug an unamplified microphone into the MIC jack on
the side of the modem. The microphone should have a stereo 1/8-inch mini plug. Do not use a
monophonic microphone.
Connect the Speakers
For speakerphone or voice mail applications, use a 1/8-inch plug male-to-male stereo patch cord to
connect the SPKR jack on the side of 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. The stereo male-to-male patch cord can
be purchased at a local PC retail store.
If you do not have a sound card, you can plug an unamplified speaker directly into the SPKR jack.
Connect the Modem to the AC Power Outlet
The power switch is located on the right side of the modem. Make sure it is set to OFF. Plug the the
universal power supply into the PWR jack on the modem. Then plug one end of the country-specific
power supply cord into the universal power supply and the other end into a power outlet or power
strip.
Note: Use only the power supply supplied with the modem. Use of any other power supply voids the
warranty and can damage the modem.

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Power-On Test
Test the modem by turning it on. When you turn it on, the modem performs a diagnostic self-test,
after which the 56 indicator should light. If this does not happen, check that the power switch is on,
the power supply is solidly connected, and the AC outlet is live. If these measures do not work, see
Chapter 8, “Solving Problems.”
Surge Protectors and Lightning
Your modem has automatic, self-resetting protection to protect it from lightning-induced electrical
spikes on the telephone line. Nonetheless, large power surges and nearby lightning strikes can
damage or destroy your modem. Therefore, we recommend that you plug the modem into a surge
protector rather than directly into a wall outlet, preferably a surge protector that provides protection
against electrical spikes on the telephone line as well as on the power line. Note that not even a
surge protector can guard against damage from a nearby lightning strike. During an electrical storm,
it is safest to unplug your computer equipment from both the power outlet and the telephone line.
Step 4: Install the Modem Driver
If you use Windows 95 or above, you must install the modem driver. The modem driver tells Windows
how to control the modem. In Windows 95 and above, the MTMoh Modem on Hold program is
installed at the same time (see Chapter 7). If you use a Linux operating system, please see Appendix
F. If you use another operating system, please refer to its documentation for modem installation
information.
Installing the Modem Driver
1. Make sure your modem is connected properly, and then turn on your computer. Windows should
detect your new modem and open the Install New Modem wizard.
Note: If Windows cannot find a modem, your modem may be turned off, it may be plugged into
the wrong connector on your computer, or the serial cable may be faulty. See “None of the LEDs
Light When the Modem Is Turned On”and “The Modem Does Not Respond to Commands”in
Chapter 8, “Solving Problems.”
2. Insert the system CD into your CD-ROM drive, and then click OK.
3. Windows installs the modem driver.
4. Click Finish to exit.
Removing an Old Modem Driver
When a new modem replaces another modem, the old modem driver remains in Windows, and
the old modem driver is still selected in HyperTerminal and other Windows applications. Though you
can change the application connection descriptions one at a time, it is easier to force Windows
applications to use the new modem by removing the old modem driver from Windows.
1. Click the Start button, point to Settings, and click Control Panel.
2. Double-click the Modems icon to open the Modems Properties dialog box.
3. In the list box, select the old modem.
4. Click Remove, and then click Close.
5. The next time you dial a HyperTerminal connection, it will select your new modem and ask you to
confirm the selection.

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Step 5: Configure the Modem for Your Country
Different countries have different requirements for how modems must function. Therefore, before you
use your modem, you must configure it to match the defaults of the country in which you are using it.
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:
1. Use the Global Wizard to Configure Your Modem
2. Use AT Commands to Configure Your Modem
Using the Global Wizard to Configure Your Modem
The Global Wizard configuration utility is recommended for computers running Windows 95 or newer.
1. Insert the MultiModemZBAV-V92 CD into the CD-ROM drive. The Autorun menu should appear.
2. Click Initial Setup and Country Selection.
3. Choose either:
- Run Global Wizard from CD. This will not load the wizard onto your hard drive, or
- Install Global Wizard on the HD. This will install the wizard onto your hard drive for future use.
4. The Global Wizard dialog box appeard. Click Next.
5. The Global Wizard searches for your modem and identifies it. Click Next.
6. Select the country in which the modem will be used. 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.
Using AT Commands to Configure Your Modem
Non-Windows users can configure the modem using AT commands. You must enter these
commands in your communication program’s terminal window.
1. Run your favorite communication program, and open the program’s 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. The message OK displays.
3. To verify the change, type ATI9 and press ENTER. The country code displays in decimal format.
Country AT Command (hexadecimal) Result code (decimal)
Euro/NAM AT%T19,0,34 (default) 52
A complete list of country codes can be found on the Multi-Tech Web site at
http://www.multitech.com/GlobalModem/config.

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Step 6: 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 configuration 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 Terminal select
Settings | Modem Commands; in HyperTerminal select File | Properties | Phone Number; and
in PhoneTools select Configure | General Configuration |Communication |Change Modem.
3. Choose your modem from the program’s modem list. If it isn’t listed, choose a generic modem
and modify the settings as necessary.
4. Change the modem initialization string, if necessary. The factory default configuration 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 command, use ATZ. For a Macintosh, the initialization
string should include the & D0 command. 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 modem’s default configuration, type new commands in the communication
program’s terminal window, adding the & W command to store them in the modem’s nonvolatile
memory. For instance, to create a default configuration 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 (normally COM1 or COM2).
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 times the
modem’s 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.

Chapter 3
Operation

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MultiModemZBA-V-V92 User Guide
Chapter 3 - Operation
Your Multi-Tech modem operates under the control of a communication program, such as the
PhoneTools program included with the modem. It also can operate 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 program’s
documentation.
Front Panel
Figure 3-1. Front panel
The MultiModemZBA has ten LED indicators on the front panel, which indicate status, configuration,
and activity:
TD
Transmit Data. The TD indicator flashes when the modem is transmitting data to another modem.
RD
Receive Data. The RD indicator flashes when the modem is receiving data
CD
Carrier Detect. The CD indicator lights when the modem detects a valid carrier signal from another
modem. It is on when the modem is communicating with the other modem, and off when the link is
broken.
56
56K Mode (56,000–28,000 bps). The 56 indicator lights whenever the modem is set for or connects
using the V.90 or V.92 protocol. The actual connection speed depends on ISP server capabilities and
line conditions.
33
V.34 Mode (33,600–16,800 bps). The 33 indicator lights whenever the modem connects using the
V.34 protocol.
14
V.32bis Mode (14,400–12,000 bps). The 14 indicator lights whenever the modem connects using
the V.32bis protocol.
Note: Though the modem can connect at lower than V.32bis speeds, no speed indicator lights during
the connection.

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OH
Off-Hook. The OH indicator lights when the modem is off-hook, which occurs when the modem is
dialing, online, or answering a call. The LED flashes when the modem pulse-dials.
TR
Terminal Ready. The TR indicator lights when a communications program is using the modem. It
means the modem is ready for an outgoing or incoming call. It goes off when the communications
program disconnects the serial port. When it goes off, a connected modem will also disconnect.
EC
Error Correction (V.42). The EC indicator lights continuously when the modem is in V.42 error
correction mode, and flashes when compression is activated.
FX
Fax. The FX indicator lights when the modem is in fax mode.
Note: When you turn on the modem, the protocol indicators flash briefly as the modem does a self-
test, after which the 56 indicator lights. After a call, the indicator for the protocol used in the
connection remains lit until another call is made or the modem is reset. If you connect at a rate under
14,400 bps, all protocol indicators remain off after the connection is broken, even though the modem
is still turned on.
Configuring the Modem
Your modem normally is configured either through Windows or through the communication program
you are using. The default settings work best for most purposes. See “Step 6: Install and Configure
Your Software”in Chapter 2 for help in setting up your communication program.
You can also configure your modem directly by typing AT commands in the terminal window of a
communication program. See Chapter 4 for descriptions of the modem’s 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 retrieval requires
Caller ID service from your telephone company).
Print a received fax.
For detailed information about operating your modem under PhoneTools, please refer to the Phone-
Tools online documentation.