Zoom ComStar XT SVD User manual

COMST★R SVD
Owner’s Manual
33,600 bps
Faxmodem
with Speakerphone,
SVD and Voice Mail

NOTICE
This document contains proprietary information protected by
copyright, and this Owner’s Manual and all the accompanying
hardware are copyrighted. All rights are reserved. No part of this
document may be photocopied or reproduced by mechanical,
electronic, or other means in any form, except for the personal
use of the owner.
The manufacturer does not warrant that the hardware will work
properly in all environments and applications.
Although the hardware has been tested, the manufacturer makes
no warranty and representation, either implied or expressed, with
respect to the hardware and the documentation, quality,
performance, merchantability, or fitness for a particular purpose.
The manufacturer reserves the right to make changes to the
hardware and Owner’s Manual content without obligation to notify
any person or organization of the revision or change.
All brand and product names are the trademarks of their
respective owner.
Copyright 1996
All rights reserved.

Contents iii
Contents
Introduction............................................................................ 5
What You Need to Use Your ComStar SVD.................. 6
Documentation Conventions......................................... 7
Chapter 1 Installation............................................................. 8
To Install your Faxmodem:.......................................... 8
Setting Up Your Faxmodem for Windows 95............................12
Problems with Plug and Play Setup.............................13
Setting Up Your Faxmodem with Windows 3.1
or 3.11 .....................................................................16
Chapter 2 Using the Faxmodem.............................................19
Using Voice, Fax, and Data Communications
Software...................................................................19
Initialization Strings....................................................19
Using AT Commands.................................................21
Returning to the Factory Settings................................22
Using the Speakerphone Feature................................22
Simultaneous Voice and Data (SVD) and Other
Advanced Telephony Operations ................................23
Chapter 3 Problems and Solutions.........................................28
General Troubleshooting............................................29
Echo Troubleshooting ................................................32
Dial Troubleshooting..................................................32
On-line Troubleshooting .............................................33
Voice/Speakerphone Troubleshooting .........................36
Appendix A: Product Summary...............................................38
Appendix B: Setting the Modem’s Audio Jumpers.....................40
Appendix C: Caller ID ............................................................42
Using Caller ID..........................................................42

ComStar SVD Owner’s Manual iv
Appendix D: Using AT Commands with the
Speakerphone Feature ..........................................................43
Turning On The Speakerphone Feature.......................43
Changing The ComStar SVD’s Settings.......................44
Appendix E: AT Commands....................................................45
Voice Commands......................................................52
Appendix F: S Registers ........................................................56
Appendix G: Result Codes.....................................................60
Appendix H: Regulatory Information........................................62
FCC Part 68 Telecommunications Statement...............62
FCC Part 15 Emissions Statement..............................63
Industry Canada Attachment ......................................64
Canadian Emissions Statement...................................65
Appendix I: Physical Specifications .........................................66
Index....................................................................................67

Introduction 5
Introduction
Congratulations! You have purchased a powerful, flexible tool that
will help you manage your communications, work more efficiently,
and present a polished and professional image at home or at the
office.
The Zoom ComStar SVD faxmodem supports SVD (Simultaneous
Voice and Data) operation, implemented with Rockwell
International’s AudioSpan™ and compatible with V.61 and V.34Q
(proposed).
This product includes high-speed PC-based data and fax
capability, full-duplex speakerphone, digital answering machine,
and multiuser voicemail. It contains hardware compatible with
VoiceView™ alternating voice and data, Distinctive Ring and
Caller ID services. ComStar SVD is “Plug and Play” (PnP)
compatible and software configurable, so installation is fast and
easy.
This manual is primarily an installation, troubleshooting, and
reference guide. Once you have successfully installed the modem
in your IBM PC-compatible computer, software controls virtually
all access to the fax, data, speakerphone, voicemail, and other
product features.
While many data communications features can be controlled using
AT commands and S registers, there is rarely any reason to do
so. The software shipped with this product allows you to change
your modem’s configuration and to control the communications
features easily. Summaries of AT commands and S registers have
been included in this manual primarily for programmers and in the
interest of tradition and completeness. The use of AT commands
and S registers is neither required nor recommended for the
average user.
This owner’s manual is organized as follows:
Introduction (this section) lists the items you will need to use the
modem.
Installation (Chapter 1) explains how to install the modem.
Using the Faxmodem (Chapter 2) provides tips for setting up
your software.

ComStar SVD Owner’s Manual 6
Problems and Solutions (Chapter 3) provides information to
assist you if you have problems.
The Appendixes provide additional information for a number of
topics including setting the modem’s audio jumpers, as well as
tables that summarize AT commands and S registers.
Follow the Quick Start guide’s instructions for installation of
software that is included with this product. If you have questions
that are not answered in the Quick Start guide, follow the
instructions provided with your voice, fax, and data
communications software to install and use those programs.
What You Need to Use Your ComStar SVD
Make sure that you have received the following items:
Q Your ComStar SVD hardware (referred to in this manual as a
“modem” or “faxmodem”)
Q Phone cord
Q External speaker
Q Microphone with stand
Q A CD-ROM containing voice/fax/data software and other
software, documentation, and customer support information.
Q Voice/fax/data software on floppy disks, in case you don’t
have a CD-ROM drive. These floppies also contain some
helpful installation utilities for non-Plug and Play systems.
Q Packet of free and reduced-price online service offers.
To use the modem, you also need the following:
Q A computer with an available half- or full-size IBM PC-
compatible 16-bit ISA Bus slot.
Q A tool, if necessary, for removing and putting back the
computer cover. (See your computer’s manual.)
Q A telephone line connection (typically, a wall-mounted
telephone jack or socket) that lets you plug in a single-line
telephone.

Introduction 7
Documentation Conventions
QIn this manual we may use the terms “faxmodem,” “modem,” and
“product” interchangeably to refer to ComStar SVD. Occasionally
you may find that other manuals use the term “modem board” or
“card” to refer to the modem.
QCommands and command examples described in this guide
appear in bold type. For example: To reset the modem, type ATZ
and press Enter.
Occasionally, we insert spaces between commands to make a
command line easier to read. You can type the command line
with or without spaces between commands as long as the
command line does not exceed 40 characters.
Q“
0
” in a command line indicates the number zero, not the letter O.

ComStar SVD Owner’s Manual 8
Chapter 1 Installation
CAUTION!
Do not handle any internal modem card when the phone
line is plugged into it. The voltages present when the line
is ringing are potentially harmful.
If you need to remove the card for any reason, simply remove
the phone line from the internal card before handling it.
7R,QVWDOO\RXU)D[PRGHP7R,QVWDOO\RXU)D[PRGHP
Before you start the hardware installation, turn your computer
off and unplug it. Don't plug it back in or turn it on until you
complete the faxmodem hardware installation. Remember,
your computer should be located near a phone jack.
Take the cover off your computer. This is a little different for
every computer. If you are not familiar with the procedure,
consult your computer's manual for more detailed instruc-
tions.
Locate an available 16-bit slot (see the illustration on the next
page).
Note that the faxmodem has two sections of gold connecting
fingers. A 16-bit slot has double connectors to match the
fingers.
Unscrew and remove the metal cover plate on the rear of the
computer that lines up with the 16-bit slot. This plate is similar
to the bracket on the faxmodem.
Put the plate and screw aside.
Plug the faxmodem firmly into the 16-bit slot. Be sure that the
bracket is lined up properly, then screw the bracket into the
computer with the screw you removed with the cover plate.
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2
3
4
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Chapter 1 Installation 9
Replace the computer cover.
Connect the telephone cord. Plug one end of the phone cord
into the jack marked LINE. Plug the
other end into a phone jack (where
you would normally connect a phone).
You can also plug a regular
telephone into the jack marked
PHONE. The telephone shares the
phone line with the faxmodem and
works as a normal telephone when
the faxmodem is not in use.
6
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LINE
PHONE
MIC
SPK
7

ComStar SVD Owner’s Manual 10
Assemble the microphone. Put the two halves of the
microphone holder together, and then slide the holder into the
slot on the microphone stand. Finally, slide the microphone
stem into the groove on the microphone stand. Refer to the
assembly drawing on the next page.
Insert the microphone plug into the jack marked MIC and then
insert the external speaker plug into the jack marked SPK.
The diagram on the next page shows the connections.
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