3Com U.S. Robotics 56K Voice Manuale utente

56K Voice Faxmodem Internal

User’s Guide

PN 1.024.1644-00

This manual covers installation and operating instructions for the following

3Com U.S. Robotics modem:

56K* Voice Faxmodem Internal

* IMPORTANT! In accordance with the ITU standard for V.90 transmissions, this modem

is capable of 56 Kbps downloads. However, the download speeds you experience

may be lower due to varying line conditions and other factors. Uploads from users to

server equipment travel at speeds up to 31.2 Kbps. An analogue phone line compatible

with the ITU V.90 standard or 3Com’s proprietary 56K technology, and an Internet

provider or corporate host site with the ITU V.90 standard or 3Com’s proprietary 56K

technology are necessary for these high-speed downloads. The ITU V.90 standard

was officially determined in February, 1998 and is expected to be ratified in

September, 1998. See www.3com.com/56k for details.

The material contained in this document is for information purposes only

and is subject to change without notice. 3Com 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.

No part of this document may be reproduced, transmitted, transcribed, or

stored in a retrieval system in any form or by any means, mechanical,

magnetic, electronic, optical, chemical or otherwise, without the written

permission of 3Com.

3Com assumes no responsibility for errors or omissions in this manual.

Nor does 3Com make any commitment to update the information

contained herein.

3Com,the 3Com logo, and U.S. Robotics are registered trademarks of

3Com Corporation or its subsidiaries. Windows is a registered trademark

of Microsoft Corp. Any other trademarks, trade names, service marks,or

service names owned or registered by any other company and used in

this manual are the property of their respective owners.

Table of Contents

WELCOME TO 56K INFORMATION ACCESS......................................1

PRODUCT FEATURES.......................................................................2

INTERNAL MODEM INSTALLATION WITH WINDOWS 95...................5

DETERMINING AVAILABLE RESOURCES....................................................5

DETERMINING YOUR VERSION OF WINDOWS 95.........................................6

PLUG AND PLAY INSTALLATION............................................................7

HOW TO PREPARE FOR PLUG AND PLAY INSTALLATION.............................7

HOW TO INSERT THE MODEM INTO THE COMPUTER .....................................8

INSTALLING MODEM DRIVERS WITH WINDOWS 95:

Versions 950 and 950a (Moving Through the “New Hardware

Found” Screens)...................................12

Version 950b (Using the Update Device Driver Wizard Screens)....16

INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X ...............20

A Word about COM Ports and IRQs............................................20

How to Change the Modem’s Settings..........................................21

How to Insert the Modem into the Computer.................................23

SOFTWARE INSTALLATION...........................................................29

WINDOWS 95..................................................................................29

WINDOWS 3.X.................................................................................29

TYPE OF MODEM..............................................................................30

INITIALISATION STRING ......................................................................30

FLOW CONTROL..............................................................................30

TROUBLESHOOTING......................................................................31

SUPPORT RESOURCES..................................................................39

ARE YOU STILL HAVING PROBLEMS?...................................................40

IF YOU MUST RETURN THE MODEM TO US.............................................40

GLOSSARY.....................................................................................41

Table of Contents

TECHNICAL REFERENCE ................................................................51

TYPING COMMANDS..........................................................................51

BASIC DATA COMMANDS ..................................................................51

EXTENDED DATA COMMANDS.............................................................57

S-REGISTERS..................................................................................64

FAX COMMANDS .............................................................................71

THE SERIAL INTERFACE (CABLE INFORMATION).......................................73

REGULATORY (CE COMPLIANCE)...................................................74

ELECTROMAGNETIC COMPATIBILITY......................................................74

RINGER EQUIVALENCE NUMBER...........................................................74

LIMITED WARRANTY......................................................................75

Welcome to 56K*Information Access

56K Voice Faxmodem Internal -User’s Guide 1

The International Telecommunications Union (ITU) decides the technical

protocols that communications devices must use to operate with each

other. Modems that comply with ITU standards can “talk” to other

standards-compliant modems and fax machines worldwide.

The ITU has determined a worldwide standard for 56K modem technology.

With a U.S. Robotics modem, you can get 56K Internet access from any

service provider who offers the ITU V.90 standard or 3Com’s proprietary

56K technology. 3Com is working with providers everywhere to quickly

upgrade their service to the ITU V.90 standard.

∗In accordance with the ITU standard for V.90 transmissions, this modem is capable of

56 Kbps downloads. However, the download speeds you experience may be lower due

to varying line conditions and other factors. Uploads from users to server equipment

travel at speeds up to 31.2 Kbps. An analogue phone line compatible with the ITU V.90

standard or 3Com’s proprietary 56K technology, and an Internet provider or corporate

host site with the ITU V.90 standard or 3Com’s proprietary 56K technology are

necessary for these high-speed downloads. The ITU V.90 standard was officially

determined in February, 1998 and is expected to be ratified in September, 1998. See

www.3com.com/56k for details.

Product Features

56K Voice Faxmodem Internal -User’s Guide2

Modulation Schemes

ITU-T V.90

x2™ technology (Download up to 56kbps, and Upload using V.34)

ITU-T V.34+

ITU-T V.34

ITU-T V.32bis

ITU-T V.32

ITU-T V.23

ITU-T V.22bis

ITU-T V.22

Bell 212A

ITU-T V.21

Bell 103

Error Control and Data Compression Schemes

ITU-T V.42

ITU-T V.42bis

MNP 2-5

Fax Modulation Schemes

ITU-T V.17

ITU-T V.29

ITU-T V.27ter

ITU-T V.21

Fax Standards

EIA 578 Class 1 FAX

EIA 592 Class 2.0 FAX

Front Channel Link Rates (Download Speeds)

28000, 29333, 30666, 32000, 33333, 34666, 36000, 37333, 38666, 40000,

41333, 42666, 44000, 45333, 46666, 48000, 49333, 50666, 52000, 53333,

54666, 56000, 57333

Product Features

56K Voice Faxmodem Internal -User’s Guide 3

Back Channel Link Rates (Upload Speeds)

4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400,

28800, 31200

V.34+ Link Rates

4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400,

28800, 31200, 33600

V.32bis Link Rates

4800, 7200, 9600, 12000, 14400

Additional Link Rates

300, 1200/75 (V.23), 1200, 2400

Fax Link Rates

2400, 4800, 7200, 9600, 12000, 14400

Product Features

56K Voice Faxmodem Internal -User’s Guide4

Flash ROM Upgradable

56K Voice Faxmodem Internal supports software download through flash

memory. You can obtain the latest features by downloading updates

quickly and easily.

Speakerphone*

With the addition of an inexpensive set of externally powered speakers,

your new voice modem provides all the convenience of a full-duplex

speakerphone. Unlike many half-duplex speakerphones, your modem

allows you to converse normally without annoying echoes and distortion.

Simply plug the speakers and microphone into the jacks on the modem

identified with the appropriate icons, and you are ready to go.

Personal Voice Mail*

Personal Voice Mail turns your modem into a full-featured messaging

system. Enjoy the convenience of professional voice mail in your home or

office for a fraction of the cost. With Personal Voice Mail, you can record

custom greetings, receive messages, and set up multiple voice

“mailboxes”. You can even access your voice messages remotely. Your

modem will automatically detect incoming fax/voice/data calls and route

them appropriately.

*A headset, external powered speakers, or sound card (with audio cable)

is required to utilise all voice features, including hands-free

speakerphone.

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