Paradyne 2001, DataPort 2001 User Manual

You have accessed an
older version of a
Paradyne product
document.

Paradyne is no longer a
subsidiary of A T&T. Any
reference to A T &T
Paradyne is amended to
read Paradyne
Corporation.

AREA CODE CHANGE

Please note that the area
code for Paradyne
Corporation in Largo,
Florida has changed from
813 to 727.

For any Paradyne
telephone number that
appears in this manual
with an 813 area code,
dial 727 instead.

3730-A2-GB91-00

Issue 1

April 1994

DataPort 2001

Multimedia Communicator

User’s Guide

AT&T Paradyne Technical Support 800-237-0016
AT&T Paradyne BBS 813-532-5254
QuickLink II Fax Technical Support 714-362-5810

  

COPYRIGHT E 1994 AT&T Paradyne Corporation*

All Rights Reserved
Printed in U.S.A.

Notice

This publication is protected by federal copyright law. No part of this publication
may be copied or distributed, transcribed, stored in a retrieval system, or
translated into any human or computer language in any form or by any means,
electronic, mechanical, magnetic, manual or otherwise, or disclosed to third
parties without the express written permission of A T&T Paradyne Corporation,
8545 126th Ave. N., P.O. Box 2826, Largo, Florida 34649-2826.

AT&T Paradyne Corporation makes no representation or warranties with
respect to the contents hereof and specifically disclaims any implied
warranties of merchantability or fitness for a particular purpose. Further , AT&T
Paradyne Corporation reserves the right to revise this publication and to make
changes from time to time in the contents hereof without obligation of AT&T
Paradyne Corporation to notify any person of such revision or changes.

Changes and enhancements to the product and to the information herein will
be documented and issued as a new release or a Technical Update Memo
(TUM) to this manual.

A Reader’s Comments form is provided at the front of this publication and your
comments are appreciated. If the form has been removed, address comments
to AT&T Paradyne Corporation, Technical Publications, 8545 126th Ave. N.,
P.O. Box 2826, Largo, Florida 34649-2826. AT&T Paradyne may use or
distribute any of the information supplied, as appropriate, without incurring any
obligation whatsoever.

Regulatory Approvals

FCC Registration Number: See certification label on DataPort 2001
Ringer Equivalency Number (REN): See certification label on DataPort 2001
DOC Registration Number: See certification label on DataPort 2001
Load Number (LN): See certification label on DataPort 2001
UL: Listed to UL 1950
CSA: Certified to CSA 950
The Universal Service Order Code (USOC) for Permissive mode is RJ11C.

*AT&T Paradyne is a member of AT&T’s Communications Products group.

Trademarks

Apple, AppleTalk, and Macintosh are registered trademarks of Apple

Computer, Inc.

AT is a trademark of Hayes Microcomputer Products, Inc.
BitFax is a trademark of BIT Software, Inc.
Carbon Copy Plus, Microcom Networking Protocol, and MNP are

trademarks of Microcom, Inc.

Close-Up is a registered trademark of Norton-Lambert Corporation.
CROSSTALK, CROSSTALK MK.4, and Remote are registered trademarks

of Digital Communications Associates.

DataBurst and DataPort are trademarks of AT&T.
DynaComm is a registered trademark of Future Soft Engineering, Inc.
EclipseFAX is a trademark of Eclipse Systems, Inc.
Enhanced Throughput Cellular and ETC are trademarks of AT&T.
FarSite is a registered trademark of DataBeam Corporation.
FaxIT is a trademark of SofNet, Inc.
FaxSTF is a registered trademark of STF Technologies, Inc.
GEnie is a service trademark of General Electric Corporation.
Hayes is a registered trademark of Hayes Microcomputer Products, Inc.
HyperACCESS/5 is a registered trademark of Hilgraeve, Inc.
IBM is a registered trademark of International Business Machines

Corporation.

MicroPhone II and MicroPhone Pro are trademarks of Software Ventures

Corporation.

Mirror III is a registered trademark of SoftKlone Distributing Corporation.
Microsoft and MS-DOS are registered trademarks of Microsoft Corporation.
PC Anywhere is a registered trademark of Dynamic Microprocessor

Associates, Inc.

Procomm and Procomm Plus are registered trademarks of DATASTORM

TECHNOLOGIES, Inc.

QuickLink II and QuickLink II Fax are trademarks of Smith Micro Software,

Inc.

Relay Gold is a registered trademark of RELAY Communications, Inc.
SmartCom III is a registered trademark of Hayes Microcomputer Products,

Inc.

TALK

Show

is a registered trademark of Future Labs, Inc.

VoiceSpan is a trademark of AT&T.
White Knight is a registered trademark of the FreeSoft Company.
Wildcat is a trademark of Mustang Software, Inc.
Windows is a trademark of Microsoft Corporation.
WINFAX is a trademark of Delrina Technology, Inc.

All other product names are copyrighted and registered trademarks of their
respective owners.

Warranty

AT&T Paradyne provides a limited warranty to this product. Refer to
Appendix E,

Limited Warranty

, for more information.

EMI Warnings

!

WARNING:

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 installation. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and
used in accordance with the instruction, may cause harmful
interference 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:

G

Reorient or relocate the receiving antenna.

G

Increase the separation between the equipment and
receiver.

G

Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.

G

Consult the dealer or an experienced radio/TV technician
for help.

The authority to operate this equipment is conditioned by the
requirement that no modifications will be made to the
equipment unless the changes or modifications are expressly
approved by AT&T Paradyne.

A shielded RS-232 cable is required for the DataPort 2001.

!

WARNING:

To Users of Digital Apparatus in Canada:
This digital apparatus does not exceed the Class B limits for

radio noise emissions from digital apparatus set out in the
radio interference regulations of the Canadian Department of
Communications.

Le presént appareil numérique n’émet pas de bruits
radioélectriques dépassant les limites applicables aux
appareils numériques de la Classe B prescrites dans le
règlement sur le brouillage radioélectrique édicté par Le
Ministère des Communications du Canada.

Important Safety Instructions

1. Read and follow all warning notices and instructions
marked on the product or included in the manual.

2. Slots and openings in the cabinet are provided for
ventilation. To ensure reliable operation of the product
and to protect it from overheating, these slots and
openings must not be blocked or covered.

3. Do not allow anything to rest on the power cord and
do not locate the product where persons will walk on
the power cord.

4. Do not attempt to service this product yourself, as
opening or removing covers may expose you to
dangerous high voltage points or other risks. Refer all
servicing to qualified service personnel.

5. General purpose cables are provided with this
product. Special cables, which may be required by the
regulatory inspection authority for the installation site,
are the responsibility of the customer.

6. When installed in the final configuration, the product
must comply with the applicable Safety Standards and
regulatory requirements of the country in which it is
installed. If necessary, consult with the appropriate
regulatory agencies and inspection authorities to
ensure compliance.

7. A rare phenomenon can create a voltage potential
between the earth grounds of two or more buildings. If
products installed in separate buildings are
interconnected, the voltage potential may cause a
hazardous condition. Consult a qualified electrical
consultant to determine whether or not this
phenomenon exists and, if necessary, implement
corrective action prior to interconnecting the products.

In addition, if the equipment is to be used with
telecommunications circuits, take the following
precautions:

– Never install telephone wiring during a lightning storm.
– Never install telephone jacks in wet locations 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 (other than a cordless type)

during an electrical storm. There may be a remote risk
of electric shock from lightning.

– Do not use the telephone to report a gas leak in the

vicinity of the leak.

Government Requirements and
Equipment Return

Certain governments require that instructions pertaining to
modem connection to the public switched telephone network be
included in the installation and operation manual. Specific
instructions are listed in the following sections.

United States

NOTICE TO USERS OF THE PUBLIC SWITCHED TELEPHONE
NETWORK

1. This equipment complies with Part 68 of the FCC rules. On
the equipment is a label that contains, among other
information, the FCC registration number and ringer
equivalence number (REN) for this equipment. If
requested, this information must be provided to the
telephone company.

2. The Universal Service Order Code (USOC) associated with
the services the equipment is to be connected is RJ11C.

3. The Ringer Equivalence Number (REN) is used to determine
the quantity of devices which may be connected to the
telephone line. Excessive RENs on the telephone line may
result in the devices not ringing in response to an incoming
call. In most, but not all areas, the sum of the RENs should
not exceed five (5.0). To be certain of the number of devices
that may be connected to the line, as determined by the total
RENs, contact the telephone company to determine the
maximum RENs for the calling area.

4. If the modem causes harm to the telephone network, the
telephone company will notify you in advance that temporary
discontinuance of service may be required. But if advance
notice is not practical, the telephone company will notify the
customer 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.

5. The telephone company may make changes in its facilities,
equipment, operations, or procedures that could affect the
operation of the equipment. If this happens, the telephone
company will provide advance notice in order for you to
make the necessary modifications in order to maintain
uninterrupted service.

6. If you are experiencing technical difficulties with your
modem, please try to verify the problem before contacting
AT&T Paradyne technical assistance. AT&T Paradyne
technical support is available by calling 1 [phone].

If you still experience trouble with your modem within the
first 30 days of purchase, return it to its place of purchase.
After 30 days, contact AT&T Paradyne technical support
(1-800-237-0016) for product return information and a
Return Material Authorization (RMA) number. Do not return

product without an RMA number.

To return your modem, prepare a note with the following
information:

Your Name (or Company)
Address for Return Shipment
Telephone Number
Contact Name (if different from above)
Billing Address (if different from above)
Purchase Order Number Associated with the Equipment
Brief Description of the Problem

Package the modem carefully for shipping, including the
note containing the necessary information. Mark the
package to the attention of the Repair Center, and send it to
the address below:

AT&T Paradyne
8550 Ulmerton Road
Largo, Florida 34641
Attn: Repair Center, Building B

For warranty information, refer to Appendix E.
If the trouble is causing harm to the telephone network, the

telephone company may request you remove the equipment
from the network until the problem is resolved.

7. No repairs may be made by the end use customer.

8. This modem cannot be used on public coin service provided
by the telephone company. Connection to Party Line Service
is subject to state tariffs. (Contact the state public utility
commission, public service commission or corporation
commission for information.)

9. The Telephone Consumer Protection Act of 1991 makes it
unlawful for any person to use a computer or other
electronic device to send any message via a telephone fax
machine unless such message clearly contains in a margin
at the top or bottom of each transmitted page or on the first
page of the transmission, the date and time it is sent and an
identification of the business or other entity, or other
individual sending the message and the telephone number
of the sending machine of such business, or other entity, or
individual.

In order to program this information, follow the steps outlined
in the manual supplied with your fax software.

10. An FCC-compliant telephone cord with modular plugs is
provided with this equipment. This equipment is designed to
be connected to the telephone network or premises wiring
using a compatible modular jack which is Part 68 compliant.

Canada

NOTICE TO THE USERS OF THE CANADIAN PUBLIC
SWITCHED TELEPHONE NETWORK

The Canadian Department of Communications label identifies
certified equipment. This certification means that the equipment
meets certain telecommunications network protective,
operational and safety requirements. The Department does not
guarantee the equipment will operate to the user’s satisfaction.

Before installing this equipment, users should ensure that it is
permissible to be connected to the facilities of the local
telecommunications company. The equipment must also be
installed using an acceptable method of connection. In some
cases, the company’s inside wiring associated with a single line
individual service may be extended by means of a certified
connector assembly (telephone extension cord). The customer
should be aware that compliance with the above conditions may
not prevent degradation of service in some situations.

Repairs to certified equipment should be made by an authorized
Canadian maintenance facility designated by the supplier. Any
repairs 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 line 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.

The Load Number for this equipment is listed on the label affixed
to the equipment. The Load Number (LN) assigned to each
terminal device denotes the percentage of the total load to be
connected to a telephone loop which is used by the device to
prevent overloading. The termination on a loop may consist of
any combination of devices subject only to the requirement that
the total of the Load Numbers of all devices does not exceed

100.
Canadian customers, if your equipment is in need of repair

within the first 30 days of purchase, return it to its place of
purchase. If repairs are needed after 30 days, call 1 (800)
237-0016 or arrange to have your equipment repaired by
contacting Inventory Control Office, 100 York Blvd., Suite 200,
Richmond Hill, Ontario L4B 1J8, telephone [phone].

Contents

1 Introduction

G

Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

G

DataPort 2001 Modes 1-3. . . . . . . . . . . . . . . . . . . . . . . . . .

G

DataPort 2001 Package 1-4. . . . . . . . . . . . . . . . . . . . . . . .

Required Equipment 1-5. . . . . . . . . . . . . . . . . . . . . .

G

Important Telephone Numbers 1-6. . . . . . . . . . . . . . . . . .

AT&T Technical Support 1-6. . . . . . . . . . . . . . . . . . .

QuickLink II Technical Support 1-6. . . . . . . . . . . . .

2 Installation

G

Installation 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

G

Testing Your Connections 2-3. . . . . . . . . . . . . . . . . . . . . . .

Computer Connection Test 2-3. . . . . . . . . . . . . . . . .

Dial-Line Connection Test 2-4. . . . . . . . . . . . . . . . . .

G

QuickLink II Fax Installation Overview 2-6. . . . . . . . . . . .

3 Using AT Commands

G

An Overview of AT Commands 3-1. . . . . . . . . . . . . . . . . .

AT Command Guidelines 3-2. . . . . . . . . . . . . . . . . .

Contents

4 Troubleshooting

G

Troubleshooting 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Phone Miswired 4-1. . . . . . . . . . . . . . . . . . . . . . . . . .

No Line Connection 4-1. . . . . . . . . . . . . . . . . . . . . . .

Command Entry 4-2. . . . . . . . . . . . . . . . . . . . . . . . . .

Dial 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Answer 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connect 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disconnect 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

File Transfer 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Character Format 4-7. . . . . . . . . . . . . . . . . . . . . . . . .

Rate 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fax 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

EC Light 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AppleTalk Remote Access (ARA) 4-9. . . . . . . . . . .

AT Command Recovery 4-10. . . . . . . . . . . . . . . . . . .

5 Using VoiceSpan

G

Configuring the DataPort 2001 for VoiceSpan 5-1. . . . .

G

Starting a VoiceSpan Session 5-1. . . . . . . . . . . . . . . . . . .

G

DataBurst 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

G

Data-Only Mode 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

G

Ending a VoiceSpan Session 5-11. . . . . . . . . . . . . . . . . . . .

G

VoiceSpan Alert Sounds 5-13. . . . . . . . . . . . . . . . . . . . . . . .

Contents

A Front Panel Status Lights

B AT Commands and S-Registers

G

AT Commands and S-Registers B-1. . . . . . . . . . . . . . . . .

G

Call Establishment Rules B-36. . . . . . . . . . . . . . . . . . . . . . .

G

Data Modes B-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C Communications and Fax Software Settings

G

Guidelines for All Software C-1. . . . . . . . . . . . . . . . . . . . . .

G

Guidelines for Specific Software C-3. . . . . . . . . . . . . . . . .

AppleTalk Remote Access Script for

Macintosh C-3. . . . . . . . . . . . . . . . . . . . . . . . . . .

BitFax for Windows Ver. 2.0 C-3. . . . . . . . . . . . . . . .

Carbon Copy Plus Ver. 6.0 C-3. . . . . . . . . . . . . . . . .

cc:Mail Remote C-4. . . . . . . . . . . . . . . . . . . . . . . . . . .

Close-Up Ver. 4.0 C-4. . . . . . . . . . . . . . . . . . . . . . . . .

CROSSTALK Mk.4 Ver. 2.1 C-4. . . . . . . . . . . . . . . .

CROSSTALK for Windows Ver. 1.2.2 C-4. . . . . . . .

CROSSTALK Remote 2 Ver. 2.1.0 C-5. . . . . . . . . .

DynaComm Ver. 3.0 C-5. . . . . . . . . . . . . . . . . . . . . .

EclipseFAX Ver. 1.20 C-5. . . . . . . . . . . . . . . . . . . . . .

FAXit for Windows Ver. 2.15D C-5. . . . . . . . . . . . . .

FaxSTF Ver. 3.0 (Macintosh) C-6. . . . . . . . . . . . . . .

First Class (Macintosh) C-6. . . . . . . . . . . . . . . . . . . .

Front Door BBS C-6. . . . . . . . . . . . . . . . . . . . . . . . . .

HyperACCESS/5 C-6. . . . . . . . . . . . . . . . . . . . . . . . .

MicroPhone II Ver. 4.1 and MicroPhone

Pro Ver. 1.0 (Macintosh) C-7. . . . . . . . . . . . . .

MicroPhone II for Windows Ver. 2.01 C-7. . . . . . . .

Microsoft Windows Terminal Ver. 3.1 C-7. . . . . . . .

Mirror III Ver. 2.2 C-7. . . . . . . . . . . . . . . . . . . . . . . . . .

PC Anywhere Ver. 4.5 C-8. . . . . . . . . . . . . . . . . . . . .

Contents

Procomm Plus Ver. 2.0 C-8. . . . . . . . . . . . . . . . . . . .

Procomm Plus for Windows Ver. 1.0 C-8. . . . . . . .

Qmodem C-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

QuickLink II Fax for Windows Ver 1.4 and

Quicklink II Fax for DOS Ver. 3.0 C-9. . . . . . .

QuickLink II Fax for Macintosh Ver. 3.3 C-9. . . . . .

Relay Gold for Windows Ver. 5.0 C-9. . . . . . . . . . . .

SmartCom III C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T ALK

Show

Ver. 1.01 C-10. . . . . . . . . . . . . . . . . . . . . .

Telix Ver. 3.21 C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . .

White Knight Ver. 11.12 (Macintosh) C-10. . . . . . . . .

Wildcat BBS C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WINFAX Pro Ver. 2.0 C-11. . . . . . . . . . . . . . . . . . . . . .

D Technical Specifications

E Limited Warranty

F Result Codes

GL Glossary

IN Index

Figures

1 Introduction

G

1-1 DataPort 2001 Multimedia Communicator 1-1. . . .

G

1-2 DataPort 2001 Modes 1-3. . . . . . . . . . . . . . . . . . . . .

G

1-3 DataPort 2001 Package 1-4. . . . . . . . . . . . . . . . . . .

2 Installation

G

2-1 DataPort 2001 Connections 2-1. . . . . . . . . . . . . . . .

A Front Panel Status Lights

G

A-1 DataPort 2001 Front Panel Status Lights A-1. . . . . .

Tables

5 Using VoiceSpan

G

5-1 Initiating a VoiceSpan Session 5-4. . . . . . . . . . . . . .

G

5-2 Data-Only Mode 5-9. . . . . . . . . . . . . . . . . . . . . . . . . .

G

5-3 Ending a VoiceSpan Session 5-12. . . . . . . . . . . . . . .

G

5-4 VoiceSpan Alert Sounds 5-14. . . . . . . . . . . . . . . . . . .

A Front Panel Status Lights

G

A-1 LED Descriptions A-2. . . . . . . . . . . . . . . . . . . . . . . . .

B AT Commands and S-Registers

G

B-1 AT Command and S-Register List B-2. . . . . . . . . . .

G

B-2 Call Establishment Rules B-36. . . . . . . . . . . . . . . . . .

G

B-3 Phone States and Data Modes B-37. . . . . . . . . . . . .

D Technical Specifications

G

D-1 DataPort Technical Specifications D-1. . . . . . . . . . .

F Result Codes

G

F-1 Result Codes F-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

1

The AT&T DataPort 2001 multimedia communicator (Figure
1-1) connects to a standard telephone, a standard telephone
line, and DTE (Data Terminal Equipment), usually a personal
computer, permitting you to communicate with a remote user
who has similar equipment. The DataPort 2001 has the
capabilities of a general-purpose V.32 bis modem; over the
same phone line you use your telephone to talk to someone
with, you can use your DataPort 2001 to send data. Unlike a
modem, the DataPort 2001 with VoiceSpant lets you to do both
at the same time.

VoiceSpan permits the simultaneous transmission of full-duplex
audio and full-duplex data over ordinary telephone lines.
VoiceSpan does not use the conventional low bit rate speech
encoding methods usually associated with audio transmission; it
successfully reproduces voices, music, sound effects, and
dialing tones, even in noisy environments.

493-14365

EC HS CD OH RD SD TR MR

DataPort 2001

Figure 1-1. DataPort 2001 Multimedia Communicator

The following are some of the features of the DataPort 2001
multimedia communicator:

G

High-quality full-duplex audio with simultaneous
4800 bps full-duplex asynchronous data over the existing
worldwide telephone network

G

Instant automatic or manual switching between data-only
mode (up to 14,400 bps) and VoiceSpan

G

Automatic call discrimination between VoiceSpan and
standard data calls

G

Auto-Call, Auto-Answer, Manual-Call, and
Manual-Answer

G

Inherent voice privacy protection (with VoiceSpan)

G

Compatible with any standard communications software

G

Compatible with any standard tone-dial telephone

In addition, the DataPort 2001 has all the capabilities of a
sophisticated high-speed modem:

G

Dial-line rates (data rates over the telephone line) from
14,400 bps (V.32 bis) to 75 bps (V.23)

G

DTE Data rates (between the computer and the DataPort

2001) from 57,600 bps to 300 bps

G

CCITT V.42 and MNP 4-2 error control protocols, and
CCITT V.42 bis and MNP 5 data compression protocols

G

Group 3, Class 1 and Class 2 fax

G

CCITT V.17 (14,400 bps), V.29 (9600 bps), and V.27 ter
(4800 bps) fax modulations

G

Data/Fax call discrimination – allows the modem to
determine if the incoming call is data or fax

G

Enhanced Throughput Cellular (ETC) protocol for
communications over cellular telephone channels

G

Hayesr AutoSync support – eliminates the need for an
additional synchronous board in your PC (Requires an
AutoSync compatible communications package)

G

Free QuickLink II Fax communications and fax
software (excluded in some models)

G

Five-year warranty

DataPort 2001 Modes

Figure 1-2 shows the various communication modes possible
with the DataPort 2001.

Figure 1-2. DataPort 2001 Modes

DataPort 2001 Package

Figure 1-3 shows all items shipped with the DataPort 2001.

Figure 1-3. DataPort 2001 Package

Your package contains

G

One DataPort 2001 multimedia communicator

G

One modular 7-foot telephone cord

G

A high-speed, hardware handshake cable (Macintosh

r

only)

G

One ac to dc power transformer

G

A diskette containing QuickLink II Fax data/fax software
(excluded in some models)

G

A QuickLink II Fax user’s guide (excluded in some
models)

G

A DataPort 2001 user’s guide with Warranty Card

Additional documentation may be included as required.

Required Equipment

The DataPort 2001 can be connected to the serial connector of
either an IBMr AT-compatible personal computer or an Apple

r

Macintosh computer. For proper operation, you must have the
following:

G

A serial cable to connect the modem to your PC. (For
Macintosh computers, a serial cable is shipped with the
modem.)

G

The cable must have one male 25-pin connector on one
end to attach to the DataPort 2001, and either a 25-pin
or 9-pin serial connector on the other end to attach to an
IBM AT-compatible PC. (Look at the connector on the
rear of the PC to determine its size and whether or not it
is male or female.)

G

A telephone outlet.

G

A telephone with a modular telephone cord. (This is not
required to use the DataPort 2001 as a standard fax
modem. It is required if you wish to make use of the
VoiceSpan feature.)

Important Telephone Numbers

AT&T offers a dial-in Bulletin Board System (BBS) that provides
information on the DataPort 2001 multimedia communicator,
including documentation updates and software initialization
strings. The telephone number for the BBS is 813-532-5254.

If you have questions about our products, feel free to dial in and
leave a message with our Dial Technical Support.

AT&T Technical Support

If you wish to speak directly to a Technical Support
representative, dial 1-800-237-0016. To assist you better, please
prepare a list of the problems you are experiencing, your
equipment and its configuration, the software you are using, and
any attempts you have made to correct the problem.

If the DataPort 2001 needs to be returned within the first
30 days of purchase, then return it to the place of purchase.

If it is necessary for you to return your DataPort 2001 after
30 days of purchase, you may return it to the place of purchase,
or contact 1-800-237-0016 for product return information and an
RMA number. Do not return product without an RMA
number. The address for the repair center is listed in Step 6 of
the

Government Requirements and Equipment Return

section in

the front of this guide.

QuickLink II Technical Support

If you have questions about the installation or operation of
QuickLink II Fax software, please contact Smith Micro Software,
Inc. at 714-362-5810.

Installation

2

This chapter describes installation procedures for the DataPort
2001 multimedia communicator. Please take a minute to review
these procedures before installing your DataPort 2001.

Use Figure 2-1 and the following procedures to connect your
DataPort 2001 to either an Apple Macintosh or IBM
AT-compatible PC.

Figure 2-1. DataPort 2001 Connections

1. Turn off the computer.

2. Connect the shielded serial cable to the modem and

computer.

Connect the serial cable’s DB25 male connector to the
connector labeled COMPUTER on the rear of the DataPort

2001. (PC users must supply a serial cable. The Macintosh
version of the DataPort 2001 is shipped with a serial cable.)

Next, attach the other end of the serial cable to the
computer’s serial connector.

3. Connect the telephone.
The connector labeled PHONE is used to attach a telephone

to your DataPort 2001. This allows you to have use of the
telephone for normal voice communications when the
DataPort 2001 is not in use, or for simultaneous audio and
data communication when VoiceSpan is active.

To connect the telephone to your DataPort 2001, plug the
telephone’s modular cord into the connector labeled
PHONE.

To comply with FCC rules, only FCC Part 68 registered,
non-data devices may be connected to the DataPort 2001’s
PHONE jack.

4. Connect the line cord.
Plug one end of the modular telephone cord into the

connector labeled LINE on the rear of the DataPort 2001.
Plug the other end of the modular telephone cord into the
telephone wall outlet.

5. Plug in the ac power transformer.
Plug the power transformer into the socket labeled POWER

located on the rear of the DataPort 2001, and then plug the
ac transformer into a grounded ac power outlet.

Use only the power transformer provided with your DataPort

2001.

6. Turn your DataPort 2001 ON.

The DataPort 2001 will work only if the cables are connected as
previously described. If the DataPort 2001 detects that the
cables have been connected incorrectly, it sends the message
PHONE MISWIRED or NO LINE CONNECTION to your
computer. If you receive one of these messages, turn off the
DataPort 2001. Connect the cables properly, then turn the
DataPort 2001 back on.

Testing Your Connections

The purpose of this section is to verify both the connection
between the DataPort 2001 and the computer, and the DataPort
2001 and the dial line.

Computer Connection Test

1. Turn your computer ON.

2. If you are using the QuickLink II Fax software supplied

with your DataPort 2001, install and start the software. If
you already have other software installed on your
system that you would rather use, go to Step 3.

Follow the installation and start-up procedures described in
the QuickLink II Fax support documentation. An overview

of QuickLink II Fax installation can be found later in
this chapter.

Your QuickLink II Fax software is configured for the
DataPort 2001, but its documentation describes the base
software. Do not be alarmed by discrepancies between the
two. For example, the QuickLink II Fax manual states that
the default DTE rate is 2400 bps; for the DataPort 2001 the
rate is actually19,200 bps.

3. Start your communications program.
Refer to your software’s documentation for start-up

procedures.
If you decide not to use the QuickLink II Fax software, then

select the DataPort 2001 driver that appears in your
software. If the DataPort driver is not available, then try the
suggestions listed in Appendix C.

If your software is not mentioned in Appendix C, load the
QuickLink II Fax software and use it to dial into the AT&T
BBS. Updated information specific to your software may be
available on the BBS.

4. Test the computer connection by typing AT and then

pressing Enter.

The DataPort 2001 should respond with an OK. This
indicates that your DataPort 2001 and computer are
communicating correctly. Now test the connection between
your DataPort 2001 and the telephone line by following the
procedures in the

Dial-Line Connection Test

section.

If an OK does not appear, verify that the communications
software is configured for the correct COM port, and repeat
this step. The TR LED should be ON.

If the DataPort 2001 still does not respond, refer to
Chapter 4,

Troubleshooting

, for additional tips.

Dial-Line Connection Test

The following procedures test the connection of your DataPort
2001 to the dial telephone line. Step 1 verifies the dial-line
connection, and Step 2 allows you to dial the AT&T BBS and
logon as a new user.

1. Enter the dial string for the BBS.

TYPE:

ATDT 813-532-5254;h

(If you are using Pulse dialing, type ATDP instead of ATDT.)

PRESS:

Enter

The dial string consists of the dial command (ATD), the Tone
dial modifier (T), the telephone number (spaces and dashes
are not required, and are only used to enhance readability),
semicolon (;) modifier which allows additional commands to
be added to a single line, and the hang up (h) command
which disconnects the call.

If the DataPort 2001 is correctly connected, you will hear a
dial tone followed by the sound of the DataPort 2001 dialing
the telephone number. The OH (off-hook) light turns ON.
(For Pulse dialing, the OH light flashes as digits are dialed.)

The DataPort 2001 then hangs up and displays an OK. (The
OH light turns Off.)

This brief test indicates that your DataPort 2001 is correctly
connected to the telephone line. If you would like to register
on the AT&T BBS, proceed to Step 2.

If you do not hear a dial tone, make sure the telephone cord
is connected to both the DataPort 2001 and the telephone
wall outlet. Otherwise, refer to Chapter 4,

Troubleshooting

.

2. Dial the AT&T BBS and logon as a new user.

TYPE:

ATDT813-532-5254

(If your telephone system uses Pulse dialing (rotary) instead
of Tone dialing, type ATDP instead of ATDT.)

PRESS:

Enter

At this point, you hear the DataPort 2001 go off-hook; dial
the telephone number, and connect with another modem.

A series of high-pitched tones, which is the handshaking
process, defines this stage of the connection. (The
handshaking process occurs when the two modems
connect, and then spend a brief period deciding how to
transfer data, the speed of the transfer, and if error control is
used.)

After handshaking is negotiated, a CONNECT message
appears on your monitor (and scrolls out of view), and then
the AT&T Paradyne DataPort Technical Support banner
appears.

3. Enter your full name, city and state, information about

your computer, and password when prompted.

You are now logged on to the AT&T Paradyne BBS, and can
scan the BBS for documentation updates and general
information about your DataPort 2001 and other dial modem
products offered by AT&T.

QuickLink II Fax Installation
Overview

QuickLink II Fax is a communications and fax software package
that is provided at no charge with your DataPort 2001. It is
available in a Window/DOS or Macintosh version and is supplied
on a 3.5-inch diskette. Each version of software is thoroughly
tested by AT&T Paradyne to ensure compatibility with your
DataPort 2001.

The software, created by Smith Micro Software, Inc., provides
basic features and functionality for both data and fax
communications. It is intended to get your DataPort 2001 up and
running and will fulfill your basic communications needs.
However, if you require additional features that are common to
most high-end communications and fax packages, please
contact your local software vendor for information on other
software packages.

Before installing the software, make sure the DataPort 2001 is
connected to your computer and turned ON.

If you are installing the Windows version, insert the diskette into
your disk drive, select Run from the Windows File menu, and
enter a:\install or b:\install. Follow the instructions that appear
on your monitor.

If you are installing the DOS version, insert the diskette into your
disk drive, change to either drive a: or drive b:, and type install
at the DOS prompt. Follow the instructions that appear on your
monitor.

If you are installing the Macintosh version, insert the diskette
into your disk drive and select Installer from the QuickLink II
Fax diskette. Follow the instructions that appear on your
monitor.

For a list of commands supported by the DataPort 2001, refer to
Appendix B. If more information is required on a specific
command, download the AT command file from the BBS.

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3

Although the DataPort 2001 may be configured in a variety of
ways, its default configuration – the way it is when you first take
it out of the box – is proper for typical data communications
tasks. Moreover, software in your PC may automatically send
initialization and other command strings to the DataPort 2001 as
they are required. So you probably do not need a sophisticated
knowledge of the commands used to control and configure the
DataPort 2001. But you may need to know at least how to issue
such commands.

An Overview of AT Commands

The DataPort 2001 uses AT commands and S-Registers to
control its operation and firmware configuration.

In general, AT commands are responsible for instructing the
DataPort 2001 to do a task, while S-Registers are responsible
for determining how the AT command will perform that task. You
issue these commands to your DataPort 2001 from your PC
using communications software. (They also may be issued
directly from a dumb asynchronous terminal.) When a DataPort
2001 receives a command, it responds with a message, known
as a result code, that appears on your monitor.

For a list of commands supported by the DataPort 2001, refer to
Appendix B. If more information is required on a specific
command, download the AT command file from the AT&T
Paradyne BBS.

For a list of result codes and their meanings, refer to
Appendix F.

AT Command Guidelines

The following section lists guidelines for using AT commands.

G

AT commands must be entered while the DataPort 2001
is in either Command mode or (when the DataPort 2001
is online with another modem) online Command mode.

Command mode is an idle state that allows you to
modify the DataPort 2001’s operating parameters or
issue DataPort 2001 commands.

G

The escape sequence (which consists of three
consecutive plus characters — +++) is used to enter
online Command mode from Data mode. (Data mode is
a state where all entries made from the computer are
considered data and are transmitted and received
between DataPort 2001s.

To return to Data mode from online Command mode,
use the ATO command.

G

All commands (except the A/ repeat command and the
+++ escape sequence) must begin with the characters

AT (attention) and end by pressing the Enter key.

TYPE:

AT commands are entered using the following
format:

TYPE:

AT

Xn

Where: X

is the AT command or S-Register and n is the

specific value for that command.

PRESS:

Enter

G

The AT (or at) prefix can be upper- or lowercase, but the
modem will not recognize mixed case prefixes (At or aT).

G

The data character format (how your data is structured)
for the AT command set must be one of the following. It
can be set using your communications software:

– 8 data bits + no parity + 1 stop bit.
– 7 data bits + parity + 1 stop bit (parity can be odd,

even, mark, or space).

G

Commands can be entered one at a time or in strings
(several commands at once). Strings can have up to
40 characters after the AT prefix. Spaces, parentheses,
and hyphens are not considered characters.

G

Commands described in this manual with the suffix

n

have several options associated with them. For example,
in the L

n

command, L0 sets the speaker volume to Low
and L3 sets the speaker volume to High. If no value is
entered for the

n

suffix, the DataPort 2001 assumes a

zero (0) value (in this case, low volume).

G

Valid commands are acknowledged with numeric or word
result codes (unless the result codes have been
disabled using the Q1 command). Appendix F lists all
available result codes with numeric and word
equivalents.

Troubleshooting

4

Most modem problems are a result of incorrect cabling or
incorrect settings within your communications or fax software.
This chapter provides a list of common problems (P:) that you
may encounter, followed by likely solutions (S:).

Power

P: Your DataPort 2001 does not power ON.

S: Make sure that the AC power transformer is plugged into

an AC power source, that its cable is plugged firmly into the
Power input of the DataPort 2001, and that the DataPort
2001 is turned ON.

Phone Miswired

P: Your DataPort 2001 sends the message PHONE

MISWIRED to your computer.

S: Make sure that the cord leading from your telephone is

plugged firmly into the jack labeled PHONE.

No Line Connection

P: Your DataPort 2001 sends the message NO LINE

CONNECTION to your computer.

S: Make sure that the cord leading from the RJ11C wall outlet

is plugged firmly into the jack labeled LINE.

Command Entry

P: You enter commands from the keyboard, but nothing

appears on your monitor. (You type AT and nothing
happens.)

S: Make sure you have selected the same COM port that your

DataPort 2001 is connected to.

This can be done by holding down a keyboard character
and watching the DataPort 2001’s SD light to see if it
flashes. If it flashes as keys are pressed, the DataPort
2001 is receiving the data. Turn character echo ON as
described in the next solution.

S: Issue the ATE1 command (character echo ON) to make

sure that characters can be echoed back to your monitor.
An OK response should appear. Enter an AT and carriage
return to make sure characters are displayed on your
monitor.

S: Make sure that all AT commands are terminated with a

carriage return.

S: Make sure that the cable between the DataPort 2001 and

computer (PC) is a standard RS-232 cable that supports
flow control and modem control signals. If the cable is not
the correct type or has been cut or crushed, replace it. (Null
modem cables, also known as crossover cables, cannot be
used.) If you have a Macintosh, use the supplied serial
cable.

S: Make sure that your communications software has a valid

character format. Valid formats consists of 8 data bits with
no parity, or 7 data bits with even, odd, mark or space
parity.

S: Make sure that your software is set to a valid DTE rate. The

DataPort 2001s support DTE data rates from 57,600 bps to
300 bps.

S: Make sure that your communications software is offline and

in Terminal mode.

S: Your DataPort 2001 may be configured for synchronous

operation by the &M2 or &Q2 commands. To return to
asynchronous operation, refer to the

AT Command

Recovery

procedure at the end of this chapter.

Dial

P: Your DataPort 2001 is configured for DTR dialing (&M2

or &Q2), but does not dial. (This is used for
synchronous applications only.)

S: Verify that the telephone number stored in directory

location 1 is correct. Also verify that the computer is raising
DTR from Off to ON to initiate a dial. The state of DTR is
indicated by the TR light.

P: The message NO DIALTONE appears after dialing a

telephone number.

S: Make sure that the telephone cord is connected to the

DataPort 2001 and wall outlet. Dial the telephone number
again.

S: Attach a telephone directly to the wall outlet and verify that

a dial tone exists. If one does not, contact your local
telephone company.

S: Make sure that no additional characters are sent to the

DataPort 2001 during the connection process. The
DataPort 2001 automatically aborts the call if it receives
any.

S: Use the ATM1 or ATM2 command to turn the speaker ON

and listen for a dial tone. If no dial tone is heard, you may
have a bad telephone cord.

S: Disable the Dial Tone Detect command (X0, X1, and X3)

and dial the telephone number. This forces the DataPort
2001 to dial without detecting a dial tone on the telephone
line. This type of dialing is known as Blind Dialing.

Answer

P: Your DataPort 2001 does not answer.

S: Make sure the telephone cord is connected to the DataPort

2001’s LINE connector.

S: You may be using a communications/fax package that has

an Answer mode setting that only allows the DataPort 2001
to answer incoming fax calls. Change this setting to Data
and try the call again.

S: Attach a telephone to the wall telephone outlet and verify

that it rings during incoming calls.

S: Make sure that the Auto-Answer Ring Number configuration

option (ATS0) is set to a value other than 0 (disable). Use
the AT&V command to view DataPort 2001 settings.

S: Make sure that the computer is providing DTR to the

DataPort 2001 (the TR light should be lit). If the computer
does not provide DTR to the DataPort 2001, verify that the
DataPort 2001’s &D command (DTR Action) is set for
Ignore (&D0). (This may be required for some Macintosh
applications.)

Connect

P: Your DataPort 2001 dials, but does not connect.

S: If the DataPort 2001 is operating behind a PBX, determine

if a 9 and comma (pause) are needed before the telephone
number.

S: Verify whether Tone (ATDT) or Pulse (ATDP) dialing is

needed.

S: During the dialing or handshaking process, if any key on

the keyboard is pressed, the call will disconnect. This is
known as any-key abort and is standard operation for dial
modems.

Try dialing again, and wait for the CONNECT or BUSY
message to display before entering data from the keyboard.

S: If both modems use V.32bis or V.32 modulation, set your

DataPort 2001’s V.32bis Train (ATS43) command to
Long (0). (Factory setting is Long.)

P: Your DataPort 2001 answers, but does not connect.

S: Make sure that the DataPort 2001 is configured for

Automode (ATS78=0). This allows the DataPort 2001 to
connect to any modem that recognizes CCITT V.32bis,
V.32, V.22bis, V.22, V.21, Bell 212A, Bell 103J and V.23
modulation schemes. The DataPort 2001 does not support
other vendors’ proprietary modulation schemes.

S: Determine the originating modem’s modulation scheme,

and then use the ATS41 command to force your DataPort
2001 to operate at the same modulation scheme as the
originating modem.

S: To test your hardware, perform a Local Analog Loopback

test (AT&T1) and verify that data entered at the computer is
echoed back to the computer. Before starting the test,
disable Error Control mode using either the AT\N0 or AT\N1
command. Issue the AT&T1 command, and begin to enter
data from your keyboard. It should appear on your monitor.
To stop the test, escape to command mode (+++) and
issue the AT&T0 command.

P: The message NO CARRIER appears after dialing a

telephone number.

S: Make sure you dialed a correct and valid telephone, and

that a modem is connected to the other side.

Disconnect

P: Your DataPort 2001 dials and connects with another

modem, but after a moment, disconnects the call.

S: Your DataPort 2001 might be trying to communicate with an

older modem that does not support error control. (This is
known as an error control disconnect, where the DataPort
2001 is configured to establish a call using error correction.
If the modems cannot negotiate error control, then a
disconnect occurs.)

Disable error control in your DataPort 2001 by entering an
AT\N0 command. This places your DataPort 2001 into
Buffer mode, a non-error control mode. Try dialing the
number again.

To restore error control to your DataPort 2001, issue either
the AT\N7 command (turns error control ON) or the AT&F
command (restores factory defaults and enables error
control) after the call.

S: You may have a poor telephone line connection. Try dialing

again.

S: Your telephone may have Call Waiting enabled. Refer to

your local telephone book for procedures to disable this
feature.

S: To test your DataPort 2001 hardware, perform a Local

Analog Loopback test (AT&T1) and verify that data entered
at the computer is echoed back to the computer. Before
starting the test, disable Error Control mode using either
the AT\N0 or AT\N1 command. Issue the AT&T1 command,
and begin to enter data from your keyboard. It should
appear on your monitor. To stop the test, escape to
Command mode (+++) and issue the AT&T0 command.

File Transfer

P: You are transmitting a compressed file, but the

throughput seems to be slow.

S: MNP5 data compression can add more overhead to a

compressed file. Turn data compression Off (AT%C0), and
resend the file (if necessary).

P: You experience several errors while transferring a file.

S: Verify that your DataPort 2001 and communications

software are configured for the same type of flow control,
for example, either RTS/CTS (AT\Q3) or XON/XOFF
(AT\Q1).

If you are using XON/XOFF flow control, make sure the
DataPort 2001’s parity matches the computer’s parity.
Verify this within the communications software.

Make sure that your DataPort 2001’s parity matches the
parity of the remote end. A mismatch in parity will cause
flaky errors, such as a single line constantly being
repeated.

S: Set the software’s DTE rate (the speed of the DataPort

2001-to-computer connection) to a lower speed. The
DataPort 2001 depends on the computer’s COM port
UART. If a successful transfer occurs at a lower speed,
then you may want to upgrade your computer’s COM port
UART.

S: Use a different file transfer protocol. Some protocols, such

as Ymodem-G, are very sensitive and may cancel your file
transfer.

Character Format

P: You make a successful connection, but “garbage”

characters appear on your screen.

S: The other modem may be configured for a different

character set (8 data bits, No parity, and 1 stop bit (8N1),
7E0, 7E1, and so on).

Refer to your software documentation for instructions on
changing your character set.

P: You are trying to logon to an online service, but are

unsuccessful.

S: Verify the character structure of the online service and

make appropriate changes in your software before dialing.
Some services, such as GEnie, require a character
structure of 7E1.

S: Configure the DataPort 2001 for 2400 bps (ATS41=6) with

no error control (AT\N0) and try to call again.

Rate

P: Your DataPort 2001 is configured to operate at

14,400 bps (ATS41=0), but connects at a lower speed,
such as 2400 bps.

S: With Automode enabled (ATS78=0), your DataPort 2001

will match its dial-line rate and modulation scheme with the
other modem’s dial-line rate. Therefore, if the other modem
is configured to operate at 2400 bps (V.22bis), the DataPort
2001 will connect at that rate.

S: The DataPort 2001 does not support other vendors’

proprietary systems and may be forced by the other
modem to connect at a lower rate also.

P: Your DataPort 2001 is configured for V.17 fax

(14,400 bps), but faxes at a lower speed.

S: The other fax modem/fax machine may not support V.17

fax.
S: Make sure that your fax software supports V.17 fax.
S: Make sure that 14,400 bps is selected as the send and

receive rate in your fax software.
S: Make sure V.17 fax has not been disabled (ATS79=0). The

ATS79=1 command enables V.17 fax and is the factory

default.

P: Your DataPort 2001 does not disconnect the call and

hang up.

S: Change the setting of the &D command from Ignore (&D0)

to Standard RS-232 operation (&D2).

Fax

P: Your DataPort 2001 cannot send or receive a fax.

S: Make sure that your fax software is correctly installed.
S: Check your fax software to see if there is an Answer mode

or receive fax setting that must be enabled.

P: Sections of your fax are missing.

S: This often indicates a noisy telephone line or a flow control

problem. To resolve the flow control problem, try using

hardware flow control (CTS/RTS). This must be enabled in

your software (refer to the software’s documentation) and

set within your DataPort 2001 using the AT\Q3 command

(RTS/CTS flow control).

P: Your fax did not complete, and your DataPort 2001

displays results codes in the numeric format.

S: For some reason, your DataPort 2001 and software are no

longer communicating, and as a result, your DataPort 2001

is stuck in fax mode. Type ATE1V1 and press Enter. The

software should respond with an OK. Try sending or

receiving the fax again.

EC Light

P: The EC light is flashing.

S: Contact technical support for product return procedures.

AppleTalk Remote Access (ARA)

P: You have installed the ARA script from the AT&T BBS,

but are having problems loading ARA.

S: Turn AppleTalkr ON.
S: Make sure that a conflicting package is not active. Refer to

your software documentation for ARA conflict information.

AT Command Recovery

The following describes AT Command Recovery which returns
your DataPort 2001 from “Dumb” mode. While in Dumb mode,
the DataPort 2001 ignores all AT commands. This mode is only
applicable to DataPort 2001s used in synchronous applications.

P: Your DataPort 2001 enters Dumb mode.

S: Synchronous dialing disables the use of AT commands and

places the DataPort 2001 into a state known as Dumb

mode. The DataPort 2001 operates fine in this mode, but

cannot be returned to Asynchronous mode where AT

commands are used.

The following procedures, known as AT Command
Recovery, restore A T commands. Review these procedures
before performing the recovery.

1. Turn the DataPort 2001 Off.

2. Turn the DataPort 2001 ON and immediately hold down

the A key on your computer keyboard.

After the power-up self-test, in which all front panel lights
turn ON, several

A

characters appear on your monitor. Hold

down the key long enough for at least three consecutive

A

’s

to appear on your monitor.

3. Next, type T*** and press Enter. This must occur within

10 seconds of the previous entry.

(Make sure that you are consistent using uppercase or
lowercase characters, for example, at*** or AT***.)

OK appears on your monitor. The DataPort 2001 is now in
AT Command Recovery mode and remains in this state until
a Save (AT&W) or power reset occurs. If you do not issue
AT&W, the DataPort 2001 returns to Dumb mode when
power is lost.

When an AT recovery occurs, the following changes are
made to your DataPort 2001:

– The DataPort 2001 is configured for

Asynchronous mode and uses AT commands
(AT&M1 or AT&Q1);

– Data Set Ready (DSR) is configured for forced

ON (AT&S0); and

– Carrier Detect (CD) is configured for forced ON

(AT&C0).

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5

Configuring the DataPort 2001
for VoiceSpan

To configure the DataPort 2001 for VoiceSpan operation, issue
the following AT commands.

1. AT&F
(Load factory defaults)

2. AT%VF
(Load factory VoiceSpan defaults)

3. ATS0=0
(Disable Auto-Answer)

4. AT&W
(Save options in non-volatile memory)

Appendix B shows in boldface type the default configuration
values set by the %VF and &F commands.

Starting a VoiceSpan Session

Unlike a modem-to-modem session, a VoiceSpan session can
begin with a normal voice telephone call. Two users might
discuss what communications application they are going to run
on their DTEs (for example, which interactive computer game
they would like to play together), or they might establish that the
applications are already running and they are ready to proceed.

When the two users wish to connect in VoiceSpan mode, they
cause one application to dial and the other to answer. How this
is done depends on the application. In some applications, dialing

is simply a matter of selecting a telephone icon on the
originating side; some applications require that you type a
command. Answering may be automatic, or may require some
user action.

Although the connection is already made, the DataPort 2001s
make it appear to the applications that a new phone call is being
initiated and answered. The users are now in a VoiceSpan
session. While their DTE applications can send data back and
forth, the users can also simultaneously communicate by voice.

The following pictures show the beginning of a typical
VoiceSpan session.

1) Working at home,
Chris telephones his
colleague Jan to discuss
an upcoming multimedia
presentation.

2) After a few minutes they
realize it would be useful to
view the images they are
discussing.

3) Using his PC, Chris
initiates a call to Jan’s
number.

4) Jan’s DataPort 2001
answers Chris’s call and
sends a RING message to
her PC.

Chris and Jan are now in VoiceSpan mode.

5) Being able to view,
change, and discuss the
slides for their
presentation...

6) ...Chris and Jan are
able to work as if they are
together in the same
room.

Table 5-1 shows in greater detail what occurs during the
initiation of a VoiceSpan session with manual dial and manual
answer.

Table 5-1. Initiating a VoiceSpan Session (1 of 2)
Originating End

Answering End

The originating user lifts the
receiver and tone dials the
phone number of the
answering end.

The answering phone rings,
and the answering user picks
up the receiver.

A standard voice call conversation begins. The two users
establish the following:

1. Whether both users have multimedia communicators
supporting VoiceSpan.

2. What application the users will run on their respective DTEs.

3. Whose DTE application will originate a call to initiate
VoiceSpan operation. (In this example, the same side
initiates VoiceSpan operation that initiated the call, but this
is not required.)

The user on one end starts the
application. If the application
requires it, the user starts it in
Answer mode.

The user on the other end
starts the application. If the
application requires it, the user
starts it in Originating mode.

Because most modem-to-modem applications are not designed
for a situation where the telephones are already connected, the
DataPort 2001s at this point simulate the initiation of a
telephone call.

Table 5-1. Initiating a VoiceSpan Session (2 of 2)
Originating End Answering End

The application sends an ATDT
(tone dial) command to the
DataPort 2001. The DataPort
2001 responds by sending
VoiceSpan ring signals to the
remote modem.

Upon detection of the
VoiceSpan ring signal followed
by a silence, the answering
modem stops transmitting
voice, and sends the RING
message to the local DTE.

The application may send an
ATA (answer) command to the
modem, or the modem may
reach its configured ring count
for auto-answer. In either
case, the modem sends the
signals to initiate VoiceSpan
mode.

The originating modem detects
the VoiceSpan signals and the
two modems establish a
VoiceSpan connection. The
originating modem sends a
CONNECT message to the
DTE, and the VoiceSpan ready
signal to the local phone.

The answering modem sends
a CONNECT message to the
DTE, and the VoiceSpan
ready signal to the local
phone.

The V oiceSpan session begins.

The DataPort 2001 supports the possible combinations of
Manual Dial, Manual Answer, Auto-Dial, and Auto-Answer. In
cases where there is no local telephone off-hook, the DataPort
2001 connects in data-only VoiceSpan mode (no audio).

DataBurst

In VoiceSpan mode, data transmission occurs at 4800 bps when
there is sound to transmit at the same time. However, whenever
the transmitting DataPort 2001 detects silence, it sends data at
the highest rate possible (up to 14,400 bps). When there is new
sound to transmit, the DataPort 2001 reverts to a data rate of
4800 bps. Switches between the high and low rates are made
so quickly that they do not appreciably alter the sounds you
hear.

This feature is called DataBurst, and can be enabled or
disabled with the AT command %VA. (It also is enabled when
the VoiceSpan Defaults AT command %VF is issued.) Enabling
DataBurst on your DataPort 2001 affects the audio and data
being sent to you. The rate at which your DataPort 2001
transmits data is affected by whether DataBurst is enabled in
the remote DataPort 2001.

During a telephone conversation a DataPort 2001 usually can
transmit data at high speed most of the time. This is because
one party normally is silent while the other speaks, and even the
speaker must occasionally pause for breath. When music or
other nearly constant sound is being transmitted, the advantage
of DataBurst is significantly reduced.

Data-Only Mode

To force data to be transmitted at the highest possible rate, you
can momentarily disable the audio in one or both directions. This
is done by hanging up your telephone, by pressing the
telephone hookswitch briefly (called a “flash hook”), or by
issuing a Data Mode Control command from your computer.
(See Table 5-2.) All three methods enable high-speed data
transfer and disable audio transmission in one direction. The
other user can continue to talk and be heard by the user in
data-only mode, but receives a beeping alert tone on the
telephone receiver that means the other user cannot
communicate by voice.

Simultaneous audio and data mode resumes when you lift the
telephone receiver from the hook, perform another flash hook,
or issue a Data Mode Control command.

The following pictures show a session in which data-only mode
is used.

1) Jan prepares to send a
large file...

2) ...and Chris prepares
to receive it.

3) Jan initiates the file
transfer. Jan realizes there
is too much background
noise in her office for
DataBurst to have much
effect. She taps her
telephone’s hookswitch to
send the file at the
maximum speed.

4) Chris hears alert tones
in his telephone handset
that mean Jan is in
data-only mode. Jan can
still hear Chris.

5) Jan also hears a
periodic beep to remind her
she is in data-only mode.
At any point she can tap
the hookswitch to return to
simultaneous audio and
data mode.

Jan might instead simply hang up her phone to transmit data at
high speed, and she might suggest to Chris that he hang up his
phone, too. This way she can perform other work while awaiting
Chris’s return, and the completion of the file transfer. When
Chris gets back to the telephone and picks up the handset, a
ring signal is sent to Jan’s DataPort 2001 alerting her that he is
ready to resume voice communication.

Table 5-2 shows in detail how the high-speed data-only feature
of VoiceSpan is used.

Table 5-2. Data-Only Mode (1 of 2)
Originating End

Answering End

The users are in a VoiceSpan session, with simultaneous audio
and data communication.

One user prepares to send a
large graphics file.

The remote user prepares the
DTE application to receive the
file.

After initiating the send, the
user decides to use a burst of
speed to hurry completion.
(This can be done at any time,
however.) The user taps the
telephone hookswitch. This
instantly puts the DataPort
2001 in high-speed data-only
mode. (The user also could
hang up the phone or issue the
+++ escape sequence followed
by the AT%VH1 command to
invoke data-only mode.)

The remote user hears a
periodic tone series meaning
the other user can no longer
communicate by voice.
Because the other user still
can hear, the user receiving
the file can orally acknowledge
that the file is received intact.

Table 5-2. Data-Only Mode (2 of 2)
Originating End Answering End

The application completes the
send, and the remote user
acknowledges receipt. The
user returns to VoiceSpan
mode by tapping the telephone
hookswitch. Simultaneous
audio and data mode is
restored.

The VoiceSpan session proceeds.

Ending a VoiceSpan Session

To end a VoiceSpan session, one user causes the DTE
application to hang up. (How this is done is application­dependent.) The DataPort 2001s disconnect. If the telephones
are still off-hook, the users can continue their conversation,
uninterrupted.

The following pictures show the end of a typical VoiceSpan
session.

1) Finished with their
discussion for now, Jan
and Chris direct their PC
applications to hang up...

2) ...but they still are able
to communicate until they
actually hang up their
telephones.

Table 5-3 shows a session termination in greater detail.

Table 5-3. Ending a VoiceSpan Session
Originating End

Answering End

The users establish that they are finished with VoiceSpan for
now.

One user causes the DTE
application to issue a +++
escape and an ATH (On-hook)
command. The DataPort 2001
initiates its disconnect
sequence.

The remote DataPort 2001
detects the preparation to
disconnect, and responds.

The VoiceSpan session ends and the DataPort 2001s are
disconnected. If the telephones are both off-hook, the users can
continue their conversation. Hanging up the phones ends the
call.

VoiceSpan Alert Sounds

Several different sounds are used to help notify you of the status
of your VoiceSpan session.

A musical sequence similar to the AT&T calling card signal
notifies you that a VoiceSpan session has begun. This sound is
repeated when the remote DataPort 2001 switches to data-only
mode.

A short repeating beep reminds you when your DataPort 2001 is
in data-only mode, but the remote user’s DataPort 2001 is not.

Your DataPort 2001 generates two different kinds of rings. A ring
similar to a normal telephone ring alerts you when another
DataPort 2001 has dialed yours. A ring consisting of higher
tones occurs when the DataPort 2001s are connected and your
remote partner takes the remote telephone off-hook while your
telephone is still on-hook.

Table 5-4 shows in detail how these sounds are used.

Table 5-4. VoiceSpan Alert Sounds
Site A

Status

Site A
Alert

Site A
Transmit

Site B
Transmit

Site B
Alert

Site B
Status

Off-hook,
calling
Site B

Normal
Ring

On-Hook

Going
from
On-Hook
to
Off-Hook
in Audio
and Data
Mode

AT&T
Signal

Data,
then
Audio and
Data

Data High

Ring

On-Hook

Going
from
On-Hook
to
Off-Hook
(First
Time) in
Audio and
Data
Mode

AT&T
Signal
(Once)

Audio and
Data

Audio and
Data

AT&T
Signal
(Once)

Going
from
On-Hook
to
Off-Hook
(First
Time) in
Audio and
Data
Mode

Off-Hook
in
Data-Only
Mode

Short
Beep

Data Audio and

Data

AT&T
SIgnal

Off-Hook
in Audio
and Data
Mode

Off-Hook
in Audio
and Data
Mode

AT&T
Signal

Audio and
Data

Data Short

Beep

Off-Hook
in
Data-Only
Mode

Off-Hook
in
Data-Only
Mode

AT&T
Signal

Data Data AT&T

Signal

Off-Hook
in
Data-Only
Mode

NOTE:

In a VoiceSpan session, your DataPort 2001 is in
data-only mode when you have tapped the hookswitch,
entered the AT%VH1 command, or hung up the phone.

   

A

Table A-1 describes each front panel LED on the DataPort 2001,
as shown in Figure A-1.

493-14365

EC HS CD OH RD SD TR MR

DataPort 2001

Figure A-1. DataPort 2001 Front Panel Status Lights

Table A-1. LED Descriptions (1 of 2)
LED

Label

Description

EC Error Control. When ON, the DataPort 2001 is using

an error control protocol such as V.42 or MNP.

HS High Speed. When ON, the DataPort 2001 is

transmitting data across the telephone line at its
configured rate (for example, the DataPort 2001 is
configured for V.32 bis and connects at 14,400 bps), or
the DataPort 2001 is connected to a remote modem
that has restricted the DataPort 2001 to 9600 bps in
V.32 mode.

The HS LED also remains ON when the DataPort 2001
is idle.

When Off, the DataPort 2001 is operating at a speed
lower than its configured rate. In a VoiceSpan session
with DataBurst, the HS LED therefore reflects whether
audio plus data or data alone is being transmitted:
audio input causes data to be transmitted at a lower
speed, and the LED turns Off; a pause in audio input
allows data to be transmitted at a higher speed, and
the LED turns ON.

CD Carrier Detect. When ON, the DataPort 2001 has

established a connection with a modem at the other
end of the telephone line. This LED follows the status
of the CD signal, Pin 8 of the EIA RS-232 interface.
(This description assumes that the &C command is
configured for standard EIA RS-232 operation (&C1).
Refer to the &C command in Appendix B for more
information.)

OH Off-Hook. When ON, the DataPort 2001 is connected

to the telephone line and a data or fax call is in
progress.

RD Receive Data. When ON, the DataPort 2001 is

sending data to your computer. This LED follows the
status of the RXD signal, Pin 3 of the EIA RS-232
interface.

Table A-1. LED Descriptions (2 of 2)
LED

Label Description

SD Send Data. When ON the computer is sending data to

the DataPort 2001. This LED follows the status of the
TXD signal, Pin 2 of the EIA RS-232 interface.

TR Terminal Ready. When ON, the computer is attached

and ready to send data to or receive data from the
DataPort 2001. Note that if the &D command is set for
Ignore (&D0), then this LED is always ON.

If the correct COM port is not selected, this LED will not
light. The &D command (DTR Action) must be set for
standard EIA RS-232 operation (&D2) for the LED to
function this way.

When Off, data cannot flow between the two devices.
This LED follows the status of the DTR signal, Pin 20

of the EIA RS-232 interface.

MR Modem Ready. When ON, the DataPort 2001 is ready

to send data to or receive data from the computer. This
LED follows the status of the DSR signal, Pin 6 of the
EIA RS-232 interface.

  


B

Table B-1 lists AT commands and S-Registers supported by the
DataPort 2001. This table lists standard AT commands and
S-Registers first (e.g., ATA and ATS0=0), followed by extended
AT commands: the ampersand (&) commands (AT&C0); the
backslash (\) commands (AT\A); and the percent (%) commands
(AT%A). Boldface type indicates factory settings (see the
&F0 command), and, where noted, the VoiceSpan default
settings (see the %VF command).

Table B-2 shows how the DataPort 2001 determines whether or
not to connect in VoiceSpan mode.

Additional information for AT commands supported by the
DataPort 2001 is available on the AT&T Paradyne BBS. If you
require more details on a particular command, dial the BBS and
download the appropriate AT command file.

See

An Overview of AT Commands

in Chapter 2 for an

explanation of command entry and usage.

Table B-1. AT Command and S-Register List (1 of 34)
AT

Command/
S-Register

Description

+++ Escape Sequence

Causes the DataPort 2001 to exit Data mode and
enter online Command mode. The O command
returns you to Data mode.

The escape sequence must be preceded and
followed by a pause to distinguish it from data.
(See S12.) The value of the escape character
can be changed. (See S2.)

A/ Repeat Last Command

Repeats the previous command string entered.
Do not precede the A/ command with AT or follow
it with a carriage return.

A Answer Mode

The Answer command causes the DataPort 2001
to go off-hook and answer an incoming call.

B

n

CCITT/Bell Mode
Determines the protocol used if the dial-line rate

is set to 300 or 1200 bps. It has no effect if the
rate is set to another value. (See %B and S41.)

B0 V.21 or V.22 (300 or 1200 bps)

B1 Bell 103 or Bell 212A (300 or 1200 bps)

B2 V.23 (send at 75, receive at 1200 bps)
B3 V.23 (send at 1200, receive at 75 bps)
NOTE: For V.23, both the local DataPort 2001

and the remote modem must be configured for
the same mode of operation: both set to B2, or
both set to B3.

Table B-1. AT Command and S-Register List (2 of 34)
AT

Command/
S-Register

Description

D

n

Dial
Any digit or symbol (0–9, *, #, A, B, C, D) may be

dialed as touch-tone, but only 0–9 can be dialed
in Pulse Dial mode. A dial string can be up to
40 characters long. Spaces, hyphens, and
parentheses do not count; these characters are
used to enhance readability and are ignored.

Dial Command Modifiers
The following modifiers can be used in a dial

string:
T Touch-tone dialing. Any digit 0–9, * , # , A,

B, C, or D is valid.
P Pulse dialing. Only the digits 0–9 are valid.
, Pause. The DataPort 2001 pauses before

processing the next character in the dial

string. Pause length is determined by the

value of

S8 (Pause Time).
W Wait for dial tone. The DataPort 2001

waits for a second dial tone before

processing the dial string. This can be the

initial dial tone or can be used when dialing

through a tandem PBX. For example:

ATDT9W555-6789
; Return to Command mode. Allows

AT command strings that exceed the

40-character limit to be linked together.

This is useful when using a calling card

number or an international telephone

number. The DataPort 2001 remains in

Command mode until a dial string ends

without a semicolon.

Table B-1. AT Command and S-Register List (3 of 34)
AT

Command/
S-Register

Description

Dial Command Modifiers (continued)
R Reverse Dial mode. Causes the originating

DataPort 2001 to send out an answertone

once it no longer detects ringback.

(Ringback is the ring you hear at the

originating site when making a call.) The R

parameter must be the last character in

the dial string. For correct operation, at

least one ringback must be detected;

therefore, the remote modem should be

placed off-hook into Originate mode on the

second ring or later.
@ Quiet answer. The DataPort 2001 waits for

5 seconds of silence after dialing

the number. If silence is not detected, the

DataPort 2001 sends a NO ANSWER

result to the computer.
! Hook flash. The DataPort 2001 goes

on-hook for 0.5 seconds, then returns

off-hook.
$ AT&T Calling Card Tone Detect. The

DataPort 2001 awaits the AT&T Calling

Card Tone. If the Calling Card Tone is not

detected in the amount of time specified by

S7 (No-Answer Timeout), the DataPort

2001 sends NO CARRIER or (for cellular

operation) NO ANSWER to the computer.
Spaces, hyphens, and parentheses

These may be included for readability, but

do not affect dialing.

Table B-1. AT Command and S-Register List (4 of 34)
AT

Command/
S-Register

Description

DL Dial Last Number

Redials the last telephone number dialed. For this
command to work properly, at least one valid ATD
command must have been issued since the
DataPort 2001 was turned ON.

DS=

n

Dial Stored Number
Dials telephone number stored in directory

location

n

(where n is 1 or 2). The DataPort 2001
supports two telephone directory entries. (See
&Z.)

E

n

Command Character Echo
Allows characters entered at your keyboard to be

displayed on your monitor.
E0 Disables echo

E1 Enables echo

H

n

Hook Control
Determines if the DataPort 2001 is on-hook

(ready for a call) or off-hook (connected or busy)
H0 On-hook

H1 Off-hook

Table B-1. AT Command and S-Register List (5 of 34)
AT

Command/
S-Register

Description

I

n

Identification

I0 Displays product code–144
I1 Displays ROM checksum
I2 Performs an EEPROM check
I3 Displays serial number and

AT&T Paradyne

I4 Displays alphanumeric modem number
I5 Displays circuit card part number
I6 Displays software part number
I9 Displays firmware revision number
I10 Allows the value of I0 to be changed to

144 (I10=0), 240 (I10=1), 480 (I10=2),
960 (I10=3), or 120 (I10=4)

I11 Displays a ROM checksum in a

hexadecimal format

I17 Displays last fatal error recorded
I19 Displays firmware revision number in an

alphanumeric format

L

n

Speaker Volume
Adjusts the volume of the speaker in the

DataPort 2001.
L0, L1 Low volume

L2 Medium volume

L3 High volume

Table B-1. AT Command and S-Register List (6 of 34)
AT

Command/
S-Register

Description

M

n

Speaker On/Off Control
M0 Speaker always Off.

M1 Speaker ON until carrier signal

becomes active.

M2 Speaker always ON.

O Return Online to Data Mode

Forces the DataPort 2001 from online Command
mode to Data mode.

P Pulse Dial

Specifies rotary-type dialing. See D

n.

Q

n

Result Codes
Allows messages, such as OK and BUSY, to be

displayed. Refer to the V and X commands for
more information.

Q0 Enables result codes

Q1 Disables result codes
Q2 Enable in Originate mode

S

n=r

Change S-Register

n

= S-Register

r

= new value of S-Register

S

n

? View S-Register

Displays the value of a specific S-Register

n

(for

example, S0?).

Table B-1. AT Command and S-Register List (7 of 34)
AT

Command/
S-Register

Description

S0=

n

Auto-Answer Ring Number
0 = Disable
Number of rings before the DataPort 2001

answers. Accepts a ring count from 0 to 255.
Factory setting is

1. If set to 0, a call must be

answered manually, or by issuing the
A command.

S2=

n

AT Escape Character
Sets the AT Escape Character to a value

from 0 to 127. Factory setting is 43, an ASCII
+ character.

S3=

n

Carriage Return Character
Sets the Carriage Return Character to a value

from 0 to 127. Factory setting is 13, an ASCII
carriage return.

S4=

n

Line Feed Character
Sets the Line Feed Character to a value from 0 to

127. Factory setting is 10, an ASCII line feed
character.

S5=

n

Backspace Character
Sets the Backspace Character to a value from 0

to 127. Factory setting is 08, an ASCII backspace
character.

S6=

n

Blind Dial Pause Time
Sets the amount of time the DataPort 2001 waits

before dialing when Dial Tone Detect is disabled
(see X command). Accepts a pause time from 2
to 255 seconds. Factory setting is 2 seconds.

Table B-1. AT Command and S-Register List (8 of 34)
AT

Command/
S-Register

Description

S7=

n

No Answer Timeout
Sets the amount of time the DataPort 2001 waits

before abandoning a call that produces no
answer tone. Accepts a value from 1 to 255
seconds. Factory setting is 45 seconds.

Cellular setting is 120 seconds.

S8=

n

Pause Time for the “,” Dial Modifier
Sets the length of the pause invoked by a comma

in the Dial command string. Accepts a value from
0 to 255 seconds. Factory setting is 2 seconds.

S9=

n

Carrier Detect Response Time
Required for software compatibility. Although the

DataPort 2001 does not support this register, it
issues an OK for values entered.

S10=

n

No Carrier Disconnect
255 = Disable
Sets the amount of time the DataPort 2001 will

wait before disconnecting when no carrier signal
is detected. Accepts a value from 0 to 254 in 0.1
second increments.

Factory setting is 20 (2 seconds/2000 msec).

Cellular setting is 100 (10 seconds/10,000 msec).

S11=

n

DTMF Tone On Timer
Sets the duration of a DTMF tone (touch-tone).

Accepts a value from 50 to 255 milliseconds. A
value less than 50 defaults to 50 milliseconds.
Factory setting is 70 milliseconds.

Table B-1. AT Command and S-Register List (9 of 34)
AT

Command/
S-Register

Description

S12=

n

Escape Guard Time
Sets the duration of the pause required before

and after an escape sequence (+++) for it to be
treated as an escape sequence and not data.
Accepts a value from 0 to 255 in 20 millisecond
increments. Factory setting is 50 (1 second/
1000 msec).

S13=

n

DTMF Tone Off Timer
Sets the duration of the wait between DTMF

tones (touch-tones). Accepts a value from 50 to
255 milliseconds. A value less than 50 defaults to
50 milliseconds. Factory setting is 70
milliseconds.

S18=

n

Test Timeout
Sets the duration of any test initiated by the

&T command. If S18=0, a test runs indefinitely
unless manually canceled (see &T0).

Accepts a value of 0 for Disable, or from 1 to
255 seconds.

S25=

n

DTR Detection
Sets the amount of time between the DataPort

2001 detecting loss of DTR and the DataPort
2001 responding to loss of DTR. This setting is
used to determine the DTR delay required by the
&D4 command.

Accepts a value of 0 for Disable, or from 1 to 254
(in 0.1 second increments), or 255 for infinite
delay.

Table B-1. AT Command and S-Register List (10 of 34)
AT

Command/
S-Register

Description

S26=

n

RTS-to-CTS Delay
Sets the amount of time the DataPort 2001 waits

after receiving the RTS signal before sending the
CTS signal to the computer. Accepts a value from
0 to 255 in 10 millisecond increments. Factory
setting is 0 milliseconds.

S41=

n

Dial-Line Rate
Sets the protocol and rate. Accepts the following

values:

0,1 = 14,400 (V.32 bis)

2 = 12,000 (V.32 bis)
3 = 9600 (V.32 bis/V.32)
4 = 7200 (V.32 bis)
5 = 4800 (V.32 bis/V.32)
6 = 2400 (V.22 bis)
7 = 1200 (V.22)

8 = 1200 (212A)
10 = 0–300 (V.21)
11 = 0–300 (103J)
12 = 1200/75 (V.23)
13 = 75/1200 (V.23)
The S41 S-Register can be set with the B or

%B command, or can be used to override the
values set by those commands.

Table B-1. AT Command and S-Register List (11 of 34)
AT

Command/
S-Register

Description

S43=

n

V.32 bis Train
Sets the duration of the V.32 handshaking

sequence. (This has no effect when running
VoiceSpan. See S75.)

0 = Long

1 = Short
Cellular setting is Short.

S49=

n

Buffer Disconnect Delay
Sets how long the DataPort 2001 waits to

disconnect after it has received a disconnect
command. This delay allows any data that is
stored in the DataPort 2001’s buffer to be
transmitted to the remote modem.

0 = Disable
Accepts a value from 0 to 255 seconds.

Factory setting is 10 seconds.

S61=

n

Maximum Rate in Data-Only Mode
Sets the data rate used when in data-only mode.

S61=0 14,400 bps

S61=1 12,000 bps
S61=2 9,600 bps
S61=3 7,200 bps
S61=4 4,800 bps
%VF sets this to 0.

Table B-1. AT Command and S-Register List (12 of 34)
AT

Command/
S-Register

Description

S62=

n

Additional Rings to Answer
Specifies the number of rings to be sent to the

local telephone (or emulated on the DataPort

2001) before a RING message is sent to the
computer. This allows a user to intercept a voice
call that the computer would interpret as a data
call.

S62=0 Disable
S62=1 1 ring

through
S62=255 255 rings

%VF sets this to S62=2 (2 rings).

S63=

n

VoiceSpan Call Discriminate
Determines whether to use the modulation

indicated by the calling tone; if disabled, the
modulation is selected according to the value of
the %VS configuration option.

S63=0 Disable

S63=1 Enable

%VF sets this to 1. Table B-2 shows the
relationship of S63 to the setting of %VS
(VoiceSpan Toggle) in call establishment.

S64=

n

S64 – VoiceSpan Discriminate Timeout
Determines how long call discrimination can be

tried before the default modulation (V.32 bis) is
used.

S64=0 0 seconds
through
S64=255 255 seconds

%VF sets this to S64=10 (10 seconds).

Table B-1. AT Command and S-Register List (13 of 34)
AT

Command/
S-Register

Description

S65=

n

Line Current Disconnect
Enables or disables line current disconnects.

Normally, loss of line current means that the
remote DataPort 2001 has disconnected. In
cases where the line current is interrupted by the
network when the line is not being disconnected,
Line Current Disconnect delay should be
lengthened, or Line Current Disconnect disabled.

S65=0 Disconnect after 8 milliseconds

S65=1 Disconnect after 90 milliseconds
S65=2 Disable

&F commands set this to 0.

S66=

n

VoiceSpan Phone Ring Count
Sets the maximum number of rings used to alert

the user to an impending VoiceSpan session. The
signal used for this ring is audibly distinct from a
normal ring.

S66=0 Disable
S66=1 1 ring

through
S66=254 254 rings

S66=255 Alert signal rings forever
%VF sets this to S66=4 (4 rings).

Table B-1. AT Command and S-Register List (14 of 34)
AT

Command/
S-Register

Description

S67=

n

Hardware Bypass Control
Determines under what conditions the DataPort

2001 will turn on or turn off Hardware Bypass.
Hardware Bypass connects the phone directly to
the line. In this state, the local phone can be used
as if the DataPort 2001 is powered off.

S67=0 Disable

S67=1 Bypass If DTR Drops
S67=2 Bypass Until DataPort 2001 goes

off-hook

%VF sets this to 0.

S68=

n

RI Follows Local Phone
Determines whether the RI (Ring Indicator) signal

indicates the hookswitch status of the telephone
connected to the Voice Interface Port.

S68=0 Disable

S68=1 Enable
%VF sets this to 0.

S75=

n

VoiceSpan Fast Train
Enables or disables fast training when running

VoiceSpan. (See S43.)

0 = Enable

1 = Disable
%VF sets S75 to 0.

Table B-1. AT Command and S-Register List (15 of 34)
AT

Command/
S-Register

Description

S76=

n

V.32 bis Autorate for Dial-Line Operation
Determines whether the DataPort 2001 can

adjust line rate according to the line conditions.

0 = Enable

1 = Disable
2 = Start at 4800 bps
3 = Start at 9600 bps
Cellular setting (&F5) is Start at 4800 bps.

S78=

n

V.32 bis Automode for Dial-Line Operation
Determines whether the DataPort 2001 can

connect using a modulation scheme other than
that specified by S41.

0 = Enable

1 = Disable

S79=

n

V.17 Fax Disable
Enables and Disables V.17 fax (14,400 bps)

functionality.
0 = Disable

1 = Enable

Table B-1. AT Command and S-Register List (16 of 34)
AT

Command/
S-Register

Description

S84=

n

AT Command Mode
Determines how the DataPort 2001 responds to

valid and invalid AT commands.

S84=0 Normal

S84=1 ERROR result code is not issued in

response to invalid commands

S84=2 All invalid commands and all commands

that alter configuration options are
ignored

CAUTION: Once the ATS84=2 command has
been issued, the DataPort 2001 cannot be
reconfigured by any AT commands, and it
responds OK to all commands. Commands that
do not affect configuration function normally. The
only configuration change that is acted on is
ATS84=0, which restores normal AT Command
mode.

S85=

n

Fast Disconnect
Determines whether the DataPort 2001 instantly

goes on-hook in response to a disconnect
command.

0 = Disable

1 = Enable

Table B-1. AT Command and S-Register List (17 of 34)
AT

Command/
S-Register

Description

S89=

n

V.42 ARQ Window Size Increase
NOTE:There is no need to change this register

unless your application requires satellite delays or
uses a cellular network. For best performance,
leave the register at its default setting of six
frames (S89=0).

Sets the V.42 ARQ Window Size to a value of six
to fifteen frames. This is only valid when using
V.42 bis data compression or V.42 error control.

0 = 6 frames (factory setting)
1 = 7 frames
2 = 8 frames
3 = 9 frames
4 = 10 frames
5 = 11 frames
6 = 12 frames
7 = 13 frames
8 = 14 frames
9 = 15 frames (cellular setting)

Any values greater than 9 (15 frames) default to

9.

Table B-1. AT Command and S-Register List (18 of 34)
AT

Command/
S-Register

Description

S90=

n

DTE Rate = VF Rate
Automatically adjusts the computer’s rate to

equal the dial-line rate.

0 = Disable

1 = Enable
NOTE:This register is not valid if Direct mode

(\N1) is used.

S91=

n

Cellular Enhancements
This is part of the ETC protocol and is enabled

when the DataPort 2001 is configured using
AT&F5 or AT&F6 commands.

0 = Disable

1 = Enable
Cellular setting is Enable.

T Tone Dial

Specifies touch-tone dialing. This is the default
type. See D

n.

V

n

Result Code Format
Determines the way result codes are sent to the

DTE. See Table A-2 in Appendix A.
V0 Displays as digits (Numbers 1)

V1 Displays as text

V2 Displays as digits (Numbers 2)

Table B-1. AT Command and S-Register List (19 of 34)
AT

Command/
S-Register

Description

X

n

Extended Result Codes, Dial Tone Detect, Busy
Tone Detect

See Table A-2 in Appendix A for a list of extended
result codes.

X0 Disables extended result codes 5–16, dial

tone detect, and busy tone detect

X1 Enables extended result codes 5–16,

disables dial tone detect and busy tone
detect.

X2 Enables extended result codes 5–16 and

dial tone detect, disables busy tone detect.

X3 Enables extended result codes 5–16,

disables dial tone detect, enables busy
tone detect.

X4 Enables extended result codes 5–16,

dial tone detect, and busy tone detect.

X5 Adds error control suffix (REL) to extended

result codes 20–27 if error control is used,
enables dial tone detect and busy tone
detect.

X6 Adds either V.42 or MNP suffix to

extended result codes 20–27 if data
compression is used, enabled dial tone
detect and busy tone detect.

X7 Computer’s data rate appears in the

Connect message instead of the telephone
line data rate, enables dial tone detect and
busy tone detect.

Table B-1. AT Command and S-Register List (20 of 34)
AT

Command/
S-Register

Description

Y

n

Long Space Disconnect
Determines whether the DataPort 2001

disconnects if a long space is detected.
Y0 Disable

Y1 Enable

Z

n

Reset and Load Active
Loads configuration options saved with the

&W command.
Z0 Loads configuration options in User 0 into

Active.

Z1 Loads configuration options in User 1 into

Active.

Z or Z3

Performs a reset and loads storage area
specified by &Y into Active.

&C

n

CD (Carrier Detect) Control
Determines the handling of the Carrier Detect

signal.

&C0 Forced On

&C1 Follows standard RS232 operation: CD is

on when the remote modem’s carrier is
detected.

&C2 Forced on, but turns off momentarily when

disconnected.
&C3 Follows DTR.
&C4 Simulated Control Carrier.
&C5 Follows DTR, but turns off upon

disconnect.

Table B-1. AT Command and S-Register List (21 of 34)
AT

Command/
S-Register

Description

&D

n

DTR (Data Terminal Ready) Action
Determines the handling of the Data Terminal

Ready signal.
&D0 Ignore

&D1 Places DataPort 2001 into Online

Command mode (the call is not

disconnected) when the DTR signal turns

Off. An ATO returns the DataPort 2001 to

Online mode.

&D2 Follows standard RS232 operation.

When DTR turns Off, the DataPort 2001

disconnects.

&D3 Reloads the contents of User 0 (A TY0) or

User 1 (ATY1) into the Active memory

area when DTR turns Off. This is similar to

the ATZ command (ATZ=ATZ3), but does

not perform a complete power reset.
&D4 The local DataPort 2001 does not

disconnect from the call until the local

computer turns DTR Off regardless of how

the remote modem disconnects the call.

See S25 for more information.

Table B-1. AT Command and S-Register List (22 of 34)
AT

Command/
S-Register

Description

&F

n

Select Factory Default and Enhanced Throughput
Cellular (ETC ) Configuration Options

&F0 Loads factory configuration options into

Active memory.
&F5 Loads the ETC protocol. Use this setting

when the DataPort 2001 is attached

directly to a cellular telephone. An RJ11

adapter (which can be purchased from

your cellular telephone supplier) is required

for this configuration.
&F6 Loads the ETC protocol. Use this setting

when the DataPort 2001 is connected

directly to a normal telephone line, but

communicates with a remote modem that

is attached to a cellular telephone.

&G

n

V.22 bis and V.22 Guard Tone
Determines the nature of the V.22 Guard Tone.

&G0 Disable

&G1 550 Hz
&G2 1800 Hz

&I

n

Transmit Level
Determines transmit level for data over dial lines.

Values can range from –10 dBm to –25 dBm.
There is no default setting for &I; the factory

setting for Transmit Level is Permissive mode
(&J).

Cellular setting (&F6) is –18 dBm.

Table B-1. AT Command and S-Register List (23 of 34)
AT

Command/
S-Register

Description

&J

n

Transmit Mode
Sets Permissive control mode for transmit level,

overriding any preceding &I command.
&J or &J0 Permissive mode

&Mn, &Q

n

Async/Sync Mode and Computer Dialer Type
NOTE: &M and &Q perform the same function. It

is not necessary to enter both commands.

&M0, &Q0

Enables asynchronous operation with

AT command protocol dialing.

&M1, &M3 &Q1, or &Q3

Enables synchronous operation with

AT command protocol dialing.
&M2, &Q2

Enables synchronous operation with DTR

dialing method. (Note that the &D

command must be set to &D2.)

&P

n

Pulse Dialing Make/Break Ratio
Sets the relative duration of pulses in Pulse

Dialing mode.

&P0 Make/break ratio is 39 milliseconds to

61 milliseconds

&P1 Make/break ratio is 33 milliseconds to

67 milliseconds

Table B-1. AT Command and S-Register List (24 of 34)
AT

Command/
S-Register

Description

&R

n

RTS (Request To Send) Action
Determines the handling of the Request To Send

signal.
&R0 Follows standard RS-232 operation: RTS

must be on for the computer to transmit to

the DataPort 2001.

&R1 Ignore.

&R2 Simulated Control Carrier.

&S

n

DSR (Data Set Ready) Control
Determines the handling of the Data Set Ready

signal.

&S0 Forced ON.

&S1 Follows standard RS-232 operation: the

DataPort 2001 controls DSR.
&S2 Forced on, but turns off momentarily when

disconnected.
&S3 Follows DTR.
&S4 ON early (when data mode command is

entered).
&S5 Delay until Data mode is entered.

Table B-1. AT Command and S-Register List (25 of 34)
AT

Command/
S-Register

Description

&T

n

Tests
Initiates and terminates Loopback and Pattern

tests. Only one test can run at a time.
&T0 Stops any test in progress and displays

test results.
&T1 Local Analog Loopback test.
&T2 Pattern test.
&T3 Local Digital Loopback test.
&T4 Accepts request for Remote Digital

Loopback test.
&T5 Denies request for Remote Digital

Loopback test.
&T6 Remote Digital Loopback test.
&T7 Remote Digital Loopback test with Pattern.
&T8 Local Analog Loopback test with Pattern.
&T9 Self-test.

NOTE:The DataPort 2001 must be in Direct
mode (\N1) to perform a test. Commands &T1,
&T6, &T7, and &T8 also can be performed in
Buffer mode (\N0). The AT&T0 must be issued to
display test results.

Table B-1. AT Command and S-Register List (26 of 34)
AT

Command/
S-Register

Description

&V

n

View Configuration Options and Phone Directory
&V0 Displays current configuration options in

Active memory.
&V1 Displays configuration options stored in

memory area specified by &Y command.
&V2 Displays configuration options stored in

User 0.
&V3 Displays configuration options stored in

User 1.
&V4 Displays telephone numbers stored in

directory locations 1 and 2.
&V8 Displays DataPort 2001 status information

for troubleshooting.
&V1

n

Displays a continuous scroll of the View

command. (

n

= 0 for &V0, 1 for &V1, 2 for

&V2, 3 for &V3, and 4 for &V4.)

&W

n

Write (Save) Changes to Memory
Saves configuration options in one of two user

areas. (See also Z and &Y.)
&W0 Saves current configuration options to

User 0.
&W1 Saves current configuration options to

User 1.

&X

n

Transmit Clock Source
Determines the source of timing (for synchronous

applications only.)

&X0 Internal

&X1 External
&X2 Receive Clock Loop

Table B-1. AT Command and S-Register List (27 of 34)
AT

Command/
S-Register

Description

&Y

n

Load Configuration Options on Power-Up
Selects configuration options that were stored

using the &W command.

&Y0 Loads configuration options from

User 0.

&Y1 Loads configuration options from User 1.

&Z

n=x

Store Telephone Numbers
Stores telephone number

x

into directory n (1 or

2). The phone number can contain any
characters appropriate to the dial type
(touch-tone or Pulse), and readability characters
such as hyphens. (See the D command for more
information.) The total of both directory entries
cannot exceed 40 characters.

\A

n

Maximum Frame Size
Changes the number of characters sent per

frame of data.
\A0 64 characters per frame

\A1 128 characters per frame
\A2 192 characters per frame

\A3 256 characters per frame

\A4 32 characters per frame
\A5 16 characters per frame

Cellular setting (&F5) is \A4.

Table B-1. AT Command and S-Register List (28 of 34)
AT

Command/
S-Register

Description

\C

n

Error Control Negotiate Buffer
Determines whether the DataPort 2001 buffers

data during error control negotiation.

\C0 Disable

\C1 Enable
\C2 Disable but enable upon fallback.

\D

n

CTS Control
Determines the handling of the Clear To Send

signal.

\D0 Forced ON.

\D1 Follows standard RS-232 operation: CTS

follows DTS.
\D2 Forced on, but turns off momentarily when

disconnected.
\D3 Follows state of DTR signal.

\G

n

Modem-to-Modem Flow Control
Controls whether modem-to-modem flow control

is used for Buffer Mode connections. (See \N.)

\G0 Disable

\G1 Enable

Table B-1. AT Command and S-Register List (29 of 34)
AT

Command/
S-Register

Description

\K

n

Buffer Control, Send Break Control, Break Forces
Escape

Controls whether buffered data is discarded upon
a break sequence (Buffer Control), whether a
break sequence is sent before data (Send Break
Control), and whether a break sequence forces
the DataPort 2001 into Command mode (Break
Forces Escape).

\K0 Discards data, sends break before data,

and enables Break Forces Escape.
\K1 Discards data, sends break before data,

and disables Break Forces Escape.
\K2 Keeps data, sends break before data, and

enables Break Forces Escape.
\K3 Keeps data, sends break before data, and

disables Break Forces Escape.
\K4 Keeps data, sends data before break, and

enables Break Forces Escape.

\K5 Keeps data, sends data before break,

and disables Break Forces Escape.

Table B-1. AT Command and S-Register List (30 of 34)
AT

Command/
S-Register

Description

\N

n

Error Control Mode
Determines the type of error control used.

\N0 Buffer mode
\N1 Direct mode
\N2 MNP or disconnect
\N3 MNP or buffer
\N4 LAPM or disconnect (cellular setting)
\N5 LAPM or buffer
\N6 V.42/MNP or disconnect

\N7 V.42/MNP or buffer

\Q

n

Flow Control
Determines the flow control settings for data from

the computer and from the DataPort 2001.

Flow Control of Computer:

\Q0, \Q4, \Q5, \Q6 Disable
\Q1 XON/XOFF
\Q2, \Q3 CTS to computer

Flow Control of DataPort 2001:

\Q0, \Q2, \Q4 Disable
\Q1, \Q5 XON/XOFF
\Q3, \Q6 RTS to DataPort 2001

Table B-1. AT Command and S-Register List (31 of 34)
AT

Command/
S-Register

Description

\T

n

No Data Disconnect Timer
Forces a disconnect if nothing is transmitted or

received for a specified period.

\T0 Disable

\Tn Sets no Data disconnect timer to a value

from 1 minute to 255 minutes.

\X

n

XON/XOFF Passthrough Flow Control
Controls the transmission of XON/XOFF flow

control characters. The default is for the DataPort
2001 to ignore the control characters.

\X0 Disable

\X1 Enable

%A

n

Error Control Fallback Character
Sets error control fallback character

n

to an
ASCII value from 0 to 127. Factory default is 13,
an ASCII carriage return.

%B

n

Modulation/Data Rate
%B300 V.21 or Bell 103—max rate 300 bps

%B1200 V.22, V.23, or Bell 212A—max rate

1200 bps
%B2400 V.22 bis—max rate 2400 bps
%B4800 V.32 bis/V.32—max rate 4800 bps
%B7200 V.32 bis-max rate 7200 bps
%B9600 V.32 bis/V.32—max rate 9600 bps
%B12000 V.32 bis—max rate 12,000 bps

%B14400 V.32 bis—max rate 14,400 bps

Table B-1. AT Command and S-Register List (32 of 34)
AT

Command/
S-Register

Description

%C

n

V.42 bis and MNP 5 Data Compression
Controls the use of V.42 bis and MNP 5 data

compression in both directions.
%C0 Disable

%C1 Enable

%VA DataBurst Control

Enables and disables DataBurst operation in the
remote DataPort 2001’s transmitter.

%VA0 Disable

%VA1 Enable

%VF sets the default of %VA1.
Table B-3 shows how the setting of %VA, in

conjunction with the status of the phone,
determines what is transmitted.

%VF VoiceSpan Defaults

Sets S-Registers S61 through S64, S66 through
S68, and S75, and configuration options %VA,
%VG, %VH, %VL, and %VS, for VoiceSpan
operation.

See the individual options and Chapter 5,

Using

VoiceSpan

, for more information.

%VG VoiceSpan Audio V olume

Controls the volume of the audio signal sent to
the local telephone when connected in VoiceSpan
mode. Possible values are:

%VG0 Lowest
through
%VG9 Highest

%VF sets this value to %VG6.

Table B-1. AT Command and S-Register List (33 of 34)
AT

Command/
S-Register

Description

%VH VoiceSpan Data Mode Control

Permits dynamic switching from simultaneous
audio and data mode to high-speed, data-only
mode. This affects only the transmit direction;
data continues to be received at a rate
determined by the settings of the remote
DataPort 2001. Setting %VH is valid only if the
local telephone is off-hook. Possible values of
%VH are:

%VH0 Audio and data
%VH1 Data only

%VF does not set a default value for %VH. If the
local telephone is off-hook when VoiceSpan
mode is established, the DataPort 2001 defaults
to audio and data mode.

Table B-3 shows how the setting of %VH, in
conjunction with the status of the phone,
determines what is transmitted.

Table B-1. AT Command and S-Register List (34 of 34)
AT

Command/
S-Register

Description

%VL VoiceSpan Speaker Ring Volume

Controls the volume of the simulated telephone
ring sent to the speaker of the DataPort 2001.
Possible values are:

%VL0 Disable
%VL1 Low

%VL2 Medium

%VL3 High
%VF sets the default of %VL2.

%VS VoiceSpan Toggle

Enables or disables VoiceSpan. Possible values
are:

%VS0 Disable

%VS1 Enable

%VF sets the default of %VS1. Table B-2 shows
the relationship of S63 (VoiceSpan Call
Discriminate) to the setting of %VS in call
establishment.

Call Establishment Rules

Table B-2 shows how connections are made according to the
settings of the originating and answering DataPort 2001
%VS (VoiceSpan Toggle) and S63 (Call Discriminate) options.
Note that the default setting for both is 1. A standard modem
acts as if it had both configuration options set to 0.

Table B-2. Call Establishment Rules

Originator

"

S63=0,
%VS=0

S63=0,
%VS=1

S63=1,
%VS=0

S63=1,
%VS=1

Answerer

S63=0,
%VS=0

V.32 bis No

Connect

V.32 bis V.32 bis

S63=0,
%VS=1NoConnect

VoiceSpan No

Connect

VoiceSpan

S63=1,
%VS=0

V.32 bis VoiceSpan V.32 bis V oiceSpan

S63=1,
%VS=1

V.32 bis VoiceSpan V.32 bis V oiceSpan

Data Modes

Table B-3 shows how the state of your phone, the setting of the
%VH command, and the status of DataBurst together determine
what is transmitted, and at what rate.

Table B-3. Phone States and Data Modes
Phone State

%VH DataBurst What Transmitted

On-Hook (No effect) Disabled High-Speed Data
Off-Hook %VH0 Disabled Audio and Low-Speed

Data
Flash Hook %VH0 Disabled High-Speed Data
Off-Hook %VH1 Disabled High-Speed Data
Flash Hook %VH1 Disabled High-Speed Data
On-Hook (No effect) Enabled High-Speed Data
Off-Hook %VH0 Enabled High-Speed Data

(During Audio

Silence), or Audio and

Low-Speed Data
Flash Hook %VH0 Enabled High-Speed Data
Off-Hook %VH1 Enabled High-Speed Data
Flash Hook %VH1 Enabled High-Speed Data

  
 

C

This appendix lists the recommended settings for several
communications, remote communications, and fax software
packages that have been tested with the DataPort. Refer to

your software’s user’s guide for the location of these
configuration parameters.

Guidelines for All Software

These overall guidelines apply when using the DataPort 2001
with the software packages listed in this appendix:

G

If your software has an Auto Baud selection, make sure
it is Off.

G

If you manually change the baud rate (the software’s
reference to the speed of the connection between the
DataPort 2001 and the computer) while the DataPort
2001 is offline, enter AT and press the Enter key before
receiving a data transfer. This is known as Autobaud,
where the DataPort 2001 uses the “A” character to
gather information about the baud rate and character
structure, and ensures that the DataPort 2001 is
configured to the new speed.

G

If your software has a Lock Speed selection, make sure

it is ON.

G

Use Hardware flow control (RTS/CTS). This is the
recommended flow control method; however, some
packages require software flow control (XON/XOFF).

G

Your DataPort 2001 and computer (DTE) communicate
via your computer’s serial port at a variety of DTE data
rates (baud rates) ranging from 300 bps to 57,600 bps.
Use your software package to select the highest possible
data rate that your computer can support. (Most
packages simply refer to this speed as the Baud Rate.)

If your serial port is configured for 38,400 or 57,600 bps,
and you notice considerable errors in your data
transmission, try configuring it to a lower data rate such
as 19,200 bps. Before using these higher data rates
again, verify that your serial port has a 16550A
compatible UART that can handle 38,400 or 57,600 bps.

G

Your DataPort 2001 supports both Class 1 and Class 2
fax. (Class 1 fax places most of the processing burden

on the software while Class 2 fax places it on the
modem.) If the DataPort 2001 is not listed in a particular
fax package, try using a generic Class 2 fax driver if
available.

G

The DataPort 2001 defaults to RTS/CTS (hardware) flow
control. Various Macintosh packages require XON/XOFF
(software) flow control. Refer to your software’s
documentation for which flow control method to use.

G

If the AT&T COMSPHERE 3800 Series modem driver is
listed in a software package, select it and change the
AT\N5 command to AT\N7.

G

Throughout this section, various Hayes modem drivers
are recommended, for example Hayes Smartmodem

2400. These drivers are recommended because their
initialization strings closely resemble the DataPort 2001’s
settings. Your DataPort 2001 will continue to operate at
the highest dial line rate possible, 14,400 bps.

G

If all else fails, configure the DataPort 2001 for No Error
mode by issuing the command ATS84=1&W. While in
this mode, the DataPort 2001 will act on all supported
commands (ATD and ATA) and ignore all unsupported
commands (commands that configure, such as ATS41).
This mode allows the DataPort 2001 to be used in a
variety of applications.

Guidelines for Specific Software

If the AT&T DataPort 2001 or DataPort modem does not appear
in your software’s modem driver list, then use the recommended
settings listed in this appendix.

If your software package does not appear in this appendix,
check the AT&T Paradyne BBS (813-532-5254) for the latest
updates, special settings, or initialization string before contacting
Technical Support.

Finally, please let us know if you are using the DataPort 2001
with a package that is not listed in this appendix since we would
like to share this with other DataPort users. Feel free to upload
this information to the BBS.

AppleTalk Remote Access (ARA) Script
for Macintosh Users

G

Download the file ATTDPT.BIN from the AT&T Paradyne
BBS

G

Place this file into your Extensions folder in your System
folder

G

Configure ARA for the DataPort 2001 by selecting
ATTDPT from the ARA modem list

BitFax for Windows Ver. 2.0

Set the following parameters for this fax software package:

G

No changes necessary

Carbon Copy Plus Ver. 6.0

Set the following parameters for this remote communications
package:

G

Set Comm Port Address

G

Set Baud Rate to the highest speed compatible with your
PC

G

Use the AT Compatible modem driver