ZyXEL Communications 56K Plus User Manual

Omni 56K Plus Series

DATA/FAX Modem

User’s Guide

Version 1.0.0

July 2004

Omni 56K Plus Series User’s Guide

Copyright

The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation.

Disclaimer

ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. Neither does it convey any license under its patent rights nor the patent rights of others. ZyXEL further reserves the right to make changes in any products described herein without notice.

This publication is subject to change without notice.

Trademarks

Trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.

ii Copyright

Omni 56K Plus Series User’s Guide

Federal Communications Commission (FCC)

Interference Statement

This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:

This device may not cause harmful interference.

This device must accept any interference received, including interference that may cause undesired operations.

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 commercial environment. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

If this equipment does cause harmful interference to radio/television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

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

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

Notice 1

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Certifications

1. Go to www.zyxel.com.

2. Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.

3. Select the certification you wish to view from this page.

FCC Statement iii

Omni 56K Plus Series User’s Guide

ZyXEL Limited Warranty

ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase. During the warranty period, and upon proof of purchase, should the product have indications of failure due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the defective products or components without charge for either parts or labor, and to whatever extent it shall deem necessary to restore the product or components to proper operating condition. Any replacement will consist of a new or re-manufactured functionally equivalent product of equal value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product is modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions.

NOTE

Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This warranty is in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect or consequential damages of any kind of character to the purchaser.

To obtain the services of this warranty, contact ZyXEL's Service Center for your Return Material Authorization number (RMA). Products must be returned Postage Prepaid. It is recommended that the unit be insured when shipped. Any returned products without proof of purchase or those with an outdated warranty will be repaired or replaced (at the discretion of ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty gives you specific legal rights, and you may also have other rights that vary from country to country.

Online Registration

Register online registration at www.zyxel.com for free future product updates and information.

iv ZyXEL Limited Warranty

Omni 56K Plus Series User’s Guide

Customer Support

When you contact your customer support representative please have the following information ready:

Please have the following information ready when you contact customer support.

• Product model and serial number.

• Warranty Information.

• Date that you received your device.

• Brief description of the problem and the steps you took to solve it.

REGULAR MAIL

LOCATION

WORLDWIDE

AMERICA

SUPPORT E-MAIL TELEPHONE1 WEB SITE METHOD

SALES E-MAIL FAX1 FTP SITE

support@zyxel.com.tw +886-3-578-3942 www.zyxel.com

sales@zyxel.com.tw

support@zyxel.com +1-800-255-4101

sales@zyxel.com

support@zyxel.de +49-2405-6909-0 www.zyxel.de GERMANY

sales@zyxel.de

support@zyxel.es +34 902 195 420 SPAIN

sales@zyxel.es

support@zyxel.dk +45 39 55 07 00 www.zyxel.dk DENMARK

sales@zyxel.dk

support@zyxel.no +47 22 80 61 80 www.zyxel.no NORWAY

sales@zyxel.no

support@zyxel.se +46 31 744 7700 www.zyxel.se SWEDEN

sales@zyxel.se

support@zyxel.fi +358-9-4780-8411 www.zyxel.fi FINLAND

sales@zyxel.fi

+886-3-578-2439 ftp.europe.zyxel.com

+1-714-632-0882

+1-714-632-0858 ftp.us.zyxel.com

+49-2405-6909-99

+33 (0)4 72 52 97 97 FRANCE info@zyxel.fr

+33 (0)4 72 52 19 20

+34 913 005 345

+45 39 55 07 07

+47 22 80 61 81

+46 31 744 7701

+358-9-4780 8448

www.europe.zyxel.com

ftp.zyxel.com

www.us.zyxel.com NORTH

www.zyxel.fr ZyXEL France

www.zyxel.es

ZyXEL Communications

ZyXEL Communications Corp. 6 Innovation Road II Science Park Hsinchu 300 Taiwan

ZyXEL Communications Inc. 1130 N. Miller St. Anaheim CA 92806-2001 U.S.A.

ZyXEL Deutschland GmbH. Adenauerstr. 20/A2 D-52146 Wuerselen Germany

1 rue des Vergers Bat. 1 / C 69760 Limonest France

Alejandro Villegas 33 1º, 28043 Madrid Spain

ZyXEL Communications A/S Columbusvej 5 2860 Soeborg Denmark

ZyXEL Communications A/S Nils Hansens vei 13 0667 Oslo Norway

ZyXEL Communications A/S Sjöporten 4, 41764 Göteborg Sweden

ZyXEL Communications Oy Malminkaari 10 00700 Helsinki Finland

1

“+” is the (prefix) number you enter to make an international telephone call.

Customer Support v

Omni 56K Plus Series User’s Guide

List of Tables

Table 2-1 Hardware Specification ........................................................................................................2-1

Table 2-2 Firmware Specification ........................................................................................................2-1

Table 2-3 Feature Description ..............................................................................................................2-4

Table 2-4 Physical Layer Capacity.......................................................................................................2-4

Table 2-5 Different Ring Types in Register S40 ..................................................................................2-8

Table 2-6 Fax Physical Layer Capacity..............................................................................................2-10

Table 3-1 Result Codes.........................................................................................................................3-1

Table 4-1 Basic AT Command Sets .....................................................................................................4-1

Table 4-2 AT Command Sets Requiring an "AT" Prefix .....................................................................4-1

Table 4-3 Extended AT& Command Sets ............................................................................................4-3

Table 4-4 Extended AT* Command Sets .............................................................................................4-6

Table 4-5 Extended AT# Command Sets .............................................................................................4-8

Table 4-6 Service Class 1 Commands ..................................................................................................4-8

Table 4-7 The Value of <MOD> Parameters .......................................................................................4-8

Table 4-8 Command Syntax .................................................................................................................4-9

Table 4-9 Supported Commands (per TIA PN2388 8/20/90)...............................................................4-9

Table 4-10 Class 2 Command Responses...........................................................................................4-12

Table 4-11 Service Class 2.0 Commands ...........................................................................................4-13

Table 4-12 Voice AT Commands.......................................................................................................4-16

Table 4-13 Voice Shielded DTE Commands .....................................................................................4-18

Table 4-14 Voice Shielded DTE Responses.......................................................................................4-18

Table 4-15 Basic S-Registers "ATSn=x"............................................................................................4-19

Table 4-16 Extended S-Registers "ATSn=x" .....................................................................................4-19

List of Tables vii

Omni 56K Plus Series User’s Guide

Preface

About This User's Manual

Congratulations on your purchase of the ZyXEL Omni 56K USB Plus or Omni 56K COM Plus modem.

This manual is designed to provide general information for Omni 56K USB Plus and Omni 56K COM Plus modems and advanced information for technical users who might need them for programming or other applications.

This manual may refer to the Omni 56K USB Plus and/or Omni 56K COM Plus modems as the Omni 56K Plus.

Introduction

This chapter introduces you to the features and specifications for the ZyXEL Omni 56K USB

Plus and Omni 56K COM Plus modems.

1.1 ZyXEL Omni 56K Plus modem Overview

The Omni 56K USB Plus or Omni 56K COM Plus is an analog Data/Fax modem used for Internet access via PSTN line. Models included in this series at the time of writing are the Omni 56K COM Plus and the Omni 56K USB Plus. The difference between these two models is: the Omni 56K COM Plus uses RS-232 Com port interface and the Omni 56K USB Plus uses Universal Serial Bus (USB) connection to a computer. Users can connect the cables without turning off the computer which makes it simple to install the modem. It can run upstream and downstream maximum rates of 56Kbps. The rate selection depends on the line quality, and server side configuration.

1.2 Main Features

 ZyXEL fifth generation data pump with V.92 capability.

 V.92 56K up/down-stream data transmission.

 Fast retrain with auto fall-forward and fall-back.

 Automatic Data/Fax call detection.

 G3 14.4Kbps Fax send/receive.

 Support Fax class 1, class 2 and class 2.0 command set.

 Handset voice record and play.

 Voice digitization and compression.

 Voice record via IS101 Command Set

 Error correction & data compression.

 Microsoft 95/98//98SEMe/2000/XP Windows plug and play compatible (Omni 56K COM

Plus only).

 Microsoft 98SE/Me/2000/XP Windows USB plug and play compatible (Omni 56K USB

Plus only).

 Flash EPROM upgradeable.

Introduction 1-1

Omni 56K Plus Series User’s Guide

Chapter 2

Specifications and Function

Description

This chapter introduces the specifications and functions of the Omni 56K Plus. This chapter

and the next three chapters are designed for advanced users who might need more

information about the Omni 56K Plus modem's specifications and functions when

programming or other applications.

2.1 Hardware Specifications

Table 2-1 Hardware Specification

ITEM SPECIFICATION DESCRIPTION

Power Requirements 9V AC (Omni 56K COM Plus only)

Operating Requirements

Weight Omni 56K COM Plus: 194.6 g

Dimensions

Temperature: 0° C to 40° C

Humidity: 20 to 90 % (non-condensing)

Omni 56K USB Plus: 170.4 g

112.5 mm (W) x 29 mm (H) x 106 mm (L)

2.2 Firmware Specifications

Table 2-2 Firmware Specification

Physical layer for data mode

Multi-Auto

V.92

V.90

V.34bis 33.6 Kbps to 2.4 Kbps

V.34 28.8 Kbps to 2.4 Kbps

V.32bis 14.4/12/9.6/7.2/4.8 Kbps

V.32 9.6/4.8 Kbps

V.23 1200/600/75 bps

V.22bis 2.4 Kbps

V.22/Bell 212A 1.2K bps

V.21/Bell 103 300 bps

Auto Fallback/Forward

Specifications and Function Description 2-1

Omni 56K Plus Series User’s Guide

Table 2-2 Firmware Specification

Link layer

Flow Control

Command set

Diagnostics

Fax

Voice

MNP 3-4

MNP 5

V42

V42bis

V.44

Hardware flow control: RTS/CTS

Software flow control: XON/XOFF

Full AT command set

Dialing type: DTMF/Pulse

Power-on self-test

Analog loop-back test

Analog loop-back with self-test

Local digital loop-back test

Remote digital loop-back test

Remote digital loop-back with self-test

V.17 FAX (send and receive)

V.29 G3 FAX (send and receive)

V.27ter G3 FAX (send and receive)

EIA Class 1 Command SetEIA Class 2 Command Set

EIA Class 2.0 Command Set

4 bits / sample ADPCM,9600 samples / second.

On-line voice playback and recording.

IS-101 voice command set.

2.3 Protocol Support

 Data Physical Layer

 ITU-T V.92

 ITU-T V.90

 ITU-T V.34bis/V.34

 ITU-T V.32bis/V.32

 ITU-T V.22bis/V.22

 ITU-T V.21

 ITU-T V.23

 Bell 212A

 Bell 103

 Fax Physical Layer

2-2 Specifications and Function Description

Omni 56K Plus Series User’s Guide

 ITU-T V.17

 ITU-T V.29

 ITU-T V.27ter

 ITU-T V.21

 Error Control and Data Compression

 ITU-T V.44

 ITU-T V.42

 ITU-T V.42bis

 MNP3-5

 Command Set

 Standard command set

 EIA Class 1 Fax Command set

 EIA Class 2 Fax Command set

 EIA Class 2.0 Fax Command set

 Basic AT Command set

 ZyXEL AT Command set

 Extended AT& Command Set

 Extended AT* Command Set

 Extended AT# Command Set

 IS101 Voice Command set

For more information on detailed command sets, please refer to Chapter 4.

2.4 Capability

The data/fax/voice feature of the Omni 56K Plus is described as below.

Specifications and Function Description 2-3

Omni 56K Plus Series User’s Guide

Table 2-3 Feature Description

FEATURE DESCRIPTION

Data 2W Dial-Up Line

Multi-auto/ V.92/V.90/V.34/V.32bis/V.32/V.22bis/V.22/V.21/Bell 103

Hardware/Software Flow Control

Error Control/Data Compression

ZyXEL AT Command Set

External Plug and Play for Windows 95/98/98SE/Me/2000/XP in RS232 mode

External Plug and Play for Windows 98SE/Me/2000/XP in USB mode

Repeat Dial/Cyclic Dial

Caller ID

Distinctive Ring

AT Protection for software application

Fax V.17/V.29/V.27ter

G3 T.30 Protocol

EIA Class 1/Class 2/Class 2.0 command set

Voice 4 bit IMA ADPCM

Remote Recording on PC storage

Play and record voice via the attached telephone set.

IS-101 Command Set

2.5 Data Function

2.5.1 Physical Layer Capability

The Omni 56K Plus is a high performance universal modem capable of transmission speed up to 56/48 Kbps full-duplex on a 2-wire dial-up line. Universal compatibility covers a broad range of ITU-T and BELL standards.

Table 2-4 Physical Layer Capacity

STANDARD BIT RATE [BPS] BAUD RATE [BAUD] MODULATION CARRIER FREQUENCY [HZ]

V.90 28000-56000 8000 PCM 0

V.92 (upstream)

V.92 (downstream)

V.34bis/V.34 2400-33600 multiple TCM multiple

V.32bis 14400 2400 128-TCM 1800

V.32bis 12000 2400 64-TCM 1800

V.32bis 7200 2400 16-TCM 1800

V.32 9600 2400 32-TCM 1800

24000-48000 8000 PCM 0

24000-56000 8000 PCM 0

2-4 Specifications and Function Description

Omni 56K Plus Series User’s Guide

Table 2-4 Physical Layer Capacity

STANDARD BIT RATE [BPS] BAUD RATE [BAUD] MODULATION CARRIER FREQUENCY [HZ]

V.32 uncoded 9600 2400 16-QAM 1800

V.32 4800 2400 4-DPSK 1800

V.23 1200/75 1200/75 FSK

V.23 600/75 600/75 FSK

V.22bis 2400 600 16-QAM 1200 Call

2400 Ans

V.22

(BELL 212A)

V.21 300 300 FSK

BELL 103 300 300 FSK

1200 600 4-DPSK 1200 Call

2400 Ans

2.5.2 Flow Control

This feature refers to stopping and restarting the flow of data into and out of the modem’s transmission and receiving data buffers. Flow control is necessary so that a device does not receive more data than it can handle. The Omni 56K Plus provide two kinds of flow control methods.

2.5.3 Hardware CTS/RTS Flow Control

This is a bi-directional flow control where CTS and RTS are RS-232 signals which must be available on your computer. When the modem’s transmission buffer is almost full, the modem will drop CTS to signal the DTE that it cannot accept data any more. Turn on the CTS to notify the DTE that it can keep sending data to the modem. On the computer software side, when the receiving buffer of the software is almost full, it will drop RTS to signal the modem to stop sending data to the DTE. Turn on the RTS and the modem will start sending data again to the DTE.

2.5.4 Software XON/XOFF Flow Control

This is a bi-directional flow control. XON and XOFF character defaults are decimals 17 and 19.These can be changed by modifying the S-Registers S31 and S32.Both the modem and the DTE will treat XOFF as a signal to stop transmitting data and will treat XON as a signal to restart sending data. Modems will not send these characters received from the local DTE to the remote modem.

2.5.5 Error Control

Error control keeps the modem data link error-free by detecting and re-transmitting erroneous data. The Omni 56K Plus modems support both MNP and V.42 error control protocols. The MNP protocol was an industry standard developed and licensed by Microcom, Inc. Omni 56K Plus modems support level 4 and 3 error control protocols, commonly denoted as MNP4 and MNP3.

V42 is a developed standard by CCITT. V.42 supports both LAPM and MNP4. A V.42 handshaking will try an LAPM connection first, and if not successful, it will try MNP4. The maximum data block size used in the Omni 56K Plus modem is 256 bytes.

Specifications and Function Description 2-5

Omni 56K Plus Series User’s Guide

2.5.6 Data Compression

In the modem, the data compression is activated in an attempt to reduce the number of bits actually sent. The receiving modem applies these techniques in reverse to recover the actual data from the compressed data stream.

Omni 56K Plus modems support V.44, V.42bis and MNP5 data compression protocols. Data compression needs an error-free data link to work correctly, otherwise the corrupted compressed data stream will ruin the decompression process. MNP5 is used with MNP4 error control. V.44 and V.42bis is used with V.42 error control. The compression efficiency of V.42bis is generally higher than that of MNP5. In some cases, V.42bis can be 50 % to 100% higher and in other cases it is just slightly higher. In general, it is about 50 % more efficient.

2.5.7 Repeat Dial

The modem will dial the default number stored in non-volatile RAM, EEPROM , repeatedly if not connected.(s38.0=1,*Dn)

2.5.8 Cyclic Dial

Dial the number stored in EEPROM at location n(0-3) if cyclic dial s44.3=1 is set.

If the first dial is not successful, the modem will cycle dial through the four numbers stored in memory.

2.5.9 Caller Number Delivery (Caller ID)

Caller Number Delivery (CND), commonly called Caller ID, is a new kind of phone service that may be offered by your local phone company. Check your phone company for availability. You must subscribe to it and usually pay an additional monthly service charge for this service.

With CND service, the phone company's central office will send the coded caller information to the called station. This information is sent once between the first and second ring. Your modem can decode this caller information and present it to the connected computer/terminal during the second ring period as part of the call progress ring message. The modem will also report the Caller ID information if asked by the command AT*T.

There are two kinds of caller information message formats sent by the phone company.

One is the single message format which includes date, time, and caller ID

The other is the multiple message format which also includes the caller name as registered with the phone company.

The command ATS40.2=n is used to enable (n=1) or disable (n=0) the Caller ID detection function. The default is disabled. Enable it only when you have this service and want to enable its detection.

 The Caller ID message may cause some communication

software that is not expecting it to become confused. If you plan to use the Caller ID feature, be sure you are using software that supports it.

In single message format, the modem will send a ring message to the terminal as follows:

RING

2-6 Specifications and Function Description

Omni 56K Plus Series User’s Guide

TIME: <MM-DD hh:mm>

CALLER NUMBER: <CALLER_ID> or CALLER NAME:<CALLER_NM>

RING

MM is the two-digit month message, DD is the two-digit date message, hh is the hour and mm is the minute of the time, and CALLER_ID is the phone number of the caller or CALLER_NM his/her name.

The following is an example of a caller ID message as it might appear on your screen:

RING

TIME: 04-28 12:30

CALLER NUMBER: 7135551414 or CALLER NAME: Brent Harper

RING

In the multiple message format, if the caller's number and name are available, the ring message will display both:

RING

TIME: MM-DD hh:mm

CALLER NUMBER: <Caller_ID>

CALLER NAME: <Caller_Name>

RING

Here is an example:

RING

TIME: 04-28 12:30

CALLER NUMBER: 7135551414

CALLER NAME: Tracy Huang

RING

If the caller number and name are not available, the ring message will appear as follows:

RING

TIME: 04-28 12:30

REASON FOR NO NUMBER: OUT_OF_AREA

REASON FOR NO NAME: PRIVACY

RING

The last CND message that the modem received can be displayed by using the AT*T command.

Specifications and Function Description 2-7

Omni 56K Plus Series User’s Guide

Setting S48.0=1 will cause the modem to report CND information in its ASCII coded hexadecimal raw data format. The DTE software is responsible for explaining the data.

 Please refer to the Bellcore Technical Advisory document TR-

NWT-000030 for the exact data format. The above Caller ID scheme applies to the North America area. Different countries may employ different Caller ID schemes, check if the scheme used in your country is supported before using the Caller ID feature. For most other Caller ID schemes, only the Caller telephone number is provided.

2.5.10 Distinctive Ring

Distinctive Ring is a phone service that may be offered by your phone company. Check your phone company for availability. With this service, you can have several phone numbers assigned to the same phone line. The phone company will send a different type of ring signal for each phone number being called. The subscriber can distinguish which number is called by which type of ring is received.

One benefit of this feature is the ability to have three numbers on the same line allowing you to list the three numbers for voice, data, and fax, respectively. You can then have your fax machine answer only the ring corresponding to the fax number and have your modem answer only the ring corresponding to the data number. A voice call will not be answered by either fax machine or data modem and it will only be answered when someone picks up the phone. You can also have the answering machine answer only the voice ring. A more complicated use is that you can have one number for multiple uses, such as one number for both data and fax.

A ring signal is a composition of repeated on and off states. Different types of rings usually correspond to different compositions of the ”on” part (cadence) of the ring. Your modem can distinguish up to four types of ring signals and can be commanded to answer or not answer any one of these four types of ring signals. Following is a list of these four types of ring signals. These are the ring types used in the USA. The difference among the ring types is the two-second ON part of the ring signal. It comprises a long, double short, or triple short ring.

S-register S40 bits 3-6 are used for distinctive ring control. Each bit controls the answering of a particular ring type. Setting a bit to “1” enables answering, setting it to “0” rejects the ring. Note that the ring may still be heard even if it is not counted as an accepted ring by the modem.

The control relationships between bits 3-6 in register S40 and the different ring types are:

Table 2-5 Different Ring Types in Register S40

TYPE BIT (ON) RING SEQUENCE

1

2

3

4

3

4

5

6

1.2s or 2s on; 4s off

0.8s on, 0.4s off, 0.8s on; 4s off

0.4s on, 0.2s off, 0.4s on, 0.2s off, 0.8s on; 4s off

0.3s on, 0.2s off, 1s on, 0.2s off, 0.3s on; 4s off

2.5.11 Security Function

The Omni 56K Plus modem provides a security function, that (when enabled) prevents an unauthorized user from making a connection. Two types of security function are provided. Type 1

2-8 Specifications and Function Description

Omni 56K Plus Series User’s Guide

security is used when the remote modem is also a ZyXEL modem; type 2 security is used when the remote modem is any other brand of modem.

With the type 1 connection, the dial-in (remote) modem will send in its supervisor password for checking at the initial connection handshake, and the local modem will check this password against its pre-stored acceptable password list. With a type 2 connection, the remote terminal will be prompted to enter the password at the initial connection and the local modem will do the password checking.

Two levels of security are provided. With level 1 security, the local modem will maintain the connection if the password check is OK, otherwise the line will be disconnected. With level 2 security, the local modem will disconnect the line if the password has been found in its pre-stored acceptable list and then will dial back the phone number corresponding to the dial-in password. The line will be simply disconnected if the password does not march.

4 user passwords may be defined. The corresponding.4 dial-back numbers are the modem’s 4 stored phone numbers. Any character (ASCII 0-127) can be used in the password, the maximum password length is 8 characters.

The security functions are only accessible through AT commands in terminal mode. Any access attempt will result in the modem’s prompting to enter the supervisor password. The attempt will be rejected if the entered password is not correct. The default supervisor password is ZyXEL when the modem is shipped from the factory. This supervisor password is also the password sent for automatic password checking in a type 1 connection. To modify the supervisor password, use

AT*HS

You will be asked for the original password and a new password and then to re-enter the new password for verification. For example:

PASSWORD (Enter supervisor password)

********

PASSWORD (Enter new supervisor password)

********

Verify (Enter the new supervisor password again)

********

OK

The command AT*Hn will modify the nth user password and the supervisor password on the screen for viewing. Again, you will be prompted to enter the supervisor password first.

The commands below will enable different types and levels of security:

CODE DESCRIPTION

*G0 Disable security function (Default).

*G1 Enable type 1 security with password check. (ZyXEL to ZyXEL only)

*G2 Enable type 1 security with password check and call-back (ZyXEL to ZyXEL only)

*G3 Enable type 2 security with password check.

*G4 Enable type 2 security with password check and call-back.

*G5 Enable type 2 security with password check and call-back, remote site enters the call-

back number.

Specifications and Function Description 2-9

Omni 56K Plus Series User’s Guide

 Before the security type or level can be changed, the modem

requires the supervisor password.

For type2 security, the remote site will be prompted to enter the user password. A maximum of 3 tries in 40 seconds is allowed. If a correct password is not entered within this time limit, the line will be disconnected. If the remote site is to enter the call-back number, it will be prompted to do so.

2.6 Fax function

2.6.1 Fax Physical Layer Protocol

Table 2-6 Fax Physical Layer Capacity

STANDARD BIT RATE [BPS] BAUD RATE [BAUD] MODULATION CARRIER FREQUENCY [HZ]

V.17 14400-7200 2400 TCM 1800

V.29 9600-4800 2400 QAM/DPSK 1700

V.27ter 4800-2400 1600/1200 PSK/DPSK 1800

V.21 300 300 FSK

2.6.2 EIA Class 1/Class 2/Class 2.0 Command Set

Please refer to Fax Command Set in Chapter 4.

2.6.3 ITU-T T.30 Fax Protocol

The ITU-T T.30 fax protocol is known as the G3 fax handshake signals and procedures. The modem takes full control of this protocol - initiating and terminating fax calls, managing the communication session, and transporting the image data. Therefore, the modem relieves the computer fax software of the T.30 protocol handling.

You modem allows for fax speeds up to 14400 bps when transmitting to a fax machine which complies with the V.17 fax standard. Speeds will fall back to 12000, 9600, or 7200 bps in poor line conditions. When connecting to a G3 fax device, your modem allows for fax speeds up to 9600 bps and will automatically fall back to 7200, 4800, and 2400 bps if the line quality is poor.

2.7 Voice Function

Voice capability stands for the modem’s ability to digitize incoming voice messages, which the computer stores and forwards. It also means that the modem can playback the recorded digitized voice on line for a message announcement.

2.7.1 Voice IS-101 Command Set

Please refer to the Voice command sets in Chapter 4.

2.7.2 4-bit Voice Data Compression

The main issue in the digitized voice mode is the amount of storage required. A relatively simple ADPCM algorithm can reduce the speech data rate to half the rate and maintain about the same voice

2-10 Specifications and Function Description

Omni 56K Plus Series User’s Guide

quality. This algorithm can also be used to reduce the speech data rate to 1/3 or 1/4 of the original rate, but with voice quality degradation. Only 4-bit ADPCM is used in the Omni 56K Plus.

Specifications and Function Description 2-11

Omni 56K Plus Series User’s Guide

Chapter 3

Result Codes

A result code is the command response or the connect message to the DTE. The format of the result code is dependent on Xn and Vn command .The result codes are shown in the following table.

Table 3-1 Result Codes

Result Code for ATV0 ATV1

0 OK

1 CONNECT

2 RING

3 NO CARRIER

4 ERROR

5 CONNECT 1200

6 NO DIAL TONE 0

7 BUSY

8 NO ANSWER

9 RINGING

10 CONNECT 2400

11 CONNECT 4800

12 CONNECT 9600

13 CONNECT 300

14 CONNECT 19200

15 CONNECT 7200

16 CONNECT 12000

17 CONNECT 14400

18 CONNECT 16800

19 CONNECT 38400

20 CONNECT 57600

21 CONNECT 76800

22 CONNECT 115200

23 CONNECT 230400

24 CONNECT 460800

25 CONNECT 921600

26 CONNECT 307200

27 CONNECT 153600

27 CONNECT 102400

29 CONNECT 61440

30 CONNECT 51200

X0 X1 X2 X3 X4 X5 X6 X7

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

X X X

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

X X X

X

Result Codes 3-1

Omni 56K Plus Series User’s Guide

Table 3-1 Result Codes

Result Code for ATV0 ATV1

31 CONNECT624000

32 CONNECT124800

33 CONNECT 62400

34 CONNECT 41600

35 CONNECT 31200

36 CONNECT 24960

37 CONNECT 20800

38 CONNECT 33600

39 CONNECT 28800

40 CONNECT 26400

41 42 100 CONNECT 56000

101 CONNECT 54666

102 CONNECT 53333

103 CONNECT 52000

104 CONNECT 50666

105 CONNECT 49333

106 CONNECT 48000

107 CONNECT 46666

108 CONNECT 45333

109 CONNECT 44000

110 CONNECT 42666

111 CONNECT 41333

112 CONNECT 40000

113 CONNECT 38666

114 CONNECT 37333

115 CONNECT 36000

116 CONNECT 34666

117 CONNECT 33333

118 CONNECT 32000

119 CONNECT 30666

120 CONNECT 29333

121 CONNECT 28000

CONNECT 24000 CONNECT21600

X0 X1 X2 X3 X4 X5 X6 X7

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0

X

X X X

X

X X X

If error control result codes are enabled (X4, X5, X6, X7), the resulting message will be formatted as:

X4: CARRIER Rx Rate.

PROTOCOL: Error Control Level

3-2 Result Codes

Omni 56K Plus Series User’s Guide

COMPRESSION: Compression Level

CONNECT DTE Speed

X5: CONNECT DTE Speed/Protocol Rx Rate/Error control level

X6: CONNECT Rx Rate/ARQ

X7: CONNECT Rx Rate/ARQ/Error control level

Where ARQ denotes that Automatic Retransmission reQuest type of error control is enabled.

Result Codes 3-3

Omni 56K Plus Series User’s Guide

Chapter 4

Command Sets

This chapter lists the command set the Omni 56K Plus supports. These commands include

data command sets, fax command sets and voice command sets.

4.1 Data command sets

The basic AT command sets and extended AT& command sets are shown in the following tables.

4.1.1 Basic AT Command Sets

Table 4-1 Basic AT Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

A/ Re-execute the last command once.

A> Re-execute the last command once or repeat the last call up to

9 times. (See also S8)

<any key> Terminate current connection attempt when entered in

handshaking state.

+++ Escape sequence code, entered in data state, wait for modem

to return to on line command mode.

All the Following Commands Require an “AT” Prefix:

Table 4-2 AT Command Sets Requiring an "AT" Prefix

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

A Go on-line in answer mode. (See also S39.2, S43.6)

Bn Handshake option. S28.7

B0 * Select CCITT V.22 for 1200 bps

B1 Select Bell 212A for 1200 bps communication.

Ds Dial s (numbers and options) that follow (see also S38.0,

S35.4). The options of s are listed as follows:

0-9, A, B, C, D

#, *

P Pulse dialing S23.1

T Tone dialing S23.1

, Pause for a time specified in S8. Remaining digits will be dialed

; Return to command state after dialing.

! Hook flash S56

@ Wait for a 5 second silence before proceeding , otherwise return

Digits for dialing

as in-band DTMF.

NO ANSWER.

R Reverse handshake. (go on-line in Answer mode) S17.5

Command Sets 4-1

Omni 56K Plus Series User’s Guide

Table 4-2 AT Command Sets Requiring an "AT" Prefix

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

W Wait for the second dial tone. Remaining digits will be dialed as

in-band DTMF.

DL Dials the last-dialed number.

DSn n=0-3 Dial the number stored in non-volatile RAM at location 'n.' S44.3

En Command mode local echo of keyboard commands. S23.0

E0 Echo off

E1 * Echo on

Hn On/off hook control.

H0 * Hang up (on-hook) the modem or ISDN, same as 'ATH.

H1 Off hook the modem.

In Display inquired information.

I0 Display numerical product code, same as 'ATI.'

I1 Display product information and ROM checksum.

I2 Display modem link status report.

I12 Display physical layer status.

I13 Display channel response for V.34

Ln n=0-7

4 *

Speaker volume control. The higher the value, the higher the volume.

S24.4-6

Mn Speaker control S21.1-2

M0 Speaker is always OFF.

M1 * Speaker is ON until carrier detected.

M2 Speaker is always ON.

M3 Speaker is ON after the last digit is dialed out Tone dialing is not

heard.

Nn n=0-7

5 *

O Return to on-line state.

O1 Force modem to request a retrain.

Qn Result code displayed. S23.7

Q0 * Modem returns result code.

Q1 Modem does not return result code.

Q2 Modem returns result code but quiet after answering on a RING.

Sr.b=n Set bit 'b' of S-register 'r' to value 'n'. 'n' is a binary digit '0' or '1'

Sr.b? Display value of bit 'b' of S-register 'r'

Sr=n Set S-register 'r' to value 'n'. 'n' must be a decimal number

Ring volume control. 'N0' will disable the audio ring function. S24.1-3

(see also S42.2)

between 0 and 255.

S40.1

4-2 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-2 AT Command Sets Requiring an "AT" Prefix

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

Sr? Display value stored in S-register 'r'

T Tone dial S23.1

UPX Download firmware to the Flash EPROM by using Xmodem

protocol.

Vn Sets display type for Result Codes. S23.6

V0 Display result code in numeric form. (See also S35.7 and the

result code table of 'ATXn')

V1 * Display result code in verbose form.

Xn n=0-7

5 *

Zn n=0-2 Reset modem and set power-on profile. S15.5-7

Zn Reset modem and load user profile n (0-1).

Z2 Reset modem and load factory settings.

$ Basic command summary help

&$ Extended 'AT&' command summary help

*$ Extended 'AT*' command summary help

+++ Escape sequence code, entered in data state, wait for modem

Result code options, see the Options Table. S23.3-5

to return to command state.

4.1.2 Extended AT& Command Sets

Table 4-3 Extended AT& Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

&Bn Data rate, terminal-to-modem. (DTE/DCE) S28.6

&B0 DTE rate follows connection rate. (See also S44.6)

&B1 * DTE/DCE rate fixed at DTE setting (See also S18, S20, and

S44.6)

&Cn Carrier Detect (CD) options S21.4

&C0 CD always ON (See also S42.7)

&C1 * CD tracks presence of carrier (See also S38.3, S42.7)

&Dn Data Terminal Ready (DTR) options. (See also S25) S21.6-7

&D0 Ignore DTR signal, assume DTR is always ON.

&D1 108.1, DTR OFF-ON transition causes dial of the default

number. (See also 'AT*Dn' and S48.4)

&D2 * 108.2, Data Terminal Ready, DTR OFF causes the modem to

hang up.

&D3 Same as &D2 but DTR OFF causes the modem to hang up and

reset from profile 0.

&F Load factory settings to RAM as active configuration.

Command Sets 4-3

Omni 56K Plus Series User’s Guide

Table 4-3 Extended AT& Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

&Gn Guard tone options S28.4-5

&G0 * No guard tone (within USA, Canada).

&G2 1800 Hz guard tone.

&Hn Data flow control, DTE/DCE. S27.3-5

&H0 Flow control disabled.

&H3 * Hardware (CTS/RTS) flow control.

&H4 Software (XON/XOFF) flow control.

&Kn Modem error control and data compression. S27.0-2

&K0 No error control.(Same as AT&K)

&K1 MNP4 (See also S41.0).(include MNP3)

&K2 MNP4+MNP5 (See also S38.5, S41.0).

&K3 V.42+MNP4.

&K4 * V.42+V.42bis, compatible with &K2 (See also S38.5).

&K5 V.42+V.44

&Nn Modem link mode options (DCE/DCE). (See also S43.7, S48.1) S19

&N0 * Multi-Auto, auto negotiate highest possible link rate: V.92, V.90,

V.34bis, V.32bis, V.32, V.22bis, V.22 and Bell 212A, G3 Fax V.17/V.29/V.27ter.

&N3 V.32 9600T/9600/7200T/4800

&N4 V.32 9600/7200/4800

&N5 V.32 4800

&N12 V.23 1200/75

&N13 V.23 600/75

&N14 V.22bis 2400/1200

&N15 V.22 1200

&N16 V.21 300

&N17 V.32bis 14400/12000/9600/7200/4800

&N18 V.32bis 12000/9600/7200/4800

&N19 V.32bis 7200/4800

&N24 BELL 212A 1200

&N25 BELL 103 300

&N60 V.34 33600

&N61 V.34 31200

&N62 V.34 28800

&N63 V.34 26400

&N64 V.34 24000

4-4 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-3 Extended AT& Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

&N65 V.34 21600

&N66 V.34 19200

&N67 V.34 16800

&N68 V.34 14400

&N69 V.34 12000

&N70 V.34 9600

&N71 V.34 7200

&N72 V.34 4800

&N73 V.34 2400

&N99 V.90 28000

&N98 V.90 29333

&N97 V.90 30666

&N96 V.90 32000

&N95 V.90 33333

&N94 V.90 34666

&N93 V.90 36000

&N92 V.90 37333

&N91 V.90 38666

&N90 V.90 40000

&N89 V.90 41333

&N88 V.90 42666

&N87 V.90 44000

&N86 V.90 45333

&N85 V.90 46666

&N84 V.90 48000

&N83 V.90 49333

&N82 V.90 50666

&N81 V.90 52000

&N80 V.90 53333

&N79 V.90 54666

&N78 V.90 56000

&Pn Pulse dial make/break ratio. S23.2

&P0 * make / break=39% / 61%

&P1 make / break=33% / 67%

&Rn RTS (Request To Send) function selection. S21.5

Command Sets 4-5

Omni 56K Plus Series User’s Guide

Table 4-3 Extended AT& Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

&R0 CTS tracks RTS, response delay is set in S26.

&R1 * Ignore RTS, assumes RTS always ON.

&Sn Data Set Ready (DSR) function selection. S21.3

&S0 * DSR overridden, DSR always ON.

&S1 DSR according to CCITT (ITU-TSS). (See also S41.5, S44.4)

&Tn Modem testing. S16

&T0 Terminate test in progress.

&T1 Initiate Analog Loop-back (ALB) test.

&T3 Initiate Local Digital Loop-back (LDL) test.

&T4 Grant Remote Digital Loop-back request from remote modem. S14.1

&T5 Deny Remote Digital Loop-back request from remote modem. S14.1

&T6 Initiate Remote Digital Loop-back (RDL) test.

&T7 Initiate Remote Digital Loop-back with self test. (RDL+ST)

&T8 Initiate Analog Loop-back with self test. (ALB+ST)

&Vn View profile settings.

&V0 View current active settings.

&Vn View the (n-1) user profile settings (n=1-2)

&V3 View factory default settings.

&Wn n=0-1 Save current settings to user profile n in non-volatile RAM. (See

also S35.6)

&Yn Break handling. Destructive Break clears the buffer. Expedited

Break is sent immediately to the remote system.

&Y0 Destructive, expedited.

&Y1 * Nondestructive, expedited.

&Y2 Nondestructive, unexpedited.

&Z? Display all the phone numbers stored in non-volatile RAM.

&Zn=s n=0-3 Store phone number/s to NVRAM at location n (n=0-3) use

AT*Dn or ATS29=n to set the default dial pointer.

S28.2-3

4.1.3 Extended AT* Command Sets

Table 4-4 Extended AT* Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

*Cn Character length, including start, stop and parity bit. S15.3-4

*C0 * 10-bit character length

*C1 11-bit character length

*C2 9-bit character length

4-6 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-4 Extended AT* Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

*C3 8-bit character length

*Dn n=0-3 Set default dial pointer at telephone directory location 'n.' S29

*D0 * (See also S35.4 and S38.0)

*En Modem error control negotiation. S21.0

*E0 * if error control negotiation fails, keep the non-error control

connection.

*E1 If error control negotiation fails, disconnect the call (hang-up).

*Gn *G0 Disables security function. (Default)

*G1 Enables type 1 security, with password check.

*G2 Enables type 1 security, with password check and call back.

*G3 Enables type 2 security, with password check.

*G4 Enables type 2 security, with password check and call back.

*G5 Enables type 2 security, with password check and call back;

remote site enters the call-back number.

*G9 Reset the supervisor password to "ZyXEL".

Note:

The command *Gn requests supervisor password checking.

In security type 1, the remote site must be a ZyXEL modem.

In security type 2, the remote site can be any other type of modem.

The modem can store 4 (0-3) telephone numbers. If call back security is disabled, the modem will search the password table to check the remote modem's password. If they match, the modem will keep the connection, otherwise the modem will hand up. If call back security is enabled, the modem will complete the password checking. If there is no match, the modem will disconnect the line, otherwise the modem will disconnect the line, find the corresponding phone number and call back immediately. The remote modem should be set to auto-answer the call and response.

*HS Modifies supervisor password.

Note: The default supervisor password is ZyXEL.

*Hn N=0-3 Modifies the user password table at location 'n.'

*In

*Pn n=0-15

*Qn Action taken when line quality changes. S27.6-7

*Q0 No action to poor signal quality.

*Q1 Retrain action taken if signal quality is poor. (See also S41.2)

*Q2 * Adaptive rate, automatic fall-back or forward.

Command set selection S17.6-7

*I0 * AT command set

*I2 Dumb mode

*P9 *

Set transmission power level; ranges from -8 dBm to -15 dBm. (Default: -11 dBm)

S17.1-4

Command Sets 4-7

Omni 56K Plus Series User’s Guide

Table 4-4 Extended AT* Command Sets

COMMAND OPTIONS FUNCTION & DESCRIPTION REF.

*Q3 Disconnect if signal quality is poor.

*T Recall the last CND (Caller ID) information. S40.2

*V Views password table.

4.1.4 Extended AT# Command Sets

Table 4-5 Extended AT# Command Sets

COMMAND OPTIONS

#En Modem status in escape state

#E0 Disable the report of modem status in escape state

#E1 Enable the report of modem status in escape state

FUNCTION & DESCRIPTION REF.

4.2 Fax command sets

4.2.1 Service Class 1 Commands

Table 4-6 Service Class 1 Commands

COMMAND DESCRIPTION VALUE

+FCLASS=n Service Class Identification and Control n=0:Sets to modem mode

n=1:Sets to Class 1 mode

n=2.0:Sets to Class 2.0 mode

n=8:Sets to Voice mode

+FTS=n Stop Transmission and pauses n=0-255 in 10 ms units.

+FRS=n Wait for Silence n=0-255 in 10 ms units.

+FTM=<MOD> Transmit Data with <MOD> Carrier See table 16

+FRM=<MOD> Receive Data with <MOD> Carrier See table 16

+FTH=n Transmit HDLC Data with <MOD>=3 Carrier n=3

+FRH=n Receive HDLC Data with <MOD>=3 Carrier n=3

The value of <MOD> parameters lists as below:

Table 4-7 The Value of <MOD> Parameters

VALUE MODULATION SPEED

3 V.21 ch 2 300

24 V.27ter 2400

48 V.27ter 4800

72 V.29 7200

73 V.17 7200

4-8 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-7 The Value of <MOD> Parameters

VALUE MODULATION SPEED

74 V.17 short train 7200

96 V.29 9600

97 V.17 9600

98 V.17 short train 9600

121 V.17 12000

122 V.17 short train 12000

145 V.17 14400

146 V.17 short train 14400

4.2.2 Service Class 2 Commands

The following Class 2 commands are supported and implemented as per TIA PN2388 (8/20/90):

Table 4-8 Command Syntax

COMMAND SYNTAX DESCRIPTION

+<command>=<value> Execute a command or set a parameter.

+<command>=? Read permissible settings.

+<command>? Read current setting.

Table 4-9 Supported Commands (per TIA PN2388 8/20/90)

COMMAND DESCRIPTION VALUE

+FAA=n Auto-answer mode parameter:

Answer as set by +FCLASS. n=0

DCE answers and auto-determines type. n=1

+FBADLIN= <value> Bad line threshold (number of consecutive bad lines for a bad page

parameter): Determine if Copy Quality OK on the T.30 flow chart. <value>=0 to 255; a value of 0 implies that error checking is disabled.

+FBOR=n Phase C data bit order:

Select direct bit order. n=0

Select reversed bit order in receiving mode for phase C data. n=1

+FBUF? Buffer size; read only parameter:

Allow DTE to determine the characteristics of the DCE’s buffer size.

+FCIG="string" Local fax station ID string, for polling Rx.

+FCLASS=n Service class selection: Refer to +FCLASS Class 1 command in

previous section.

+FCON DCE responds fax connection.

+FCQ=n Copy quality check capability parameter

No copy quality check capability. n=0

0-255

Command Sets 4-9

Omni 56K Plus Series User’s Guide

Table 4-9 Supported Commands (per TIA PN2388 8/20/90)

COMMAND DESCRIPTION VALUE

Only check 1D phase C data. n=1

Check both 1D and 2D phase C data. n=2

+FCR=n "Capability to receive" parameter

DCE will not receive message data or poll a remote device. n=0

DCE receives message data or polls a remote device. n=1

+FDCC=vr,br,wd,ln,d f,ec,bf,st

Vertical resolution: Normal; 98 lpi. vr=0

Vertical resolution: Fine; 196 lpi. vr=1

Bit rate: 2400 bit/s; V.27ter. br=0

Bit rate: 4800 bit/s; V.27ter. br=1

Bit rate: 7200 bit/s; V.29 or V.17. br=2

Bit rate: 9600 bit/s; V.29 or V.17. br=3

Bit rate: 12000 bit/s; V.17. br=4

Bit rate: 14400 bit/s; V.17. br=5

Page width: 1728 pixels in 215mm. wd=0

Page width: 2048 pixels in 255mm. wd=1

Page width: 2432 pixels in 303mm. wd=2

Page length: A4; 297mm. ln=0

Page length: B4; 364mm. ln=1

Page length: unlimited length. ln=2

Data compression format: 1-D; modified Huffman. df=0

Data compression format: 2-D; modified Read. df=1

Error correction disabled. ec=0

Disable binary file transfer. bf=0

Minimum scan time/line: 0 ms. st=0

Minimum scan time/line: 5 ms. st=1

Minimum scan time/line:10 ms (normal); 5 ms (fine). st=2

Minimum scan time/line:10 ms. st=3

Minimum scan time/line:20 ms (normal); 10ms (fine). st=4

Minimum scan time/line:20 ms. st=5

Minimum scan time/line:40 ms (normal); 20ms (fine). st=6

Minimum scan time/line:40 ms. st=7

+FDCS=vr,br,wd,ln,d f,ec,bf,st

+FDIS=vr,br,wd,ln,df, ec,bf,st

DCE capabilities parameters.

Current session parameter; refer to +FDCC command.

Current session negotiation parameter; refer to +FDCC command.

4-10 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-9 Supported Commands (per TIA PN2388 8/20/90)

COMMAND DESCRIPTION VALUE

+FDR Receive phase C data command; initiates document reception.

+FDT=df,vr,wd, ln Transmit phase C data command: release the DCE to proceed with

negotiation.

+FET=n End of page or document command:

More pages; same document. n=0

End of document; another document follows. n=1

No more pages or documents. n=2

Procedure interrupt; another page follows. n=4

Procedure interrupt; end of document, another document follows. n=5

Procedure interrupt; end of document. n=6

+FK Regular fax abort command.

+FLID="string" Local ID string parameter.

+FLO=n Flow control options:

No flow control. n=0

Set XON/XOFF software flow control. n=1

Set CTS/RTS hardware flow control. n=2

+FLPL=n Document for polling command:

The DTE has no document available for polling. n=0

Indicate a document available for polling. n=1

+FMDL? Request DCE model.

+FMFR? Request DCE manufacturer.

+FMINSP=n Minimum phase C speed parameter:

2400 bps. n=0

4800 bps. n=1

7200 bps. n=2

9600 bps. n=3

12000 bps. n=4

14400 bps. n=5

+FPHCTO= <value>

+FPTS=n Page transfer status

Received page good. n=1

Page bad; retrain requested. n=2

Page good; retrain requested. n=3

DTE Phase C response time-out: Determine how long the DCE will wait for a command after reaching the end of data when transmitting in Phase C. <value>=0 to 255; 100 ms units.

0-255

Command Sets 4-11

Omni 56K Plus Series User’s Guide

Table 4-9 Supported Commands (per TIA PN2388 8/20/90)

COMMAND DESCRIPTION VALUE

Page bad; procedure interrupt requested. n=4

Page good; procedure interrupt requested. n=5

+FREL=n Phase C received EOL alignment:

The EOL patterns are bit aligned as received. n=0

The last received bits of EOL patterns are byte aligned by the DCE,

with necessary zero fill bits inserted. Refer to TIA PN-2388 for details.

+FREV? Request the DCE revision identification.

+FSPL=n "Enable polling" command:

Disable polling. n=0

Enable polling. n=1

n=1

All other +F commands are not supported, but the modem will respond OK. In many cases this means "don't care".

Table 4-10 Class 2 Command Responses

RESPONSE VALUE FUNCTION AND DESCRIPTION

+FCFR Confirmation .

+FCIG:"string" Report remote ID response CIG.

+FCON Facsimile connection response.

+FCSI:"string" Report remote ID response CSI.

+FDCS:vr,br,wd,ln,df,ec,bf,st Report session parameters response; refer to +FDCC=....

command.

+FDIS:vr,br,wd,ln,df,ec,bf,st Report session negotiation parameters response; refer to

+FDCC=.... command.

+FDTC:vr,br,wd,ln,df,ec,bf,st Report remote capabilities response; refer to +FDCC=....

command.

+FET:n Post page message response; refer to the +FET=n command.

+FHNG:n

+FNSC:"HEX string" Report the non-standard facilities command frame.

+FNSF:"HEX string" Report the non-standard facilities frame response.

+FNSS:"HEX string" Report the non-standard setup frame response.

Call termination status response.

n=00 Normal and proper end of connection.

n=10 Transmit error on phase A hang up code.

n=20 Transmit error on phase B hang up code.

n=40 Transmit error on phase C hang up code.

n=50 Transmit error on phase D hang up code.

n=70 Receive error on phase B hang up code.

n=90 Receive error on phase C hang up code.

n=100 Receive error on phase D hang up code.

4-12 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-10 Class 2 Command Responses

RESPONSE VALUE FUNCTION AND DESCRIPTION

+FPOLL Remote polling indication.

+FPTS:n Receive page transfer status response; refer to +FPTS=n

command.

+FTSI:"string" Report remote ID response TSI.

+FVOICE Transition to Voice response.

Class 2 Flow Control

Flow control is necessary to match the DTE-DCE data rate to the line-signaling rate while transmitting or receiving Group 3 (T.4) data. In Class 2 fax mode, both hardware (RTS/CTS) and software (XON/XOFF) flow control are enabled.

4.2.3 Service Class 2.0 Commands

Table 4-11 Service Class 2.0 Commands

COMMAND DESCRIPTION VALUE

ATD Dial and originate a call

ATA Answer a call

+FDT Transmit phase C data command: releases

the DCE to proceed with the negotiation.

+FDR Receive phase C data command: initiates

document reception.

+FKS Terminate a Session, orderly fax abort.

+FIP Initialize Service Class 2.0 Parameters.

+FCLASS=n Service Class Identification and Control n=0,1,2.0,8;refer to the +FCLASS

+FMI? Identify DCE Manufacturer ZyXEL

+FMM? Identify DCE Omni 56K Plus

+FMR? Identify DCE Revision Vx.x

+FCC=vr,br,wd,ln,df,ec,bf,st

Establish DCE Capabilities

Vertical Resolution vr=0:Normal;98 lpi

Bit Rate br=0:2400 bps

Class 1 command

vr=1:Fine;196 lpi

br=1:4800 bps

br=2:7200 bps

br=3:9600 bps

br=4:12000 bps

br=5:14400 bps

Command Sets 4-13

Omni 56K Plus Series User’s Guide

Table 4-11 Service Class 2.0 Commands

COMMAND DESCRIPTION VALUE

Minimum Scan Time/Line st=0:0 ms

+FIS=vr,br,wd,ln,df,ec,bf,st Current Session negotiating parameters The same as above

+FCS=vr,br,wd,ln,df,ec,bf,st Current Session Parameters The same as above

+FLI=”string” Local Facsimile station ID String, TSI/CSI

+FPI=”string” Local Facsimile station ID String, CIG

+FLP=n Indicate Document available for polling n=0:No document

+FSP=n Enable/Disable polling n=0:Disable

+FNR=rpr,tpr,idr,nsr Negotiation Reporting Enable rpr= 0:Receiver parameters are

Page Width wd=0:1728 pixels in 215mm

wd=1:2048 pixels in 255mm

wd=2:2432 pixels in 303mm

Page Length ln=0:A4;297mm

ln=1:B4;364mm

ln=2:unlimited length

Data Compression Format df=0:1-D

df=1:2-D

Error Correction ec=0:Disable

Binary File Transfer bf=0:Disable

st=1:5 ms

st=2:10 ms (normal); 5 ms (fine)

st=3:10 ms

st=4:20 ms (normal); 10 ms (fine)

st=5:20 ms

st=6:40 ms (normal);20 ms (fine)

st=7:40 ms

n=1:A document is available

n=1:Enable

not reported.

rpr=1:Receiver parameters are

reported.

tpr= 0:Transmitter parameters are

not reported.

tpr=1:Transmitter parameters are

reported.

idr= 0: ID Strings are not reported.

idr=1: ID Strings are reported.

nsr= 0:Non-standard frames are

not reported.

4-14 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-11 Service Class 2.0 Commands

COMMAND DESCRIPTION VALUE

nsr= 1:Non-standard frames are reported.

+FIE=n Procedure Interrupt parameter n=0:Disable

n=1:Enable

+FPS=n Page Transfer Status n=1:Received page is good.

n=2:Page is bad; retrain is requested.

n=3:Page is good; retrain is requested.

n=4:Page is bad; procedure interrupt is requested.

n=5:Page is good; procedure interrupt is requested.

+FLO=n Flow Control Select n=0:No flow control

n=1:Sets XON/ XOFF software flow control

n=2:Sets CTS/RTS hardware flow control

+FPR=n Serial Port Rate Control n=0:Automatic DTE rate detection

by the DCE

n>0:Serial rate is fixed at the value multiplied by 2400 bps.

+FBO=n Phase C Data Bit Order n=0:Selects direct bit order

n=1:Selects reversed bit order

+FEA=n Phase C Received EOL alignment n=0:EOL patterns are as received

+FCR=n Capability to Receive n=0:Not receive message data or

poll a remote device.

n=1: Receives message data or poll a remote device.

+FCQ=<rq>,<tq> Copy Quality disable/enable rq= 0:Receive copy quality check

is disable.

rq=1:Receive copy quality check is enable.

tq= 0:Transmit copy quality check is disable.

tq=1:Transmit copy quality check is enable.

+FRQ=pql,cbl Receive Quality Thresholds pgl= 0-64h:Specifies the

percentage of good lines

cbl= 0-ffh:Specifies the maximum tolerable number of consecutive bad lines.

Command Sets 4-15

Omni 56K Plus Series User’s Guide

Table 4-11 Service Class 2.0 Commands

COMMAND DESCRIPTION VALUE

+FAA=n Adaptive Answer Mode n=0:Answers as set by +FCLASS

n=1:Answers and auto-

determines the call type.

+FCT=n Phase C Timeout n=0-ffh,1 sec units

+FMS=n Minimum Phase C Speed n=0:2400 bps

n=1:4800 bps

n=2:7200 bps

n=3:9600 bps

n=4:12000 bps

n=5:14400 bps

+FBS? Buffer Size 512,256

4.3 Voice AT Commands

Table 4-12 Voice AT Commands

COMMAND FUNCTION OPTION DEFAULT DESCRIPTION

+FLO Flow control

select.

+VIP Initialize

parameters.

+FCLASS Voice/data/fax

selection

+FMI? Manufacturer

ID.

+FMM? Model ID N/A Omni 56K

+FMR? Revision N/A Vx.xx

+VRX Voice

recording

0,1,2 2 0: NO flow control.

1: (XON/XOFF) Software flow control.

2: (RTS/CTS) Hardware flow control.

N/A N/A +VSD=15,70 (15*4, 7 second)

+VTD=100 (1 second)

+VRN=10 (10 second)

+VRA=70 (7 second)

+VGR=0 (Enable AGC)

+VGT=128

+FLO=2 (RTS/CTS)

+VIT=70 (7 second)

0,1,2.0,8 0 0: DATA.

1: CLASS 1 FAX.

2.0: CLASS 2.0 FAX.

8: VOICE.

N/A ZyXEL

N/A N/A Start recording.

4-16 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-12 Voice AT Commands

COMMAND FUNCTION OPTION DEFAULT DESCRIPTION

+VGR Set the gain

for the received voice sample.

+VGT Set the gain

for the transmitted voice sample.

+VLS Select a voice

I/O device.

+VRA Ring back

goes away timer

+VRN Ring back

never come timer

+VTX Voice transmit

mode

+VSD Silence

detection

+VSM Selection of

compression method

+VTS= [x,y,z]

+VTS= {x,y}

Dual Tone Generation

DTMF Tone Generation

0 0 0: Automatic gain control(AGC)

0-255 128 0: Silence

1-255: The larger the value, the louder the voice will be.

0,1, 2 0 0: The DCE is on hook. Local phone

connected to Telco line.

1: The DCE is on-hook and is connected to the local phone. The local phone is also provided with power. The modem can record/play through the local phone set.

2: The DCE is off-hook and is connected to the Telephone line. The local phone is provided with power. The modem can record/play through the local telephone line.

0 – 255 70 0: turn off the timer

1-255: Defines the period without ringback (after at lease one ringback has been detected) in 100 -ms units.

0 – 255 10 0: turn off the timer

1-255: Defines the period without ringback after dialing in 1 sec unit.

NA NA Switches to voice transmit mode.

Threshold,

Period (0-255), (0-255)

4;ZyXEL ADPCM; 4 Bit;(9600)

x: 0-3000 Hz

y: 0-3000 Hz

z: 0- 1000(10ms)

x:0-9,*,#, A-D

y:0-1000 (10ms)

15,70 Threshold:

0: Disable silence detection.

1-255: The smaller the value, the more sensitive to the silence detection it will be.

Period:

1-255: The required period of silence detection before DCE reporting the silence event.

0: Disable silence detection.

Unit: 0.1 second

4,9600 IMA 4 bit ADPCM.

Sample rate: 9600

NA x: first tone frequency

y: second tone frequency

z: duration in 10ms unit

NA x: DTMF digits (0-9,*,#, A,B,C,D)

y: duration in 10ms unit

Command Sets 4-17

Omni 56K Plus Series User’s Guide

Table 4-12 Voice AT Commands

COMMAND FUNCTION OPTION DEFAULT DESCRIPTION

+VTS= x,x…

+VTD Set default

+VIT Inactivity

DTMF Tone Generation

duration of DTMF tone.

timer.

x:0-9,*,#, A-D

1-255 100 Unit: 0.01 second.

0-255 70 Unit: 0.1 second.

NA x: DTMF digits (0-9,*,#, A,B,C,D)

Duration:+VTD setting. (in 10ms unit)

4.4 Voice Shielded DTE Commands

Table 4-13 Voice Shielded DTE Commands

COMMAND DESCRIPTION

<DLE>p Pause, suspend voice data to the output device in playback state.

<DLE>r Resume, resume suspended voice data in playback state.

<DLE><ETX> Terminate voice playback state, switch to online voice command mode after completing

remaining data in buffer.

4.5 Voice Shielded DTE Responses

Table 4-14 Voice Shielded DTE Responses

RESPONSE CODE DESCRIPTION

<DLE>0 - <DLE>9

<DLE>*, <DLE>#

<DLE>A-<DLE>D

<DLE>a Answer Tone detected

<DLE>b Busy detected

<DLE>c Calling Tone detected

<DLE>d Dial tone detected

<DLE>e European Data Modem Calling Tone detected

<DLE>f Bell Answer Tone detected

<DLE>h The local handset on hook

<DLE>q Quiet detected

<DLE>s Silence detected

<DLE>H The local handset on hook

<DLE>u Transmission Under run in playback state

<DLE><ETX> End of stream

DTMF digit detected

4-18 Command Sets

Omni 56K Plus Series User’s Guide

4.6 S-Register Descriptions

In most bit-mapped S-registers, the default bit value is 0. Non-0 default values are followed by an asterisk. In some cases, default values are shown in the reference column preceded by +. Some bits are reserved for factory use and should not be changed.

 S-Register default values may vary depending on the country.

Table 4-15 Basic S-Registers "ATSn=x"

COMMAND FUNCTION & DESCRIPTION +REF.

S0= Sets the number of rings on which the modem will answer. 0 value disables

auto-answer.

S1= Counts and stores number of rings from an incoming call. +000

+000

S2= Defines escape code character, default ‘+’ (43 dec.). A value of 128-255

disables the escape code.

S3= Defines ASCII Carriage Return. +013

S4= Defines ASCII Line Feed. +010

S5= Defines ASCII Backspace. A value of 128-255 disables the Backspace key’s

delete function.

S6= Sets the number of seconds the modem waits before dialing if ‘X0’ or ‘X1’ is

selected. If a setting of ‘X2,’ ‘X7’ is selected, the modem will dial as soon as it detects a dial tone. This register also sets the time-out interval for the “W” dial modifier to wait for the dial tone. (See also S41b4)

S7= Sets duration, in number of seconds modem waits for a carrier. +060

S8= Sets duration, in seconds, for pause (,) option in Dial command and pause

between command re-executions for Repeat (>) command.

S9= Sets duration, in tenths of a second of remote carrier signal before recognition.

(Ignored if in non-FSK or half-duplex operation)

S10= Sets duration, in tenths of a second, modem waits after loss of carrier before

hanging up.

S11= Sets duration and spacing, in milliseconds, of dialed Touch-Tones. +070

+043

+008

+003

+002

+006

+007

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

S13= bit dec hex Bit-mapped register. +000

1 2 2 Capture modem manufacturer information during V.42

handshake, can be displayed at ATI2 <Last Speed/Protocol> line if available (‘Flash’ or ‘ ZyXEL’ stands for ZyXEL connection)

S14= bit dec hex Bit-mapped register: +002

1 0 0 Grant Remote Digital Loop-back test request. &T4

2 2 Deny Remote Digital Loop-back test request. (Default) &T5*

S15= bit dec hex Bit-mapped register. +066

Command Sets 4-19

Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

0,1 0 0 Even parity

1 1 Odd parity

2 2 No parity *

2 0 0 1 stop bit *

4 4 2 stop bits

4,3 0 0 10 bit character length *C0*

8 8 11 bit character length *C1

16 10 9 bit character length *C2

24 18 8 bit character length *C3

7-5 0 0 Profile 0 as active settings after power on. Z0

32 20 Profile 1 as active settings after power on. Z1

64 40 Profile 2 as active settings after power on. Z2

96 60 Profile 3 as active settings after power on Z3

128 80 Factory default as active settings after power on Z4*

S16= dec hex Test status register. +000

0 0 No test in progress. &T0

1 1 Analog Loop-back test in progress. &T1

3 3 Local Digital Loop-back test in process. &T3

6 6 Remote Digital Loop-back test in process. &T6

7 7 Remote Digital Loop-back with self-test in process. &T7

8 8 Analog Loop back with self-test in progress. &T8

S17= bit dec hex Bit-mapped register. +022

4-1 0-30 0-1E Set transmit power level from 0 to -15 dBm. (See also

S35b3) (Default *P11)

5 0 0 Normal dial. (Default) D

32 20 Reverse dial, go on-line in answer mode. DR

7, 6 0 0 AT Commands set *I0*

64 40 V.25bis command set *I1

128 80 Dumb mode (no command accepted) *I2

S18= dec hex Force modem to fix baud rate when answering. +000

0 0 Disable fixed baud function. *

1-46 1-2E Enable baud rate to be fixed when answering. Baud

rate value settings (n) the same as S20

S19= dec hex +000/&Nn

0-99 0-63

S20= dec hex DTE speed (bps). Auto detected from AT Command. +001

Modem connection mode, same

Setting value as 'AT&Nn' command.

*Pn

4-20 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

0 0 230400 bps

1 1 115200 bps (Default) *

2 2 76800 bps

3 3 57600 bps

4 4 38400 bps

5 5 19200 bps

6 6 16800 bps

7 7 14400 bps

8 8 12000 bps

9 9 9600 bps

10 A 7200 bps

11 B 4800 bps

12 C 2400 bps

13 D 1200 bps

14 E 460800 bps

15 F 300 bps

16 10 307200 bps

17 11 153600 bps

18 12 102400 bps

20 14 61440 bps

21 15 51200 bps

22 16 624000 bps

24 18 124800 bps

25 19 62400 bps

26 1A 41600 bps

27 1B 31200 bps

28 1C 24960 bps

29 1D 20800 bps

46 2E 921600 bps

Note: Only the speeds up to S20=15 are supported by auto speed detection.

S21= bit dec hex Bit mapped register. +178

0 0 0 Maintain a non-error control connection when modem

error control handshake fails.

1 1 Drop connection when modem error control handshake

fails. (Default)

1-2 0 0 Speaker is always OFF. M0

*E0*

*E1

Command Sets 4-21

Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

2 2 Speaker is ON until carrier is detected. (Default) M1*

4 4 Speaker is always ON. M2

6 6 Speaker is ON after last digit is dialed out until carrier

detected.

3 0 0 DSR is always ON. (Default) &S0*

8 8 According to CCITT. (see also S44.4, S41.5) &S1

4 0 0 CD is always ON. &C0

16 10 CD tracks presence of data carrier. (see also S38.3)

(Default)

6-7 0 0 Assume DTR always On. &D0

64 40 108.1, DTR OFF-ON transition causes dial of the

default number.

128 80 108.2 Data Terminal Ready, DTR OFF causes the

modem to hang up and return to command state. (Default)

192 C0 108.2+RST, DTR OFF causes the modem to hang up

and reset the modem to profile 0 after DTR dropped.

S23= bit dec hex Bit mapped register. +105

0 0 0 Command echo disabled. E0

1 1 Command echo enabled. (Default) E1*

1 0 0 Tone dial. (Default) T*

2 2 Pulse dial. P

2 0 0 Pulse dial make/break ratio = 39% / 61% (Default) &P0*

4 4 Pulse dial make/break ratio = 33% / 67% &P1

3-5 0 0 ATX0 (See result code table) X0

8 8 ATX1 X1

16 10 ATX2 X2

24 18 ATX3 X3

32 20 ATX4 X4

40 28 ATX5, error control result code is enabled. (Default) X5*

48 30 ATX6, error control result code is enabled. X6

56 38 ATX7, error control result code is enabled. X7

6 0 0 Display result code in numeric format. (see S35.7) V0

64 40 Display result code in verbose format. (Default) V1*

7 0 0 Modem returns result code. (Default) Q0*

128 80 Modem does not return result code. (see also S40.1) Q1

S24= bit dec hex Bit mapped register.

M3

&C1*

&D1

&D2*

&D3

4-22 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

6-4 16-

112

S25= 0-255 0-FF Specify the time delay that DTR signal needs to be OFF

S27= bit dec hex Bit mapped register. +156

0-2 Modem error control.

0 0 No error control. &K0

1 1 MNP4 + MNP3 (see also S41.0) &K1

2 2 MNP4 + MNP5 (see also S38.5, S41.0) &K2

3 3 V.42+MNP4 &K3

4 4 V.42 + V.42bis (compatible with &K2) (Default) &K4*

5 5 V.44 &K5

3-5 0 0 Flow control disabled. &H0

24 18 Hardware (RTS/CTS) flow control. (Default) &H3*

32 20 Software (XON/XOFF) flow control. &H4

40 28 Reserved. &H5

6-7 Signal quality.

0 0 No response to poor signal quality. *Q0

64 40 Retrain action taken if signal quality is poor. *Q1

128 80 Adaptive rate (auto fall-back /forward) when signal

192 C0 Disconnect when signal quality is poor. *Q3

S28= bit dec hex Bit mapped register. +068

0 0 0* Single line RJ-11 phone jack (Default) &J0*

1 1 Multiple phone/modem line, RJ12/RJ13 phone jack &J1

1 0 0* Panel key is normal (Default) *L0*

2 2 Panel key is locked *L1

2-3 0 0 Destructive, expedited break. &Y0

1 4 Non-destructive, expedited break. (Default) &Y1*

10 8 Non-destructive, un-expedited break. &Y2

4-5 0 0 No guard tone. (Default) &G0*

16 10 Reserved &G1

32 20 1800 Hz guard tone. &G2

6 0 0 DTE/DCE rate follows link rate. (See also S18, S44b6) &B0

64 40 DTE/DCE rate is fixed at the DTE setting, range from

10-70 Speaker volume control, increments of 32 in decimal

value.

before it will be recognized, in 10 ms units. If S25=0, the delay time is set to 4 ms.

quality changes. (Defaults)

300-460.8 Kbps. (Default, also see S18, S44b6)

L0-7

+000

*Q2* S41.2

&B1*

Command Sets 4-23

Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

7 0 0 Select V.22 for 1200 bps communication B0*

128 80 Select Bell 212A for 1200 bps communication B1

S29= 0-49 0-31 Set default dial phone number pointer, use AT&Zn=s to

store phone numbers in EEPROM.

S31= 0-255 0-FF Holds the ASCII decimal value of the XON . +017

S32= 0-255 0-FF Holds the ASCII decimal value of the XOFF. +019

S35= bit dec hex Bit mapped register. +032

1 2 2 Disable aborting from terminal during modem

handshaking.

3 8 8 Add 16dB attenuation to the leased line transmission

power.

5 32 20 Enable Selective Reject in V.42. (Default) *

7 128 80 Enable extended numerical result codes from 50-65

when an error corrected connection is made. Use with ATV0. (see result code table)

S38= bit Dec hex Bit mapped register. +000

0 1 1 Repeatedly dialing default number if not connected. *Dn, S29

3 0 0 CD tracks the carrier. (Default) &C0

3 8 8 DCD ON/OFF sequence follows UNIX standard, DCD

ON before connect message is sent, DCD off after last DCE response is sent.

4 16 10 Auto-mode fax receiving disabled, hang up if a fax call

is received.

5 32 20 Disable MNP5 negotiation. &Kn

S39= bit dec hex Bit mapped register. +032

2 4 4 Reverse the answers. Answer in originating mode. ATA

3 8 8 Class 2 Fax Bitfax compatibility:

+FCON at 2400; next phase at 19200

4 16 10 Class 2 Fax mode DTE shifting:

+FCON at current DTE rate, shift to 19,200 when entering into the next phase

5 32 20 Disable srambler/descrambler in V.26bis mode.

Enables compatibility with older V.26bis modems which have no such unit (Default)

S40= bit dec hex Bit mapped register. +000

1 2 2 No result code is displayed in answer mode. Q2

2 4 4 Enables caller ID detection.

3 8 8 Enables type 1 ring detection.

4 16 10 Enables type 2 ring detection.

5 32 20 Enables type 3 ring detection.

+000 *D

V0 S23.6

&C1, S21.4

&N0

*

4-24 Command Sets

Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

6 64 40 Enables type 4 ring detection.

S41= bit dec hex Bit mapped register. +000

0 1 1 Special MNP compatibility. (see also S27.0, S38.5) &Kn

3 8 8 Enable CCITT signals 140 and 141 on EIA-232D

interface.

4 16 10 In X2-X7 setting, modem waits for S6 seconds before

dialing and ignores dial tone detection.

5 32 20 DSR follows DCD and pulses for 0.5 sec after DCD on-

off transition.

6 64 40 Force S0>=2; doesn‘t answer on the first ring. S0

7 128 80 Ignore calling tone, not to be used as fax detection.

S42= bit dec hex Bit mapped register. +000

1 2 2 Enables throughput averaging.

2 4 4 CND message will be forced on even if ATQ2 is set.

3 8 8 Disable escape sequence code in answer mode.

4 16 10 Disable V.17 14,400 Fax in calling mode, no effect to

answering mod.

5 32 20 Disable Data/Voice button switch.

6 64 40 Disable ‘RINGING’ result code. Xn

7 128 80 DCD forced on but pulse off for 0.5 seconds at carrier

loss.

S43= bit dec hex Bit mapped register. +008

6 64 40 Enable 1.5 sec, pause between off-hook and modem

answering.

7 128 80 Modem hang-up if the line condition does not permit

modem to run at the highest speed set by ‘&Nn’ command.

S44= bit dec hex Bit mapped register. +000

3 8 8 ATDSn initiates auto-dial of the stored numbers

consecutively until connection is made (cyclic dial).

4 16 10 DSR follows DTR. (See also S41.5) &S1

6 64 40 When selected with ‘&B0’, DTE speed fixed at 38400

when the link speed is above 9600. DTE speed fixed at 9600 if link speed is 7200. If it is below 7200, DTE speed follows link speed. When selected with &B1, DTE speed fixed at current rate when an ARQ connection is made, when a non-ARQ connection is made, DTE speed follows the link speed. (See also S18)

7 128 80 Enable UK (Australian, Singapore, Indian, etc.,) type

“short-short ring” ring-back detection.

S45= dec

0-255

hex 0-FF

Delay during which the CND silence detection is disabled, in 20 ms units. (See also S46)

&Sn

&C0

DSn

&Bn

+100

Command Sets 4-25

Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND BIT DEC HEX FUNCTION AND DESCRIPTION REF.

S46= dec hex CND silence detection interval. +028

0-255 0-FF To process the CND, silence must be detected for the

specified interval, in 20 ms units.

S48= bit dec hex Bit-mapped register. +000

0 1 1 Cause CND information to be reported in raw format.

2 4 4 Enable data calling tone (CNG) sending.

3 8 8 Reverse the V.23 channel speed. Originate mode

modem speed (Send/Receive) 1200/75; Answer mode modem speed (Send/Receive) 75/1200.

4 16 10 (Work with &D1 command) DTR ON will have the

modem dial the default number and DTR OFF will have the modem hang-up and reset to profile 0. When the modem is idle (waiting for command), it will not dial any number when DTR changes from ON to OFF.

S49= bit dec hex Bit-mapped register +006

7 0 0 For cellular mode only. Modem is installed in office

(Default)

128 80 For cellular mode only. Modem is connected to a mobile

phone

S52= bit dec hex Bit-mapped register. +000

7 0 0 Select ‘Mark’ as the first signal of the V.23 handshaking

sequence. (Default)

128 80 Select ‘Space’ as the first signal of the V.23

handshaking sequence.

S56= dec hex +000

0-255 0-FF Hook flash detect time, in units of 10ms. A value of zero

use country-specific default duration.

S57= bit dec hex Bit-mapped register. +016

4 16 10 Enables the reporting of Class 1 capability in the

response to +FCLASS=?

6 0 0 Disabled busy detection when dialing is proceeding

(Default)

64 40 Enables busy detection in dialing period

&N12

*

&N12

Bit

dec

hex

+nnn

Note:

S-register bit number, 'b', used in 'ATSr.b=n' and 'ATSr.b=?'

Decimal value, 'x', used in 'ATSn=x'

Equivalent Hexadecimal value.

Factory default when listed in 'Reference' column.

'AT' is omitted when an AT command is referred to in the 'Reference' column.

4-26 Command Sets

Omni 56K Plus Series User’s Guide

Chapter 5

Firmware Upgrade

You can upgrade modem firmware either by using the software utility provided in the CD-ROM that comes with your modem package, or by terminal emulation program such as Bitware or Hyperterminal. To obtain the latest firmware version, please go to ZyXEL's website site at

http://www.zyxel.com

5.1 Upgrading by Utility

To upgrade the firmware by using the software utility on the included CD, follow the steps listed below:

1. Insert the CD-ROM that comes with your modem package into your CD-ROM driver.

2. Double-click on the Zyfwm.exe icon, as shown below, in your CD-ROM.

.

3. You will see the first screen of ZyXEL F/W upload wizard as shown below. Select the COM port

that is connected to your modem, then click Next.

4. Click Browse to find the directory that your latest firmware file is located, then click Next to start

uploading.

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Omni 56K Plus Series User’s Guide

5. Follow the upload wizard to complete upgrade process. After finishing, you may use your modem

again.

5.2 Upgrading by Terminal Emulation Program

To upgrade modem firmware by terminal emulation program, you need a terminal emulation program first, such as Bitware or Hyperterminal (Windows). For more information on how to install Bitware on your computer, please refer to the Quick Start Guide that comes with your modem package.

5.2.1 Upgrading Using Bitware Example

1. Turn on your computer and connect your modem to the computer. For the Omni 56K COM Plus,

you also need to connect the modem to a power supply and push in the power button to turn on the modem.

2. Start your Bitware program.

3. The BitWare tool bar appears. Click the BitCom icon.

4. In the BitCom for Windows screen, click Settings then System to open the System Settings

screen shown next. Select the COM port to which the modem is connected. Click OK to continue.

(To see which COM port the modem is attached, click Start, select Settings to enter Control

Panel. Double-click on the Phone and Modem Options icon (or the Modems icon) and click the Modems tab (and the Properties button).)

5-2 Firmware Upgrade

Omni 56K Plus Series User’s Guide

5. Type in atupx it will show a message in the next screen.

Firmware Upgrade 5-3

Omni 56K Plus Series User’s Guide

6. Be sure you have the new firmware file on hand, then enter Y. The terminal will response as shown

next. Remember that you must decompress compressed (.zip) files before you can upload them.

7. Click the Send icon to display the Send file – Select Protocol screen. Select Xmodem and click

Settings…. Select XModem Checksum and click OK to go back to the Send file – Select Protocol screen. Click OK to display the Send file screen.

8. Select the firmware file’s location in the Directories box and click the file name in the Files box to

select it. Then click Send.

5-4 Firmware Upgrade

Omni 56K Plus Series User’s Guide

9. After the firmware upload process has completed, you can use the modem again.

5.2.2 Upgrading Using HyperTerminal Example

1. Open the HyperTerminal program in Windows. For example, in Windows 2000 click Start,

Programs, Accessories, Communications, HyperTerminal.

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Omni 56K Plus Series User’s Guide

2. Enter a descriptive name and select an icon in the Connection Description screen. Click OK to

display the Connect to screen.

3. Select the COM port to which the modem is connected. Click OK to continue.

4. In the COM Properties screen, click OK after configuring the following parameters:

 VT100 terminal emulation.

 19200 Baud. (Default)

 No parity, 8 data bits, 1 stop bit, flow control set to none.

5-6 Firmware Upgrade

Omni 56K Plus Series User’s Guide

5. Type in atupx it will show a message in the next screen.

Firmware Upgrade 5-7

Omni 56K Plus Series User’s Guide

6. Be sure you have the new firmware file on hand, then enter Y. The terminal will response as shown

next. Remember that you must decompress compressed (.zip) files before you can upload them.

7. Click Transfer, then Send File to display the Send File screen.

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Omni 56K Plus Series User’s Guide

8. Choose the Xmodem protocol. Type the firmware file’s location, or click Browse to search for it.

Then click Send.

9. After the firmware upload process has completed, you can use the modem again.

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Omni 56K Plus Series User’s Guide

5-10 Firmware Upgrade

Omni 56K Plus Series User’s Guide

Index

4

4-bit Voice Data Compression ................... 2-10

B

Basic AT Command Sets.............................. 4-1

C

Caller ID ...............................................2-6, 4-8

Caller Number Delivery .............................. 2-6

Capability..................................................... 2-3

Command Sets ............................................. 4-1

Copyright ........................................................ii

Customer Support ........................................... v

Cyclic Dial ................................................... 2-6

D

Data command sets ......................................4-1

Data Compression........................................ 2-6

Data Function............................................... 2-4

Disclaimer....................................................... ii

Distinctive Ring........................................... 2-8

E

e.g. ..............................See Syntax Conventions

Echo feature................................................. 4-2

EIA Class 1/Class 2.0 Command Set......... 2-10

Enter............................See Syntax Conventions

Error Control................................................ 2-5

Extended AT# Command Sets .....................4-8

Extended AT& Command Sets ....................4-3

Extended AT* Command Sets .....................4-6

F

Fax command sets........................................ 4-8

Fax function............................................... 2-10

Fax Physical Layer Protocol...................... 2-10

FCC................................................................ iii

Firmware Specification................................ 2-1

Flash EPROM.............................................. 4-3

Flow Control................................................ 2-5

H

Hardware CTS/RTS Flow Control...............2-5

Hardware Specification ...............................2-1

I

i.e................................ See Syntax Conventions

Internet Security Appliance..........................viii

ITU-T T.30 Fax Protocol............................2-10

K

Key Features ................................................1-1

N

Notice.............................................................iii

O

Online Registration ........................................iv

P

Packing List Card.........................................viii

Physical Layer Capability ............................2-4

Protocol Support ..........................................2-2

R

Related Documentation................................viii

Repairs ...........................................................iv

Repeat Dial...................................................2-6

Replacement................................................... iv

Result Codes ...................................... 3-1, 4-19

Return Material Authorization Number .........iv

S

Security Function .........................................2-8

Select.......................... See Syntax Conventions

Service............................................................iv

Service Class 1 Commands..........................4-8

Service Class 2.0 Commands.....................4-13

Software XON/XOFF Flow Control............2-5

S-Register........................................... 4-3, 4-19

Support Disk ................................................viii

Syntax Conventions .....................................viii

T

Trademarks......................................................ii

V

V.25bis........................................................4-21

Index i

Omni 56K Plus Series User’s Guide

Voice AT Commands..................................4-16

Voice Function ...........................................2-10

Voice IS-101 Command Set .......................2-10

Voice Shield DTE Commands ...................4-18

Voice Shield DTE Responses.....................4-18

W

www.zyxel.com..............................................iv

Z

ZyXEL Limited Warranty

Note ............................................................iv

ZyXEL website...............................................iv

ii Index

ZyXEL Communications 56K Plus User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Omni 56K Plus Series

Copyright

ZyXEL Limited Warranty

Customer Support

Table of Contents

List of Tables

Preface

Introduction

1.1 ZyXEL Omni 56K Plus modem Overview

Result Codes

Command Sets

4.2 Fax command sets

4.4 Voice Shielded DTE Commands

4.5 Voice Shielded DTE Responses

Firmware Upgrade

5.1 Upgrading by Utility

5.2 Upgrading by Terminal Emulation Program

Index