Data Addendum

June 15, 1998

Version 1.1

Host-Based Controller Modem AT Command Set

Contents

Page

AT Command Summary

2

AT Commands Reference

6

Test and Debug AT Commands

24

AT Commands Reference S-Registers

29

AT FAX Command Set (Class 1 FAX)

36

AT FAX Commands Reference

37

AT Voice Command Set

42

AT Voice Commands Reference

43

AT COMMANDS: SPEAKERPHONE OPERATION

45

AT COMMANDS: TELEPHONE ANSWERING DEVICE...

45

AT VOICE COMMAND SET NOT DEFINED IN IS-101

 

SPECIFICATIONS

48

VOICE MODEM COMMAND EXAMPLES

49

AT DSVD Commands

56

V.25ter AT Commands

57

V.80 AT Commands

59

AT Commands for Homologation Testing and

 

Debugging

61

CONFIGURING FOR DIFFERENT COUNTRIES

63

COUNTRY SPECIFIC HOMOLOGATION PARAMETERS .69

COUNTRY SPECIFIC S REGISTER DEFAULTS

84

CHANGING THE DTMF DIAL SPEED DEFAULT VALUE 86

Introduction

This document specifies the Lucent Technologies MTC AT Command Set for the host-based controller modem products. Note that if a particular modem board does not support a feature (such as voice), then the corresponding commands are disabled for that modem.

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Lucent Technologies Host-Based Controller Modem AT specifications Contents, Introduction

Host-Based Controller Modem AT specifications

Lucent Technologies Host-Based Controller Modem AT represents a significant advancement in modem technology, particularly in the realm of telecommunications and data transmission. This modem, renowned for its efficiency and versatility, is characterized by a host-based architecture, which differentiates it from traditional modems that rely heavily on dedicated hardware.

One of the main features of the Lucent Technologies Host-Based Controller Modem AT is its ability to leverage the processing power of the host computer. By utilizing the host's CPU for data encoding and decoding tasks, the modem can reduce the need for specialized hardware components, allowing for a more cost-effective solution. This design not only facilitates lower manufacturing costs but also enhances the overall performance due to the utilization of the host's computational capabilities.

Another notable characteristic is its compliance with the AT command set, which standardizes communications between the modem and the host system. This ensures compatibility with a wide range of software applications and operating systems. The AT command set allows users to control modem functions easily, making it simpler to configure settings, initiate connections, and manage data transfer processes.

The modem also supports various communication protocols, such as V.90 and V.92, enabling high-speed data transmission over traditional telephone lines. With download speeds of up to 56 Kbps and upload speeds of up to 48 Kbps, the Lucent Technologies Host-Based Controller Modem AT is particularly suitable for Internet browsing, email, and other online activities demanding robust data throughput.

Additionally, the modem features built-in error correction and data compression protocols, such as V.42 and V.44, further enhancing the quality and speed of data transmission. These protocols help minimize the impact of line noise and ensure efficient use of bandwidth, leading to improved connection stability and data integrity.

In terms of connectivity, the Lucent Technologies Host-Based Controller Modem AT typically interfaces via a standard serial or USB port, making it compatible with most modern computers. Its compact design and ease of installation make it an appealing choice for both personal and professional use.

Overall, the Lucent Technologies Host-Based Controller Modem AT showcases significant innovation in modem technology, offering users a reliable and efficient solution for high-speed data communications. Its host-based architecture, adherence to the AT command set, and support for advanced communication protocols position it as a vital tool in the ever-evolving landscape of digital connectivity.