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Lucent Technologies Host-Based Controller Modem AT 25ter AT Commands, Modem Identification +GMM?

Models: Host-Based Controller Modem AT

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Host-Based Controller Modem

Data Addendum

AT Command Set

June 15,

1998

 

 

 

V.25ter AT Commands

The +GMx commands are required by the Microsoft PC98 specifications.

Manufacturer Identification (+GMI?)

Read Syntax: AT+GMI?

Result: Lucent Data/Fax

Lucent Data/Fax/Voice/VoiceView (depending on product)

Version / Revision Information (+GMR?)

Read Syntax: AT+GMR?

Result:

Lucent driver version number (e.g. 1.5.05)

Modem Identification (+GMM?)

Read Syntax: AT+GMM?

Result:

H.324 video-ready rev. 1.0

The chip set supports the following functionalities of the V.25ter for a H.324 call.

✟The modified function of the ATD command when issued while the analog voice connection is established. This command will not cause the DTMF dialing and tone detection associated with the usual ATD # command.

✟The following AT commands, sub-parameters and values are supported

Table 8. V.25ter AT Commands

Command

Sub-

Values

Description

 

parameter

 

 

AT+A8E=<v8o>,

v8o

1 The default value disables the CI option

Defined for two conditions: as a

<v8a>,<v8cf>

 

while in V.8 origination negotiation.

parameter to configure

 

 

However, the modem, when initiating the

V.8originating and answering

 

 

call as a data call, detects ANSam and is

operation while the DCE is on-

 

 

capable of starting in V.34 mode).

hook. It initiates an action if the

 

 

6 Enables DCE control of V.8 and CI

DCE is off-hook. If enabled, V.8

 

 

option.

negotiation does not preclude

 

 

simultaneous implementation of

 

 

 

 

 

 

other negotiation means like

 

 

 

V.8bis, V.18, V.32bis.

 

v8a

1 The default value disables the CI option

 

 

 

while in V.8 negotiation. However, the

 

 

 

modem, when answering a call, sends the

 

 

 

ANSam and is capable of starting in V.34

 

 

 

mode)

 

 

 

5 Enables DCE control of V.8 and CI

 

 

 

option.

 

 

v8cf

21h Call function for H.324 calls

 

 

 

c1h Call function for DSVD calls

 

AT+A8E?

 

 

Report current values of sub-

 

 

 

parameters

AT+A8E=?

 

 

Report supported ranges of values

 

 

 

 

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Version 1.0

Lucent Technologies Inc.

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Lucent Technologies Host-Based Controller Modem AT specifications 25ter AT Commands, Manufacturer Identification +GMI?
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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.