Lucent Technologies Host-Based Controller Modem AT AT Voice Command Set, Voice Commands

Models: Host-Based Controller Modem AT

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Host-Based Controller Modem

Data Addendum

AT Command Set

June 15, 1998

 

 

AT Voice Command Set

The AT Voice Command set follows a modified IS-101 architecture. The commands are sent through the comm port, but the data path is sent either through the comm port or through a DMA channel using the wave driver. Tables 1 and 2 show a summary of the AT Voice Command Set.

Summary of the AT Voice Command Set

 

 

Table 6. The AT Voice Command Set

 

 

 

 

 

 

 

Voice Commands

 

 

 

 

 

Command

 

Description

 

 

 

 

 

AT+FCLASS=8

 

Enter voice mode

 

AT+VIP

 

Initialize voice parameters

 

 

 

 

 

AT+VCID

 

Caller ID

 

 

 

 

 

AT+VDR

 

Distinctive ring

 

 

 

 

 

AT+VGT

 

Speaker volume control

 

AT+VIT

 

DTE/DCE inactivity timer

 

 

 

 

 

AT+VNH

 

Automatic hang-up control

 

AT+VTD

 

Set beep tone duration timer

 

 

 

 

 

AT+VLS

 

Analog source/destination selection and DTMF/tone reporting

 

 

 

 

 

AT+VSD

 

Set silence detection timer

 

AT+VRA

 

Set ringback goes away timer

 

 

 

 

 

AT+VRN

 

Set ringback never came timer

 

 

 

 

 

AT+VTS

 

DTMF/tone generation

 

 

 

 

 

AT+VTR

 

Start full duplex voice transmission and reception process

 

AT+VTX

 

Enter voice transmit state (see examples)

 

 

 

 

 

AT+VRX

 

Enter voice receive state (see examples)

 

AT+VSM

 

Voice compression method

 

 

 

 

 

AT+VEM

 

Event reporting and masking

 

 

 

 

 

AT+VGR

 

Receive gain selection

 

 

 

 

 

AT+VPR

 

Select DTE/DCE interface rate

 

 

 

 

Table 7. The AT Voice Command Set Not Defined In IS-101 Specification

 

 

 

 

 

Command

 

Description

 

 

 

 

 

ATS32

 

Synthetic ring volume

 

ATS33

 

Synthesized ring frequency

 

 

 

 

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Version 1.0

Lucent Technologies Inc.

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Lucent Technologies Host-Based Controller Modem AT specifications AT Voice Command Set, Voice Commands

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.