Host-Based Controller Modem

Data Addendum

AT Command Set

June 15, 1998

 

 

AT Command Reference (continued)

 

Wn

Result Code Option

W0:

CONNECT result code reports DTE receive speed. Disable protocol result codes.

W1:

CONNECT result code reports DTE receive speed. Enable protocol result codes.

W2:

CONNECT result code reports DCE receive speed. Enable protocol result codes (default).

Result Codes:

 

OK

n = 0, 1, 2

ERROR

Otherwise

Xn

Result Code Selection and Call Progress Monitoring

This command enables tone detection options used in the dialing process. As these functions are chosen, the modem chip set’s result codes are also affected. Therefore, this command is frequently used to control the modem chip set’s responses. The primary function of this control is to control the modem chip set’s call response capabilities.

 

Ext. Result Code

Dial Tone Detect

Busy Tone Detect

X0

Disable

Disable

Disable

X1

Enable

Disable

Disable

X2

Enable

Enable

Disable

X3

Enable

Disable

Enable

X4

Enable

Enable

Enable (default)

X5

Enable

Enable

Enable

X6

Enable

Enable

Enable

X7

Disable

Enable

Enable

Extended Result Codes

 

Disabled:

Displays only the basic result codes OK, CONNECT, RING, NO CARRIER, and ERROR.

Enabled:

Displays basic result codes, along with the connect message and the modem's date rate,

 

and an indication of the modem's error correction and data compression operation.

Dial Tone Detect

 

 

Disabled:

The modem dials a call regardless of whether it detects a dial tone. The period of time

 

the modem waits before dialing is specified in register S6.

Enabled:

The modem dials only upon detection of a dial tone, and disconnects the call if the dial

 

tone is not detected within 10 seconds.

Busy Tone Detect

 

 

Disabled:

The modem ignores any busy tones it receives.

Enabled:

The modem monitors for busy tones.

Result Codes:

 

 

OK

 

n = 0, 1, 2, 3, 4, 5, 6, 7

ERROR

Otherwise

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Lucent Technologies Inc.

Version 1.0

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Lucent Technologies Host-Based Controller Modem AT Result Code Option, Result Code Selection and Call Progress Monitoring

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.