Data Addendum

Host-Based Controller Modem

June 15, 1998

AT Command Set

 

 

AT Commands for Homologation Testing and Debugging (continued)

Homologation Parameters

Table 13. The Homologation Parameters

Par #

Parameter Description

Range

Reference

 

 

 

 

1

Pulse dial make time

0—255

ATD

2

Pulse dial break time

0—255

ATD

3

Pulse dial digit pattern

1 = normal, 2 = Sweden,

ATD

 

 

3 = Norway

 

4

DTMF high tone level in dB with implied minus sign

0—255

ATD

5

Min. DTMF dial speed in ms

0—255

S11

6

Max. DTMF dial speed in ms

0—255

S11

7

Call progress detection threshold in dB with implied minus

0—255

 

 

sign

 

 

8

Dial tone delay, i.e., waiting time before dial tone

0—255

 

 

detection begins in multiples of 10 ms

 

 

9

Dial tone hole time in ms

0—255

 

 

 

 

 

a

Delay before resetting ring count to 0, in multiples of 100

0—255

 

 

ms

 

 

b

Min. ring count for auto-answer

0—255

S0

c

Max. ring count for auto-answer

0—255

S0

d

Min. ring signal period =

0—255

 

 

1000/(0.833 x Max. ring frequency)

 

 

e

Max. ring signal period =

0—255

 

 

1000/(0.833 x Min. ring frequency)

 

 

f

Min. ring cadence on time, in multiples of 10 ms

0—255

 

 

 

 

 

10

Min ring cadence off time, in multiple of 20 ms

0—255

 

 

 

 

 

11

Min. busy cadence on time, in multiples of 10 ms

0—255; If 0, use the standard

 

 

 

busy detection algorithm;

 

 

 

otherwise, use the country

 

 

 

specific values for cadence

 

12

Max. busy cadence on time, in multiples of 10 ms

0—255; If 0, use the standard

 

 

 

busy detection algorithm;

 

 

 

otherwise, use the country

 

 

 

specific values for cadence

 

13

Number of busy cycles required to detect busy condition

0—255

 

 

 

 

 

14

Min. busy cadence off time, in multiples of 10 ms

0—255; If 0, use the standard

 

 

 

busy detection algorithm;

 

 

 

otherwise, use the country

 

 

 

specific values for cadence

 

15

Max. busy cadence off time, in multiples of 10 ms

0—255; If 0, use the standard

 

 

 

busy detection algorithm;

 

 

 

otherwise, use the country

 

 

 

specific values for cadence

 

16

Continuous # unavailable detection flag

0 = disabled, 1 = enabled

 

 

 

 

 

17

Answer tone validation time in multiples of 10 ms

0—255

 

18

Blacklisting/delayed flag

0 = disabled, 1 = enabled

ATD

Version 1.0

Lucent Technologies Inc.

65

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Lucent Technologies Host-Based Controller Modem AT specifications Pulse dial make time 255

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.