Connect Modem to Telephone Network

Table 29: Modem Fields (continued)

Field

Description

Enable Error

Turns on the V.42 LAPM and MNP error control protocols. The

 

Control

field has a blank default of 6 characters. The Paradyne products

 

use the command \N5 to enable V.42/MNP/Buffer error control

 

while the Intel product uses \N3 to provide similar functionality.

 

 

 

Misc. Init.

This field has a 20-character blank default and supports any

Param

initialization parameters not already specified. The AT

 

commands specified in this field are always the last initialization

 

parameters to be sent to the external modem. This field is not

 

case-sensitive.

 

 

 

Auto-Answer

This field controls the number of rings required before the

Ring Number

modem answers an incoming call. This field should be set to

 

S0=10.

 

 

 

Dial Type

This field controls the type of interregister signaling used

 

between the modem and the CO. This 3-character field is

 

denoted by “T” for tone dialing (default) and “P” for pulse dialing.

 

This setting depends on type of line (tone or pulse) to the

 

modem.

 

 

 

Adjustable

This field controls the make/break ratios of pulses and DTMF

Make/Break

dialing. Most modems have support for different make/ break

Ratio

options for pulse dialing only. Paradyne, Intel, and U.S. Robotics

 

use the default &P0 to select a ratio of 39% make and 61%

 

break for communication for the United States and Canada. The

 

option &P1 sets a ratio of 33% make and 67% break for the

 

United Kingdom and Hong Kong. This is a 5-character blank

 

field (default) and is not case-sensitive.

 

 

 

Dial Command

This field has a default of “D” in a 3-character field. This field

 

denotes the standard dialing command of the modem and is not

 

case-sensitive.

 

 

 

No Answer Time-Out

Most modems provide a timer that abandons any outbound data call after a predetermined interval. This is a non-administrable parameter.

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Issue 10 June 2005 149

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Avaya CMC1 manual Turns on the V.42 Lapm and MNP error control protocols