MultiModemDSVD User Guide

 

4 AT Commands, S-Registers, and Result Codes

Command:

Wn

 

Connect Message Control

Values:

 

 

n = 0, 1, or 2

Default:

 

0

Description: W0 The CONNECT result code reports the serial port speed only.

 

W1

 

The CONNECT result code reports the line speed, the error

 

 

 

correction protocol, and the serial port speed, respectively.

 

W2

 

The CONNECT result code reports the line speed only.

 

 

 

 

 

 

 

Note: See also the \V command

 

 

 

 

Command:

Xn

 

Result Code Selection

Values:

 

 

n = 0–4

Default:

 

4

Description:

 

 

This command selects which subset of the result messages will

 

 

 

be used by the modem to inform the computer of the results of

 

 

 

commands.

 

X0

 

Sends OK, CONNECT, RING, NO CARRIER, ERROR and NO

 

 

 

ANSWER; does not look for dial tone or busy signal.

 

X1

 

Sends X0 messages and connect speed; does not look for dial

 

 

 

tone or busy signal.

 

X2

 

Sends X1 messages with NO DIALTONE; does not look for

 

 

 

busy signal.

 

X3

 

Sends X1 messages with BUSY; does not look for dial tone.

 

X4

 

Sends all messages, including NO DIALTONE and BUSY.

 

 

 

 

 

 

 

Note: If the modem is in fax mode, the only message sent to

 

 

 

indicate a connection is CONNECT without a speed indication.

 

 

 

See also the \V command.

 

 

 

 

Command:

Yn

 

Long Space Disconnect

Values:

 

 

n = 0 or 1

Default:

 

0

Description:

Y0 Disable sending or responding to long space break signal on

 

 

 

disconnect.

 

Y1

 

Enables long space disconnect. In non-error correction mode,

 

 

 

the modem sends a long space of four seconds prior to going

 

 

 

on-hook. In non-error correction mode, the modem responds

 

 

 

to the receipt of a long space (i.e., a break signal greater than

 

 

 

1.6 seconds) by going on-hook.

Command:

Zn

 

Modem Reset

Values:

 

 

n = 0 or 1

Default:

 

None

Description:

 

 

The modem performs a soft reset and restores (recalls) the con-

 

 

 

figuration profile according to the parameter supplied. If no

 

 

 

parameter is specified, zero is assumed.

 

Z0

 

Reset modem to profile saved by the last &W command (pro-

 

 

 

file 0).

 

Z1

 

Reset modem and restore stored profile 1.

Note: See also the &F and &W commands.

Multi-Tech Systems, Inc.

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