Omni 56K Plus Series User’s Guide

Chapter 4

Command Sets

This chapter lists the command set the Omni 56K Plus supports. These commands include data command sets, fax command sets and voice command sets.

4.1Data command sets

The basic AT command sets and extended AT& command sets are shown in the following tables.

4.1.1 Basic AT Command Sets
Table 4-1 Basic AT Command Sets

COMMAND

OPTIONS

FUNCTION & DESCRIPTION

REF.

 

 

 

 

A/

 

Re-execute the last command once.

 

 

 

 

 

A>

 

Re-execute the last command once or repeat the last call up to

 

 

 

9 times. (See also S8)

 

 

 

 

 

<any key>

 

Terminate current connection attempt when entered in

 

 

 

handshaking state.

 

 

 

 

 

+++

 

Escape sequence code, entered in data state, wait for modem

 

 

 

to return to on line command mode.

 

All the Following Commands Require an “AT” Prefix:

 

 

Table 4-2 AT Command Sets Requiring an "AT" Prefix

 

 

 

 

 

COMMAND

OPTIONS

FUNCTION & DESCRIPTION

REF.

 

 

 

 

A

 

Go on-line in answer mode. (See also S39.2, S43.6)

 

 

 

 

 

Bn

 

Handshake option.

S28.7

 

 

 

 

 

B0 *

Select CCITT V.22 for 1200 bps

 

 

 

 

 

 

B1

Select Bell 212A for 1200 bps communication.

 

 

 

 

 

Ds

 

Dial s (numbers and options) that follow (see also S38.0,

 

 

 

S35.4). The options of s are listed as follows:

 

 

 

 

 

 

0-9, A, B, C, D

Digits for dialing

 

 

#, *

 

 

 

 

 

 

 

P

Pulse dialing

S23.1

 

 

 

 

 

T

Tone dialing

S23.1

 

 

 

 

 

,

Pause for a time specified in S8. Remaining digits will be dialed

 

 

 

as in-band DTMF.

 

 

 

 

 

 

;

Return to command state after dialing.

 

 

 

 

 

 

!

Hook flash

S56

 

 

 

 

 

@

Wait for a 5 second silence before proceeding , otherwise return

 

 

 

NO ANSWER.

 

 

 

 

 

 

R

Reverse handshake. (go on-line in Answer mode)

S17.5

 

 

 

 

Command Sets

4-1