User's Manual

Omni 56K Plus Series User’s Guide
Command Sets 4-1
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.
4.1 Data 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