User's Guide for ZyXEL Omni 56K USB Modem
5-1Chapter 5

Command Sets

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

5.1 Data Command Sets

5.1.1 Basic AT Command Sets
Table 10. Basic AT Command Sets
COMMAND OPTIONS FUNCTION AND 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 online
command mode.
All of the following commands require an “AT” prefix:
Table 11. AT Command Sets Requiring an "AT" Prefix
COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref.
AGo online in answer mode. (See also
S39.2, S43.6).
Bn Handshake option: S28.7