9
Commands
Most people use the communication software programs to tell modems what
to do. Therefore, you may not use the commands in this chapter. However,
if you prefer to communicate with your modem directly, you can type the
commands described below.
Here describes how to work in the terminal mode.
Typing Commands
Use the BACKSPACE key to delete typing errors.
Every command (except A/ and +++) must begin with the AT or at
prefix and be entered by pressing the <Enter> key.
When you see an n, replace the n with one of the letter or numeric
options listed for that command. For example, for the En command,
you might type ATE1.
Basic AT Command Guide
+++Escape Sequence
An escape sequence allows the modem to exit data mode and enter on-line
command mode. While in on-line command mode, AT commands are sent
directly to the modem. Use the return to on-line data mode command to
return to data mode.
Place a pause before and after the escape sequence to prevent the modem
from interpreting the escape sequence as data. The length of the pause is
set by register S12, the escape guard time. Register S2 identifies the
escape sequence character.
A/ — Repeat Last Command
Use this command to repeat the last AT command. The modem repeats the
command currently in the command buffer. Do not use the AT prefix with
this command. Do not conclude the command with a terminating character
such as enter.
A — Answer
This command instructs the soft modem to go off-hook and answer an
incoming call.
