Using Your Modem
3-3
Issue 2 May 1995
The escape sequence is a series of characters (usually ‘+++’)
that you type in to switch from Data mode to online Command
mode. Use the escape sequence when you want to enter a
command to the modem while it is in Data mode. Think of the
escape sequence as a way to get the modem’s attention when it
is busy sending or receiving data. For more information on the
escape sequence, see page 3-9.
Using AT Commands
The KeepInTouch PCMCIA modem uses AT commands and
S-Registers to control its operation. These commands are
issued to your modem from your computer through a
communications software package.
Before you can enter commands to your modem, make sure you
have installed the modem in the computer as described in
Chapter 2,
Installation, and that you have a communications
software package installed and running on your computer. The
software must be set up to recognize your modem. Refer to your
communication software’s documentation for more information.
To use AT commands, the modem must be in either Command
mode or online Command mode. If the modem is in Data mode,
you need to enter the escape sequence (+++) to switch to
Command mode (see page 3-9) before entering a command.
Please review the following guidelines before using any
AT commands.
G
All commands (except A/ (which repeats the last
command) and +++ (the escape sequence)) must begin
with the characters AT and end by pressing the Enter
key.
G
The AT (or at) prefix (which means attention) can be
upper- or lowercase, but the modem will not recognize
mixed case prefixes (do not use ‘At’ or ‘aT’).
