Appendix A. Manual modem commands
The following section lists commands for manually programming your
modem.
Commands are accepted by the modem while it is in Command Mode. Your
modem is automatically in Command Mode until you dial a number and
establish a connection. Commands may be sent to your modem from a PC
running communication software or any other terminal devices.
All commands sent to the modem must begin with
AT
and end with
ENTER
.
All commands may be typed in either upper or lower case, but not mixed. To
make the command line more readable, spaces may be inserted between
commands. If you omit a parameter from a command that requires one, it is
just like specifying a parameter of
0
.
Example:
ATH [ENTER]
This command causes your modem to hang up.
Basic AT commands
In the following listings, all default settings are printed in
bold text.
Command
Function
A
Manually answer incoming call.
A/
Repeat last command executed.
Do not
precede
A/
with AT or
follow with ENTER.
B_
B0
B1
CCITT mode
Bell mode
D_
0 - 9, A-D, # and *
L
last number redial
P
pulse dialing
Note: Pulse dialling is not supported for U.K., Netherlands,
Sweden, Norway, Denmark, Finland, Switzerland, Germany,
Italy, France.
T
touch-tone dialing
W
wait for second dial tone
,
pause
© Copyright IBM Corp. 2001
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