3Com U.S. Robotics 56K Voice, Command Reference Manual

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B
A
LPHABETIC
C
OMMAND
S
UMMARY
This appendix contains an alphabetic listing of the AT commands to
which the modem will respond. Default settings are
bold
.
Basic Command Set
Command Function
$ Display help for the Basic command set.
+++ Escape code. Once your modem is online with another device,
the only command it recognizes is an escape code of three typed
plus signs, which forces the modem back to Command mode.
Do the following when issuing the command:
1
Wait 1 second after sending the last item of data.
2 Type
+++
3 Wait 1 second before typing any data.
When you type +++, the modem will either hang up or stay on
line, depending on how you set S14.
> Repeat command. If you include the repeat command in the Dial
string, the modem will dial the number and wait 60 seconds for
a carrier.
If the line is busy, the modem will pause for 2 seconds and then
redial. The modem makes a maximum of 10 attempts.
A/ Reexecute the last-issued command. DO NOT type AT or press
Enter.
A> Repeat the last-issued command until canceled by pressing any
key. DO NOT type AT or press Enter.
AT Attention prefix: informs a modem that a command is coming.
AT must precede all commands except A/, A>, and +++.
A Force a modem to answer when it is not receiving an incoming
call.