4 AT Commands, S-Registers, and Result Codes
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Command: $ Call Card Tone Detect
Values: n/a
Description: Placed in dial command, causes modem to wait
for a call card tone before processing next part of
command (such as a call card number).
Command: %%%AT<CR> Remote Configuration Escape Sequence
Values: n/a
Description: Initiates remote configuration mode while online
with remote modem. The remote configuration
escape character (%) is defined in register S13.
Command: +++AT<CR> Escape Code
Values: n/a
Description: Puts modem in command mode (and optionally
issues a command) while remaining on line.
Enter +++AT, up to ten command characters (or
as defined by S34), and a RETURN. Used mostly
to issue hang-up command: +++ATH<CR>.
Command: <BREAK>AT<CR> Escape Sequence
Values: n/a
Description: Alternate escape method. Puts modem in com-
mand mode while remaining on line. Send a
<BREAK> signal followed by AT, up to sixty
command characters, and a RETURN. You must
set the modem to %E2 or %E3 before you can
use this escape method.
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