Western Telematic SRM-100 User Manual
Page 42

Command
Function/Options
AT
Attention Command. Required prefix for all modem commands. Not required
for the A/ command or +++ command.
A/
Re-execute Last Command. Used mainly to redial. Does not require the
AT prefix or a Carriage Return.
A
Manual Answer. Goes off hook in answer mode.
Bn
CCITT or Bell Operation
B0
Selects CCITT operation at 300 or 1200 bps.
* B1
Selects Bell operation at 300 or 1200 bps.
Cn
Transmit Carrier Signal
C0
Not Supported.
C1
Enable Transmit Carrier Signal.
Dn
Dial Command. Dials the specified phone number. Can also include the
following command options:
*
Dials the “star” digit (tone dialing only).
#
Dials the “pound” digit (tone dialing only).
L
Re-dials last number dialed
P
Pulse (Rotary) Dial Mode. 10 pulses per second.
T
Tone Dial Mode (DTMF).
W
Wait for dial tone (1 to 255 seconds, Default = 50 sec.)
,
(Comma) Pause. Modem will pause for time period specified by
register S8 before dialing (0 to 255 seconds, Default = 2 sec.)
@
Wait for quiet answer.
!
(Exclamation Point) Flashes the switch hook.
;
(Semicolon) Return to Command Mode after dialing.
&
Wait for credit card dial tone before continuing with dial string.
If the bong is not detected within the time specified by register S7,
the modem will abort the dial sequence, go on-hook, and generate
an error message.
^
Toggles calling tone for current dial attempt only.
S=n
Dial stored number (where n = 0 to 3).
( )
(Parentheses) Ignored; may be used to format the dial string.
-
(Dash) Ignored; may be used to format the dial string.
En
Set Local Echo.
* E0
Disable echoing of commands to screen.
E1
Enable echoing of commands to screen.
Hn
Disconnect (Hang-Up)
H0
Hangs Up (goes on-hook).
H1
Goes off-hook.
9-3
SRM-100 - Secure Rack Modem, User's Guide
Modem Command Set (AT Commands)