Chapter
2
Table
3.
Basic Command Codes
Code Description Function
AT Attention Code Wakes up the Modem to command receptive
state. Starts the command line.
CR Carriage Return Closes the command line and executes com-
mands. Register
S3
defines the carriage
return character.
BS Backspace Edits the command line by deleting charac-
ters one by one. Register
S5
defines the
backspace character.
Returns the Modem to command mode from
on-line mode. Register
S2
defines the escape
code character.
S12
defines the escape code
guard time.
0
On-line Returns the Modem to on-line mode from
command mode.
Z Reset Resets the Modem to default condition.
+
+
+
Escape Code
Table
4.
Dialing and Answering Command Codes
~
Code Description Function
D
Dial
P
Pulse Dial
T Touch-tone Dial
R
Reverse Mode
3
Pause
(comma)
;
(semicolon)
Sets the Modem to originate a telephone call.
D
command parameters include:
0-9,
(
),
space,
*,
and
#.
Sets the Modem to pulse dialing mode.
Sets the Modem to touch-tone dialing mode.
Automatically changes the Modem to answer
mode after a call is originated.
Causes the Modem to pause while dialing.
Follows the access code. Length of pause
is
set by Register S8.
Returns the Modem to command mode after
dialing.
A/
A Answer Mode Immediately sets the Modem to answer mode
Repeat Command Repeats the command line. AT and ENTER
are unnecessary for this command.
without waiting for a ringing signal.
19
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