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4 AT Commands, S-Registers, and Result Codes
53
Command: O
n
Return Online to Data Mode
Values: 0, 1, 3
Default: None
Description: O0 Exit online command mode and return to data
mode (see
+++AT<CR>
escape sequence ).
O1 Issue a retrain and return to online data mode.
O3 Issue a rate renegotiation and return to data
mode.
Command: P Pulse Dialing
Values: P, T
Default: T
Description: Configures the modem for pulse (non-touch-tone)
dialing. Dialed digits are pulsed until a
T
com-
mand or dial modifier is received.
Command: Q
n
Result Codes Enable/Disable
Values:
n
= 0 or 1
Default: 0
Description: Q0 Enable result codes.
Q1 Disable result codes.
Q2 Returns an
OK
for backward compatibility with
some software.
Command: S
r
=
n
Set Register Value
Values:
r
= S-register number;
n
varies
Default: None
Description: Set value of register S
r
to value of
n
, where
n
is
entered in decimal format. E.g., S0=1.