Table of Contents
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Command
Description
O0
Go into online data mode without retrain
sequence
O1
Go online data mode with retrain sequence
P
Set pulse dial
Q0
Enable result code
Q1
Disable result code
Sn=m
Write m to S-register n
Sn?
Return the value of S-register n
T
Set dial tone
V0
Set numeric result code
V1
Set verbose result code
W0
CONNECT reports DTE speed
W1
CONNECT reports DTE speed, carrier
speed and protocol
W2
CONNECT reports carrier speed
X0
Report CONNECT message only
Ignore dial tone and busy signal
X1
Report CONNECT message according to
ATW
Ignore dial tone and busy tone signal
X2
Report CONNECT message according to
ATW
Ignore busy signal
X3
Report CONNECT message according to
ATW
Ignore dial tone
X4
Report CONNECT message according to
ATW
Y0
Disable long space disconnect
Y1
Enable long space disconnect
Z
Soft reset
&C0
CD is always on
&C1
CD follows the state of carrier
&D0
Ignore DTR
Modem Commands A-2
AT Commands (cont'd)
Default
X
X
X
X
X
X
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