NEC 750C - Manual (Page 68)

Modem Commands A-2
AT Commands (cont’d)
Command Description Default
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 X
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 X
W0 CONNECT reports DTE speed X
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 X
Y0 Disable long space disconnect X
Y1 Enable long space disconnect
Z Soft reset
&C0 CD is always on
&C1 CD follows the state of carrier X
&D0 Ignore DTR