MaxTech Plug & Play Internal Voice/FAX/Data/SVD Modem - Manual (Page 11)

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O_ O0 Return to Data Mode
O1 Return to Data Mode and initiate an
equalizer retrain
P Set Pulse dial as default
Q_ Q0 Modem sends responses
Q1 Modem does not send responses
Sr? Read and display value in register r.
Sr=n Set register r to value n (n = 0-255).
T Set Tone Dial as default
V_ V0 Numeric responses
V1 Word responses
W_ W0 Report DTE speed only
W1 Report line speed, error correction
protocol, and DTE speed.
W2 Report DCE speed only
X_ X0 Hayes Smartmodem 300 compatible
responses/blind dialing
X1 Display connect message according to
AT\V, blind dial, and ignore busy tone.
X2 Same as X1 plus dial tone detection
X3 Same as X1 plus busy detection/blind
dialing
X4 All responses and dial tone and busy
signal detection
X5 Same as X4
X6 Same as X4
X7 Same as X0 plus dial tone and busy
signal detection
Y_ Y0 Modem does not send or respond to
break signals
Y1 Modem sends break signal for four
seconds before disconnecting
Z_ Z0 Reset and retrieve active profile 0
Z1 Reset and retrieve active profile 1
3.4 Extended AT Commands
&C_ &C0 Force Carrier Detect Signal High (ON)
&C1 Turn on CD when remote carrier is
present
&D_ &D0 Modem ignores the DTR signal
&D1 Modem returns to Command Mode after