MaxTech PCI Internal Voice/FAX/Data/Speakerphone Modem User Manual
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X1
Same as X0 plus all CONNECT responses/
blind dialing
X2
Same as X1 plus dial tone detection
X3
Same as X1 plus busy signal detection/
blind dialing
X4
All responses and 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
configuration profile 0
Z1
Reset and retrieve active configuration
profile 1
3.4
Extended AT Commands
&C_
&C0
Force Carrier Detect Signal High (ON)
&C1 Turn on Carrier Detect signal when
remote carrier signal is present
&D_
&D0
Modem ignores the Data Terminal Ready
signal
&D1
Modem returns to Command Mode after
DTR toggle
&D2 Modem hangs up, returns to the
Command Mode after DTR toggle
&D3
Resets modem after DTR toggle
&F
&F
Recall factory default configuration
&G_
&G0 Guard tone disabled
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&J_
&J0
Auxiliary relay never operated
&J1
Activates auxiliary relay when modem is
off-hook
&K_
&K0
Disable flow control
&K3 Enable hardware flow control
&K4
Enable software flow control
&M_
&M0 Asynchronous operation
&P_
&P0 United States setting for off-hook-
(make) to-on-hook (break) ratio
&P1
UK and Hong Kong off-hook-(make) to-
on-hook (break) ratio