HP Notebook PC Reference Manual page 145

Reference Information
Modem Reference Information
Command Function (Conexant)
+FMI Report modem manufacturer.
+FMM Report modem model.
+FMR Report modem version, revision, or date.
+FPR= n Set DTE/modem interface rate in bits/sec: 0=automatic detection (default).
+FRH= n Receive data with HDLC framing.
+FRM= n Receive data.
+FRS= n Receive silence, n ×10 ms.
+FTH= n Transmit data with HDLC framing.
+FTM= n Transmit data.
+FTS= n Stop transmission and wait, n ×10 ms.
Voice Commands
+FCLASS=8 Select voice mode.
+VDR= a , b Set report ring cadence and timing of RING event code:
a =0 disables ring cadence reporting, a =1 enables.
b sets report content: 0=DROF and DRON messages only.
+VDT= a , b Set report control tone cadence:
a =0 disables ring cadence reporting, a =1 enables.
b =0 reports CPOF and CPON messages only.
+VDX= a Select speakerphone half-duplex ( a =0) or full duplex ( a =1).
+VGM= n
Set microphone gain of speakerphone function (0 to 255).
+VGR= n Set gain for received voice samples (0 to 255).
+VGS= n
Set speaker gain of speakerphone function (0 to 255).
+VGT= n Set volume (120 to 135).
+VIP Initialize all voice parameters to defaults.
+VIT= n Set initial value for DTE/modem inactivity timer (0 to 255 seconds).
+VLS= n
Select sources/destinations for analog data.
+VNH= n Set automatic hangups: 0=enable, 1=disable, 2=disable automatic hangups in non-voice modes.
+VPR= n Set DTE/modem interface rate (0=autobaud).
+VRA= n Set delay between ringbacks before modem assumes remote station is off hook (0 to 255 x 0.1 sec).
+VRN= n Set delay between ringbacks before modem assumes remote station is off hook (0 to 60 sec).
+VRX n Start voice reception: 0=start without periodic tone production, 1=start with periodic tone production.
+VSD= a , b Set silence detection sensitivity and required period of silence before modem reports silence at end of
voice receive.
+VSM= a , b , c , d Set voice and silence compression methods, and voice sampling rate.
+VSP= a Disable ( a =0) or enable ( a =1) speakerphone.
+VTD= n Set beep duration (1 to 500 x 0.01 sec).
+VTR Start voice transmission and reception.
+VTS= string Send voice tones.
+VTX Start voice transmission.
AT* Commands
*B Display black-listed numbers.
*D Display delayed numbers.
144 Reference Guide