7–12 Reference Guide
Reference Information

Voice Commands

Command (Conexant)
+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 sec).
+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 × 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.
319954-001.book Page 12 Thursday, February 3, 2005 3:03 PM