Reference Information

 

Modem Reference Information

 

 

 

Conexant AT Commands (Advanced Users Only)

 

 

Command

Function (Conexant)

 

 

+FLO=a

Set flow control type: 0=XON/XOFF and RTS/CTS flow control turned off; 1=XON/XOFF flow

 

control in either direction; 2=RTS for flow control of modem by DTE, and CTS for flow control of

 

DTE by modem.

+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).

+VRXn

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.

Reference Guide 95