Table of Contents
Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434H)
5
Voice Commands ................................................................................................................................... 44
Commands That Change for Voice Mode Support ............................................................................ 44
Voice +V Commands Detail .................................................................................................................. 45
+FCLASS=8
Select Voice Mode .................................................................................................... 45
+VNH
Automatic Hang-Up Control ................................................................................................. 45
+VIP
Initialize Voice Parameters ................................................................................................... 45
+VRX
Enter Voice Receive State ................................................................................................... 45
+VTS
Send Voice Tone(s) .............................................................................................................. 46
+VTX
Start Voice Transmission Process ....................................................................................... 47
+VGR
Voice Gain for Received Voice Samples ............................................................................. 47
+VGT
Set the Volume for Transmitted Voice Samples .................................................................. 47
+VIT
Set DTE/DCE Inactivity Timer .............................................................................................. 48
+VLS
Select Analog Source/Destination ........................................................................................ 49
+VRA
Ringback Goes Away Timer ................................................................................................. 50
+VRN
Ringback Timer .................................................................................................................... 50
+VSD
Silence Detection Sensitivity ................................................................................................ 51
+VSM
Select Voice Compression Method ...................................................................................... 52
+VTD
Beep Tone Duration Timer (DTMF/Tone Generation Duration) ........................................... 53
+VDR
Distinctive Ring (Ring Cadence Reporting) .......................................................................... 53
+VEM
Event Reporting and Masking .............................................................................................. 54
Interface Configuration Commands .................................................................................................... 55
+VBT
Set Modem Flow Control Assert and Deassert Points ......................................................... 55
+VPP
Enable or Disable Voice Mode Packet Protocol................................................................... 56
+VPR
Select DTE/DCE Interface Rate (Turn Off Autobaud) .......................................................... 56
Flow Control ........................................................................................................................................... 57
Voice Mode Result Codes ..................................................................................................................... 57
Unsolicited Voice Mode Result Codes ................................................................................................ 58
Valid Complex Event Report Tags ...................................................................................................... 58
Voice Mode Shielded Codes ................................................................................................................. 59
DTE/DCE Interface Rates ...................................................................................................................... 61
Chapter 5 – Country/Regional Code Configuration ............................................................................... 62
Index ........................................................................................................................................................... 63
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