AOpen FM56 Manual page 8

5.2.2 Voice Commands
5.2.2.1 +VIP - Voice Initialize All Parameters
5.2.2.2 +VRX - Start Modem Receive (Record)
5.2.2.3 +VTS - Send Voice Tone(s)
5.2.2.4 +VTX - Start Modem Transmit (Playback)
5.2.2.5 +VGR - Voice Gain Receive (Record Gain)
5.2.2.6 +VGT - Voice Gain Transmit (Playback Volume)
5.2.2.7 +VIT - Voice Inactivity Timer (DTE/Modem)
5.2.2.8 +VLS - Analog Source/Destination Selection
5.2.2.9 +VRA - Ringback Goes Away Timer
5.2.2.10 +VRN - Ringback Never Appeared Timer
5.2.2.11 +VSD - Silence Detection (Quiet and Silence)
5.2.2.12 +VSM - Compression Method Selection
5.2.2.13 +VTD - Beep Tone Duration Timer
5.2.2.14 +VDR - Distinctive Ring
5.2.2.15 +VDT - Control Tone Cadence Reporting
5.2.2.16 +VBT - Buffer Threshold Setting
5.2.2.17 +VPR - Select DTE/Modem Interface Rate (Turn Off
Autobaud)
5.2.3 Speakerphone Commands
5.2.3.1 +VSP - Speakerphone ON/OFF
5.2.3.2 +VDX - Speakerphone Duplex Mode
5.2.3.3 +VGM - Microphone Gain
5.2.3.4 +VGS - Speaker Gain
6. ISDN COMMANDS
7. COMMAND SET SUMMARY
8. INDEX