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Command Function Default Range
+VSD=m Silence detection (quiet and silence) 128, 50 0-255,0-255
+VSM=m Compression method selection
m=<cml>, <vsr>, <scs>, <sel>
<cml> = 0,128 : 8-bit Linear PCM
= 1,129: 16-bit Linear PCM
= 132: 4-bit ADPCM
= 140: 8-bit Cirrus A-
Law(CL1)
= 141: 3-bit ADPCM
<vsr> = 4800Hz: Previous Default
= 7200Hz
= 8000Hz: Bulletin Boards
= 9600Hz
= 11KHz: Windows .WAV files
<scs> = 0: Disable DCE silence
compression
= n+1: Noise threshold
<sel> = 0 : Disable silence expansion
140, 8000
0, 0
+VSP=n Speakerphone on/off control 0 0,1
#VSPS=n Speakerphone Type Selection 0 0, 1
+VTD=n Beep tone duration timer 100 5-255
+VTX Play mode none Call
V.80 Videoconferencing Mode Commands
Command
Function
Default
Range
FCLASS=0 Mode selection 0 0, 1, 8, 80
+A8E=m V.8 and V.8 bis operation control 1, 1, C1, 0, , call
+ES=m Error control selection 0-255 call
+ESA=m Synchronous access mode
configuration
0,0,1,,0,0,126 call
+ITF=m Transmit flow control thresholds 320, 192, 0 call
8-bit in-band
control
In-band commands and indications for
use in synchronous access mode only
non call