ZyXEL Communications 56K II, 56K Plus II, Omni 56K II manual 69

Omni 56K II and Omni 56K Plus II User’s Guide

COMMAND	FUNCTION	OPTION	DEFAULT	DESCRIPTION
				2: The DCE is off-hook and is
				connected to the telephone line.
				Power is also provided to the local
				phone. The modem is able to
				record/play through the local
				telephone line.
+VRA	Ring back goes away	0 - 255	70	0 : turns off the timer
	timer			1-255: Defines the period without
				ringback (after at least one ringback
				has been detected) in 100 -ms units.
+VRN	Ring back never	0 - 255	10	0 : turns off the timer
	come timer			1-255: Defines the period without
				ringback after dialing in 1 sec units.
+VTX	Voice transmit mode	N/A	N/A	Switches to voice transmit mode.
+VSD	Silence detection	Threshold,	15,70	Threshold:
		Period (0-		0: Disable silence detection.
		255), (0-		1-255: The smaller the value, the more
		255)		sensitive to the silence detection it will
				be.
				Period:
				1-255: The required period of silence
				detection before DCE reports the
				silence event.
				0: Disable silence detection.
				Unit: 0.1 second
+VSM	Selection of	4;ZyXEL	4,9600	IMA 4 bit ADPCM.
	compression method	ADPCM; 4		Sample rate : 9600
		Bit;(9600)
+VTS= [x,y,z]	Dual Tone	x: 0-3000	N/A	x: first tone frequency
	Generation	Hz		y: second tone frequency
		y: 0-3000		z: duration in 10ms unit
		Hz
		z: 0-
		1000(10ms)
+VTS= {x,y}	DTMF Tone	x:0-9,*,#, A-	N/A	x: DTMF digits (0-9,*,#, A,B,C,D)
	Generation	D y:0-1000		y: duration in 10ms unit
		(10ms)
+VTS= x,x...	DTMF Tone	x:0-9,*,#, A-	N/A	x: DTMF digits (0-9,*,#, A,B,C,D)
	Generation	D		Duration:+VTD setting. (in 10ms unit)

Command Sets 5-23