ZyXEL Communications 56K manual +Vls, +Vra, +Vrn, +Vtx, +Vsd, +Vsm

User's Guide for ZyXEL Omni 56K USB Modem

+VLS

Select a voice 0, 1, 2 I/O device

0

0:The DCE is on-hook. Local phone connected to Telco line.

1:The DCE is on-hook and is connected to the local phone. The local phone is also provided with power. The modem can record/play through the local phone set.

2:The DCE is off-hook and is connected to the phone line. The local phone is provided with power. The modem can record/play through the local telephone line.

+VRA	Ring back	0 to 255	70	0: turn off the timer.
	goes away			1 to 255: Defines the period without ringback
	timer			(after at lease one ringback has been
				detected) in 100 ms units.
+VRN	Ring back	0 to 255	10	0: turn off the timer.
	never come			1 to 255: Defines the period without ringback
	timer			after dialing in 1 sec unit.
+VTX	Voice	N/A	N/A	Switches to voice transmit mode.
	transmit
	mode
+VSD	Silence	Threshold,	15, 70	Threshold:
	detection	Period		0: Disable silence detection.
		(0 to 255), (0 to		1 to 255: The smaller the value, the more
		255)
				sensitive to the silence detection it is.
				Period:
				1 to 255: The required period of silence
				detection before DCE reporting the silence
				event.
				0: Disable silence detection.
				Unit: 0.1 second
+VSM	Selection of	4; ZyXEL	4, 9600	IMA 4 bit ADPCM.
	compression	ADPCM; 4 Bit;		Sample rate: 9600.
	method	(9600)
+VTS= [x, y,	Dual Tone	x: 0 to 3000 Hz	N/A	x: first tone frequency
z]	Generation	y: 0 to 3000 Hz		y: second tone frequency
		z: 0 to 1000		z: duration in 10ms unit
		(10ms)
+VTS= {x, y}	DTMF Tone	x: 0 to 9, *, #, A	N/A	x: DTMF digits (0 to 9, *, #, A, B, C, D)
	Generation	to D		y: duration in 10ms unit
		y: 0 to 1000
		(10ms)
+VTS= x, x…	DTMF Tone	x: 0 to 9, *, #, A	N/A	x: DTMF digits (0 to 9, *, #, A, B, C, D)
	Generation	to D		Duration: +VTD setting (in 10ms unit).

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