ZyXEL Communications OMNI 56K Plus Series User Manual page 45

COMMAND FUNCTION
+VGR Set the gain
for the
received
voice sample.
+VGT Set the gain
for the
transmitted
voice sample.
+VLS Select a voice
I/O device.
+VRA Ring back
goes away
timer
+VRN Ring back
never come
timer
+VTX Voice transmit
mode
+VSD Silence
detection
+VSM Selection of
compression
method
+VTS= Dual Tone
[x,y,z] Generation
+VTS= DTMF Tone
{x,y} Generation
Command Sets
Table 4-12 Voice AT Commands
OPTION DEFAULT
0 0
0-255 128
0,1, 2 0
0 – 255 70
0 – 255 10
NA NA
Threshold, 15,70
Period
(0-255), (0-255)
4;ZyXEL ADPCM; 4,9600
4 Bit;(9600)
x: 0-3000 Hz NA
y: 0-3000 Hz
z: 0- 1000(10ms)
x:0-9,*,#, A-D NA
y:0-1000 (10ms)
Omni 56K Plus Series User's Guide
DESCRIPTION
0: Automatic gain control(AGC)
0: Silence
1-255: The larger the value, the louder the
voice will be.
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
Telephone line. The local phone is provided
with power. The modem can record/play
through the local telephone line.
0: turn off the timer
1-255: Defines the period without ringback
(after at lease one ringback has been
detected) in 100 -ms units.
0: turn off the timer
1-255: Defines the period without ringback
after dialing in 1 sec unit.
Switches to voice transmit mode.
Threshold:
0: Disable silence detection.
1-255: The smaller the value, the more
sensitive to the silence detection it will be.
Period:
1-255: The required period of silence detection
before DCE reporting the silence event.
0: Disable silence detection.
Unit: 0.1 second
IMA 4 bit ADPCM.
Sample rate: 9600
x: first tone frequency
y: second tone frequency
z: duration in 10ms unit
x: DTMF digits (0-9,*,#, A,B,C,D)
y: duration in 10ms unit
4-17