Chapter 10 - Voice Mode Operation
10-19
OK
AT+VSM=<cml>,<vsr>
This command causes the DCE to select a compression scheme and sample rate as
follows:
<cml>
Compression Scheme
Bits/Sample
<vsr> possible values
2
ZyXEL 2 ADPCM
2
7200, 8000, 9600, 11025
3
ZyXEL 3 ADPCM
3
7200, 8000, 9600, 11025
30
ZyXEL 3 ADPCM (new)
3
7200, 8000, 9600, 11025
4
ZyXEL 4 ADPCM
4
7200, 8000, 9600, 11025
40
DVI ADPCM
4
7200, 8000, 9600, 11025
80
A-law PCM
8
7200, 8000, 9600, 11025
81
u-law PCM
8
7200, 8000, 9600, 11025
The DCE returns the OK result code if DCE accepts this command, or it returns
the ERROR result code if any of the values are out of range.