Product data

USRobotics
Command Reference
Voice Commands - 141
Reporting Current or Selected Values
Command: +VSD?
Response: +VSD: <sds>,<sdi>
Example: +VSD: 128, 50 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VSD=?
Response: +VSD: (<sds> range),(<sdi> range)
Example: +VSD: (0,127,128,129),(0-255)
Result Codes
OK <hook> = 0 or 1.
ERROR Otherwise, or if not in Voice Mode.
+VSM - Compression Method Selection
This command causes the modem to set the voice compression method, the
silence compression sensitivity, and the voice sampling rate.
Syntax
+VSM=<cml>,<vsr>,<sds>,<sel>
Defined Values
<cml> Decimal number identifying the compression method.
<vsr> <range of values> containing the supported range of voice
samples per second of the analog signal.
<scs> <range of values> containing the supported range of sensitivity
settings for voice receives.
<sel> <range of values> containing the supported range of expansion
values for voice transmits.
Reporting Current or Selected Values
Command: +VSM?
Response: +VSM: <cml>,<vsr>,<sds>, <sel>
Example: +VSM: 130,UNSIGNED PCM,8,0,127,0