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Vsm - compression method selection, Syntax, Defined values – Longshine LCS-8056C2 User Manual

Page 148: Reporting current or selected values, Reporting supported range of parameter values

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Commands for Host-Processed Modems Reference Manual

5-16

Conexant

100498E

+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=,,,

Defined Values

Decimal number identifying the compression method.

containing the supported range of voice samples
per second of the analog signal.

containing the supported range of sensitivity
settings for voice receives.

containing the supported range of expansion
values for voice transmits.

Reporting Current or Selected Values

Command: +VSM?

Response: +VSM: ,,,

Example:

+VSM: 130,UNSIGNED PCM,8,0,127,0

Reporting Supported Range of Parameter Values

Command: +VSM=?

Response: +VSM: , , , ,,,

Decimal number identifying the compression method (1, 128 to
133).

Alphanumeric string describing the compression method
(UNSIGNED PCM, 8-BIT LINEAR, ADPCM, ULAW, ALAW,
or LINEAR).

Decimal number defining the average number of bits in the
compressed sample not including silence compression (4, 8, or 16).

Decimal number (0) reporting the time interval, in units of 0.1
second, between timing marks. A value of 0 reports that timing
marks are not supported.

containing the supported range of voice samples
per second of the analog signal (7200 or 8000).

containing the supported range of sensitivity
settings for voice receives (0).

containing the supported range of expansion
values for voice transmits (0).