Echopara-Set Echo Suppression Parameters; Command Syntax; Description; Defined Values - Huawei MU509 At Command Interface Specification

HUAWEI MU509 HSDPA LGA Module
AT Command Interface Specification
11.11 ^ECHOPARA–Set Echo Suppression Parameters

11.11.1 Command Syntax

Command
^ECHOPARA=<para>,
<value>
^ECHOPARA?
^ECHOPARA=?

11.11.2 Description

This command adjusts echo suppression parameters.
The SET command is used to set the echo suppression parameters.
The READ command is used to query the settings of the echo suppression
parameters.
The TEST command is used to return all configurable echo suppression parameters.

11.11.3 Defined Values

<para>: specifies the echo suppression parameter to set.
0: Gain of the first microphone amplifier
1: Gain of the codec during the sending process
<value>: specifies the value for the echo suppression parameter to set.
If <para> is set to 0, the available values for <value> are:
0: 0 dB
1: 24 dB (1 is the default value)
If <para> is set to 1, the available values for <value> are an integer ranging from 1 to
12. The gain increases with the value. The default value is 6.
This command can be executed only before calls. The parameters are restored to
their default values after the module is upgraded, but not after the module is restarted.
Issue 04 (2013-01-28)
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
<CR><LF>^ECHOPARA: <para>,<value>
[<CR><LF>^ECHOPARA: <para1>,<value1>
[<CR><LF>^ECHOPARA: <para2>,<value2>
...]]
<CR><LF><CR><LF>OK<CR><LF>
<CR><LF>^ECHOPARA: (list of supported
<para>s)<CR><LF><CR><LF>OK<CR><LF>
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