HUAWEI MG323 GSM M2M Module

 

AT Command Interface Specification

Commands for Audio Control

15.1.2 Reading the Current Audio Channel

Read

AT^SWSPATH?

command

 

Function

Reads the current audio channel.

Response

z In case of successful execution:

 

<CR><LF>^SWSPATH: <n><CR><LF>

 

<CR><LF>OK<CR><LF>

zIn case of an error: <CR><LF>ERROR<CR><LF>

15.1.3Switching the Audio Channel

Write

AT^SWSPATH=<n>

command

 

Function

Switches the audio channel.

Response

z In case of successful execution: <CR><LF>OK<CR><LF>

 

z In case of an error: <CR><LF>ERROR<CR><LF>

 

z In case of an error related to the MT: <CR><LF> +CME ERROR:

 

<err><CR><LF>

Note:

The audio channel is kept in the channel that is used in the last call after the call ends. If the module is restarted, the audio channel will be reset to the first channel.

15.2AT+CMIC - Command for Adjusting the Microphone Gain Level

The AT+CMIC command adjusts the the mircophone gain level.

15.2.1 Querying the Supported Microphnoe Gain Levels

Test

AT+CMIC=?

command

 

Function

Queries the supported microphnoe gain levels.

Response

z In case of successful execution:

 

<CR><LF>+CMIC: (list of supported <level>s) <CR><LF>

 

<CR><LF>OK<CR><LF>

 

z In case of an error: <CR><LF>ERROR<CR><LF>

Issue 02 (2010-11-23)

Huawei Proprietary and Confidential

197

Copyright © Huawei Technologies Co., Ltd.

 

 

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Huawei MG323 Reading the Current Audio Channel, Switching the Audio Channel, Querying the Supported Microphnoe Gain Levels