HUAWEI MG323 GSM M2M Module

 

AT Command Interface Specification

Commands for Audio Control

15.4.2 Reading the Current Speaker Volume

Read

AT+CLVL?

command

 

Function

Reads the current speaker volume.

Response

z In case of successful execution:

 

<CR><LF>+CLVL: <n><CR><LF>

 

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

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

15.4.3Setting the Speaker Volume

Write

AT+CLVL=<n>

command

 

Function

Sets the speaker volume.

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:

zThis command applies to both audio channels. You can set the volume level to 1, 2, 3, 4, or 5 before or during a call and the setting remains effective even after the module is powered off. You can set the volume level to 0 to mute the speaker only during a call. After the call ends, the speaker volume is restored to the volume level before the speaker is muted.

15.5AT+CMUT - Command for Muting and Unmuting the Microphone

The AT+CMUT command is used to mute and unmute the microphone.

Issue 02 (2010-11-23)

Huawei Proprietary and Confidential

201

Copyright © Huawei Technologies Co., Ltd.

 

 

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Huawei MG323 15.5 AT+CMUT Command for Muting and Unmuting the Microphone, Reading the Current Speaker Volume, At+Clvl?