SimCom SIM7500 Series User Manual

Smart Machine Smart Decision
SIM7500_SIM7600 Series_AT Command Manual_V1.07 2017-12-25
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Read Command
Responses
AT+ CTXMICGAIN? +CTXMICGAIN: <mode>,<value>
OK
Write Command
Responses
AT+CTXMICGAIN=<mode
>,<value>
OK
ERROR
Defined values
<mode>
mode value from 0-1, default value is not a fixed value. It varies with different versions.
<value>
gain value from 0x0000-0xffff, default value is not a fixed value. It varies with different versions.
Examples
AT+CTXMICGAIN=1,0x1234
OK
AT+CTXMICGAIN?
+ CTXMICGAIN: 1,0x2000
OK
6.31 AT+CRXVOL Adjust RX voice output speaker volume
Description
This command is used to adjust digital Volume of output signal after speech decoder, before
summation of sidetone and DAC. It modify the RX_VOICE_SPK_GAIN in DSP. This command
only be used during call and don’t save the parameter after call.
SIM PIN References
NO
Vendor
Syntax
Test Command Responses
AT+ CRXVOL=? +CRXVOL: (list of supported <value>s)
OK
Read Command Responses
AT+ CRXVOL? +CRXVOL: <value>
OK
Write Command Responses
SIMCOM CONFIDENTIAL FILE

SimCom SIM7500 Series Specifications

General

Brand	SimCom
Model	SIM7500 Series
Category	Control Unit
Language	English