At+Cech Inhibit Far-End Echo - SimCom SIM7500 Series At Command Manual

AT+CRXVOL=<value>
Defined values
<value>
Gain value from 0x0000-0xffff, default value is not a fixed value. It varies with different versions.
Examples
AT+CRXVOL=0x1234
OK
AT+CRXVOL?
+CRXVOL: 0x3fd9
OK
6.32

AT+CECH Inhibit far-end echo

Description
This command is used to adjust additional muting gain applied in DES during far-end only. It
modify the DENS_gamma_e_high of TX_VOICE_SMECNS in DSP. The bigger the value, the
stronger the inhibition .This command only be used during call and don't save the parameter after
call.
SIM PIN References
NO Vendor
Syntax
Test Command
AT+CECH=?
Read Command
AT+CECH?
Write Command
AT+CECH=<value>
SIM7500_SIM7600 Series_AT Command Manual_V1.07
OK
ERROR
Responses
+CECH: (list of supported <value>s)
OK
Responses
+CECH: <value>
OK
Responses
OK
ERROR
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142 2017-12-25