SimCom SIM7500 Series User Manual

Smart Machine Smart Decision
SIM7500_SIM7600 Series_AT Command Manual_V1.07 2017-12-25
143
Defined values
<value>
Gain value from 0x0000-0x7fff, default value is not a fixed value. It varies with different versions.
Examples
AT+CECH=0x1234
OK
AT+CECH?
+CECH: 0x0200
OK
6.33 AT+CECDT Inhibit echo during doubletalk
Description
This command is used to adjust additional muting gain applied in DES during doubletalk. It modify
the DENS_gamma_e_dt 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 Responses
AT+ CECDT=? +CECDT: (list of supported <value>s)
OK
Read Command Responses
AT+ CECDT? +CECDT: <value>
OK
Write Command
Responses
AT+ CECDT=<value> OK
ERROR
Defined values
<value>
Gain value from 0x0000-0x7fff, default value is not a fixed value. It varies with different versions.
Examples
AT+CECDT=0x1234
SIMCOM CONFIDENTIAL FILE

SimCom SIM7500 Series Specifications

General

Brand	SimCom
Model	SIM7500 Series
Category	Control Unit
Language	English