SimCom SIM7500 Series

Smart Machine Smart Decision
SIM7500_SIM7600 Series_AT Command Manual_V1.07 2017-12-25
144
OK
AT+CECDT?
+CECDT: 0x0100
OK
6.34 AT+CECWB Inhibit echo in the high band
Description
This command is used to adjust
the aggressiveness of EC in the high band (4 ~ 8 kHz). A higher
value is more aggressive and suppresses more high-band echo. Q-format - Q4.11WB_gamma_E =
2048 * gammaWhere gamma is in the range [0,15]. It modify the WB_gamma_e of
TX_VOICE_SMECNS in DSP. The bigger the value, the stronger the inhibition .T
his command
only be used during call and don’t save the parameter after call.
SIM PIN References
NO Vendor
Syntax
Test Command Responses
AT+ CECWB=?
+CECWB: (list of supported <value>s)
OK
Read Command Responses
AT+ CECWB? +CECWB: <value>
OK
Write Command
Responses
AT+ CECWB=<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+CECWB=0x1234
OK
AT+CECWB?
+CECWB: 0x0300
OK
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