Neo_WM620 WCDMA Module AT Command Set
Copyright © Neoway Technology Co., Ltd
30
AT+MICL?
+MICL:3
OK
Query the current level of the MIC
volume.
AT+MICL=?
+MICL: (0-6)
OK
Query the value range of MIC volume.
Remarks
The setting of this command is not saved after the module is powered off.
4.11 Echo Control: +ECHO
Description
To enable, disable, and modify the echo cancellation function during a call
Format
AT+ECHO=<mode><CR>
AT+ECHO?<CR>
AT+ECHO=?<CR>
Parameter
<mode>: 0 to 6
0
Vocoder Echo Cancellation Off
1
Ear Seal Echo Cancellation
2
Head Set Echo Cancellation
3
AEC
4
Speaker Echo Cancellation for car kit operation
5
Bluetooth earphone Echo Cancellation (not supported)
6
Default Echo Cancellation for current path settings
Return
Value
<CR><LF>OK<CR><LF>
<CR><LF>+ECHO: <mode><CR><LF>
<CR><LF>OK<CR><LF>
<CR><LF>+ECHO: (0-6)<CR><LF>
<CR><LF>OK<CR><LF>
<CR><LF>ERROR<CR><LF>
Example
AT+ECHO=0
OK
Disable the echo cancellation
function.
AT+ECHO=8
ERROR
The command is incorrect. The value
set is beyond the parameter value
range.
AT+ECHO?
+ECHO: 0
OK
Query the current settings.
