Neo_WM620 WCDMA Module AT Command Set
Copyright © Neoway Technology Co., Ltd
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4.8 Handfree Switch: +HANDFREE
Description
To control the handfree mode of a voice call
Format
AT+HANDFREE=<value> <CR>
AT+HANDFREE? <CR>
Parameter
<value>: Integer
0: Earphone mode
1: Handfree mode, always valid if the module is not powered off or switched to other
modes
2: Handfree mode, only valid for the current call. It will switch to the earphone mode after
the call ends.
Return
Value
<CR><LF> +HANDFREE:0<CR><LF>
<CR><LF> OK<CR><LF>
Example
AT+HANDFREE=0
OK
Set to the earphone mode.
AT+HANDFREE=1
OK
Set to the handfree mode.
AT+HANDFREE?
+HANDFREE:0
OK
The current mode is earphone mode.
Remarks
Earphone mode by default.
4.9 Starting the DTMF Detection: +DTMFDETECT
Description
To start the DTMF detection during a call
Format
AT+DTMFDETECT=<value><CR>
Parameter
<value>: Integer
0: Stop DTMF detection
1: Start DTMF detection
Return
Value
<CR><LF> +DTMF:DETECT START OK<CR><LF>
<CR><LF> +DTMF:DETECT STOP OK <CR><LF>
<CR><LF> +DTMF:DETECT ALREADY STARTED <CR><LF>
<CR><LF> +DTMF:OPERATION NOT ALLOWED <CR><LF>
Example
AT+DTMFDETECT=1
+DTMF:DETECT START OK
Start the DTMF detection.
AT+ DTMFDETECT=0
+DTMF:DETECT STOP OK
Stop the DTMF detection.