Specifications

AT Command Set for L55 Platform 2003-11-21
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2.3.12.4 AT+BVRA (Handsfree Profile)
AT+BVRA Voice Recognition Activation
Test command
AT+BVRA=?
Response
OK
Write command
AT+BVRA=<vrec>
Response
OK/ERROR/+CME ERROR
Parameter
<vrec>
0
1
Disable Voice Recognition
Enable Voice Recognition
Unsolicited message
+BVRA: <vrec>
2.3.12.5 AT+NREC (Handsfree Profile)
AT+NREC Noise Reduction and Echo Canceling
Test command
AT+NREC=?
Response
OK
Write command
AT+NREC=<vrec>
Response
OK/ERROR/+CME ERROR
Parameter
<nrec>
0
1
Disable Noise Reduction and Echo Cancellation
Enable Noise Reduction and Echo Cancellation