Data Sheet

Smart Machine Smart Decision
+DTMF:2
+DTMF:3
+DTMF:4
enable DTMF detection AT+DDET=1,1000,1
//start DDET, interval
is 1000ms, report
OK
mode is 1
Set up a call connection ATD***********; OK
If module detected DTMF,
URC will be reported via
serial port, the minimal
interval between two identic
DTMF is 1000ms.
+DTMF:1,160
//report DTMF value
and last time
+DTMF:2,300
+DTMF:3,200
Receive an incoming call ATA OK
If module detected DTMF,
URC will be reported via
serial port
+DTMF:1,160
//report DTMF value
and last time
+DTMF:2,300
+DTMF:3,200
20.17 RECORD Commands
Demonstration Syntax Expect Result
Start record AT+CREC=1,1,0 OK
//start record // the record id is 1, format is
AMR
Stop record AT+CREC=2 OK
SIM800 Series_AT Command Manual_V1.05 358 2014-07-31