Data Sheet

Smart Machine Smart Decision
16 AT Commands for DDET Application
DTMF detection can be set or activated by DDET command.
16.1 Overview
Command Description
AT+DDET DTMF detection control
16.2 Detailed Descriptions of Commands
16.2.1 AT+DDET DTMF Detection Control
AT+DDET DTMF Detection Control
Response
+DDET: (0,1),(0-10000),(0,1),(0,1)
OK
Test Command
AT+DDET=?
Parameters
See Write Command
Response
+DDET: <mode>,<interval>,<reportMode>,<ssdet>
OK
Read Command
AT+DDET?
Parameters
See Write Command
Response
OK
ERROR
Write Command
AT+DDET=<mo
de>[,<interval>][
,<reportMode>][
Unsolicited Result Code
,<ssdet>]
1)If <reoportMode> is set to 0
+DTMF: <key>
2)If <reportMode> is set to 1
+DTMF: <key>,<last time>
SIM800 Series_AT Command Manual_V1.05 323 2014-07-31