Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 132 23.06.2010
Response
OK
ERROR
If error is related to ME functionality:
+CME ERROR: <err>
Unsolicited result code
+CEXTBUT: <mode>,<headset button press>
Write Command
AT+CEXTBUT=
<mode>
Parameters
<mode> a numeric parameter which indicates whether an
unsolicited event code (indicating whether the
headset button has been pressed) should be sent to
the terminal.
0 not send unsolicited event code
1 send unsolicited event code
< headset button press >
a numeric parameter which indicates whether a
headset button has been pressed or not
0 not pressed
1 pressed
Reference Note
For this command, please refer to actual model.
6.2.14 AT+CSMINS SIM Inserted Status Reporting
AT+CSMINS SIM Inserted Status Reporting
Response
+CSMINS: (list of supported <n>s)
OK
Test Command
AT+CSMINS=?
Parameters
See Write Command
Response
+CSMINS: <n>,<SIM inserted>
OK
Read Command
AT+CSMINS?
Parameters
See Write Command
Write Command
AT+CSMINS=<
n>
Response
OK
ERROR
If error is related to ME functionality:
+CME ERROR: <err>