Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 143 23.06.2010
Response:
+CMGDA: (list of supported <type>s)
OK
+CMS ERROR: <err>
Test Command
AT+CMGDA=?
Parameter
see Write Command
Response:
OK
ERROR
+CMS ERROR: <err>
Write Command
AT+CMGDA=<t
ype>
Parameter
<type>
1) If text mode:
“DEL READ” delete all read messages
“DEL UNREAD” delete all unread messages
“DEL SENT” delete all sent SMS
“DEL UNSENT” delete all unsent SMS
“DEL INBOX” delete all received SMS
“DEL ALL” delete all SMS
2) If PDU mode :
1 delete all read messages
2 delete all unread messages
3 delete all sent SMS
4 delete all unsent SMS
5 delete all received SMS
6 delete all SMS
Reference Note
6.2.30 AT+STTONE SIM Toolkit Play Tone Command
AT+STTONE SIM Toolkit Play Tone Command
Test Command
AT+STTONE=?
Response
+STTONE: (list of supported <mode>s),(list of supported <tone>s), (list of
supported <duration>s)
OK
+CME ERROR: <err>
Write Command
AT+STTONE=<
mode>,<tone>,<
Response
OK
+CME ERROR: <err>