Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 252 2012.12.10
AT+CMGS="[phone]xxx
x"
>This is a test <Ctrl+Z>
+CMGS:34
OK
Unsolicited notification of the
SMS arriving
+CMTI: "SM",1
Read SMS message that has
just arrived.
Note: the number should be
the same as that given in the
+CMTI notification.
AT+ CM GR = 1 +CMGR: "REC UNREAD",
"[phone]", "","02
/01/30,20:40:31+00"
This is a test
OK
Reading the message again
and change the status to
"READ” from ”UNREAD”
AT+ CM GR = 1 +CMGR: "REC READ",
"[phone]","",
"02/01/30,20:40:31+00"
This is a test
OK
Send another SMS to myself. AT+CMGS="[phone]xxx
x"
>Test again<Ctrl+Z>
+CMGS:35
OK
Unsolicited notification of the
SMS arriving
+CMTI: "SM",2
List all SMS messages.
Note:”ALL” must be in
uppercase.
AT+CMGL="ALL" +CMGL: 1, "REC
READ","[phone]",
"", "02/01/30,20:40:31+00"
This is a test
+CMGL: 2, "REC
UNREAD"," ",
"[phone]", ""
,"02/01/30,20:45:12+00"
Test again
OK
Delete an SMS message. AT+CMGD=1 OK
List all SMS messages to
show message has been
deleted.
AT+CMGL="ALL" +CMGL: 2, "REC READ",
"[phone]
089","","02/01/30,20:45:12+0
0"
Test again
OK