Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 120 2012.12.10
syntax may be supported (e.g. correct routing of
messages with new Phase 2+ data coding schemes))
1 GSM 03.40 and 03.41 (the syntax of SMS AT
commands is compatible with GSM 07.05 Phase 2+
version; the requirement of <service> setting 1 is
mentioned under corresponding command descriptions)
<mt> Mobile Terminated Messages:
0 Type not supported
1 Type supported
<mo> Mobile Originated Messages:
0 Type not supported
1 Type supported
<bm> Broadcast Type Messages:
0 Type not supported
1 Type supported
Reference
GSM 07.05
Note
4.2.17 AT+CMGS="><index>" Send SMS Message by Index
AT+CMGS="><index>" Send SMS Message by Index
Parameter
<index> Index of phone number in current storage.
Response
TA sends message from a TE to the network (SMS-SUBMIT). Message
reference value <mr> is returned to the TE on successful message delivery.
Optionally (when +CSMS <service> value is 1 and network supports)
<scts> is returned. Values can be used to identify message upon unsolicited
delivery status report result code.
1) If text mode(+CMGF=1) and sending successful:
+CMGS: <mr>
OK
2) If PDU mode(+CMGF=0) and sending successful:
+CMGS: <mr>
OK
3)If error is related to ME functionality:
+CMS ERROR: <err>
Write Command
1) If text mode
(+CMGF=1):
+CMGS="><ind
ex>"
text is entered
<ctrl-Z/ESC>
ESC quits without
sending
2) If PDU mode
(+CMGF=0):
+CMGS="><ind
ex>"
text is entered
<ctrl-Z/ESC>
ESC quits without
sending
Parameter
<mr> GSM 03.40 TP-Message-Reference in integer format