Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 111 2012.12.10
in integer format (when first character of <da> is + (IRA 43)
default is 145, otherwise default is 129)
<mr> GSM 03.40 TP-Message-Reference in integer format
Reference
GSM 07.05
Note
4.2.8 AT+CNMI New SMS Message Indications
AT+CNMI New SMS Message Indications
Response
+CNMI: (list of supported <mode>s),(list of supported <mt>s),(list of
supported <bm>s),(list of supported <ds>s),(list of supported <bfr>s)
OK
Test Command
AT+CNMI=?
Parameters
See Write Command
Response
+CNMI: <mode>,<mt>,<bm>,<ds>,<bfr>
OK
Read Command
AT+CNMI?
Parameters
See Write Command
Response
TA selects the procedure for how the receiving of new messages from the
network is indicated to the TE when TE is active, e.g. DTR signal is ON. If
TE is inactive (e.g. DTR signal is OFF), message receiving should be done
as specified in GSM 03.38.
OK
ERROR
Write Command
AT+CNMI=<mo
de>[,<mt>[,<bm
>[,<ds>[,<bfr>]]]
]
Parameters
<mode> 0 Buffer unsolicited result codes in the TA. If TA result
code buffer is full, indications can be buffered in some
other place or the oldest indications may be discarded
and replaced with the new received indications.
1 Discard indication and reject new received message
unsolicited result codes when TA-TE link is reserved
(e.g. in on-line data mode). Otherwise forward them
directly to the TE.
2 Buffer unsolicited result codes in the TA when TA-TE
link is reserved (e.g. in on-line data mode) and flush
them to the TE after reservation. Otherwise forward
them directly to the TE.
3 Forward unsolicited result codes directly to the TE.