HE863 family AT commands reference guide
80377ST10083a Rev.6 – 2012-11-12
Reproduction forbidden without written authorization from Telit Communications S.p.A.- All Rights Reserved.
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3.5.4.3.
Message Receiving And Reading
3.5.4.3.1.
New Message Indications To Terminal Equipment - +CNMI
+CNMI - New Message Indications To Terminal Equipment
AT+CNMI=[
<mode>[,<mt>
[,<bm>[,<ds>
[,<bfr>]]]]]
Set command selects the procedure, how receiving of new messages from the
network is indicated to the TE when TE is active.
Parameter:
<mode>
- unsolicited result codes buffering option
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.
Note: It is possible that ME/TA result code buffer is in volatile memory. In this case
messages may get lost if the power of ME/TA is switched off before codes are
sent to TE. Thus, it is not recommended to use direct message routing
(
<mt>
=2 or 3,
<bm>
=2 or 3, or <ds>=1) with
<mode>
value 0 or 2.
<mt>
- result code indication reporting for SMS-DELIVER
Note: the rules for storing received SMs depend on its data coding scheme (refer
3GPP TS 23.038 [2]), preferred memory storage (+CPMS) setting and this value;
refer table 1.
Note: If AT command interface is acting as the only display device, the ME must
support storing of class 0 messages and messages in the message waiting indication
group (discard message); refer table 2).
0 - No SMS-DELIVER indications are routed to the TE.
1 - If SMS-DELIVER is stored into ME/TA, indication of the memory location is
routed to the TE using the following unsolicited result code:
+CMTI: <mem1>,<index>
where:
<mem1>
- memory storage where the new message is stored
"SM"
"ME"
<index>
- location on the memory where SMS is stored.
2 - SMS-DELIVERs (except class 2 messages and messages in the message
waiting indication group) are routed directly to the TE using the following
unsolicited result code:
(PDU Mode)
+CMT: <alpha>,<length><CR><LF><pdu>
where:
<alpha>
- alphanumeric representation of originator/destination number
corresponding to the entry found in MT phonebook; used
character set should be the one selected with cCSCS.
