SimCom SIM5300E At Command Manual page 91

Parameters
SIM5300E AT Command Manual V1.02
+CBM: <length><CR><LF><pdu>
If <bm>=2 (text mode enabled):
+CBM: <sn>, <mid>, <dcs>, <page>, <pages><CR><LF><data>
3. Indicates that new SMS status report has been received
If <ds>=1 (PDU mode enabled):
+CDS: <length><CR><LF><pdu>
If <ds>=1 (text mode enabled):
+CDS: <fo>, <mr>[, <ra>][, <tora>], <scts>, <dt>, <st>
<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. TA-TE link
specific inband technique used to embed result codes and
data when TA is in on-line data mode.
<mt> (the rules for storing received SMs depend on its data coding
scheme (refer GSM 03.38 [2]), preferred memory storage (+CPMS) setting
and this value):
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 unsolicited result
code: +CMTI: <mem>,<index>
2 SMS-DELIVERs (except class 2) are routed directly to the TE
using
[<alpha>],<length><CR><LF><pdu> (PDU mode enabled) or
+CMT:
[<alpha>],<scts>[,<tooa>,<fo>,<pid>,<dcs>,<sca>,<tosca>,<len
gth>]<CR><LF><data> (text mode enabled; about parameters
in italics, refer Command Show Text Mode Parameters
+CSDH). Class 2 messages result in indication as defined in
<mt>=1.
3 Class 3 SMS-DELIVERs are routed directly to TE
unsolicited result code: +CMT:
<oa>,
80