Manual

Smart Machine Smart Decision
SIM800 Series_AT Command Manual_V1.09 350 2015-08-03
19.3 Summary of Unsolicited Result Codes
URC Description AT Command
+CCWA:
<number>,<type>,<class>[,<a
lpha>]
Indication of a call that is currently
waiting and can be accepted.
AT+CCWA=1
+CLIP:
<number>,<type>,<subaddr>,
<satype>,<alphaId>,<CLI
validity>
The calling line identity (CLI) of the
calling party when receiving a mobile
terminated call.
AT+CLIP= 1
+CRING: <type>
Indicates incoming call to the TE if
extended format is enabled.
AT+CRC=1
+CREG: <stat>[,<lac>,<ci>]
There is a change in the MT network
registration status or a change of the
network cell.
AT+CREG=<n>
+CCWV
Shortly before the ACM (Accumulated
Call Meter) maximum value is reached.
The warning is issued approximately
when 5 seconds call time remains. It is
also issued when starting a call if less
than 5 s call time remains.
AT+CCWE=1
+CMTI: <mem3>,<index>
Indicates that new message has been
received.
AT+CNMI
<mt>=1
+CMTI:
<mem3>,<index>,"MMS
PUSH"
Indicates that new MMS message has
been received.
AT+CNMI
<mt>=1
+CMT:
<length><CR><LF><pdu>
Indicates that new message has been
received.
AT+CNMI
<mt>=2 (PDU
mode)
+CMT:
<oa>,<scts>[,<tooa>,<fo>,<pi
d>,<dcs>,<sca>,<tosca>,
<length>]<CR><LF><data>
Indicates that new message has been
received.
AT+CNMI
<mt>=2 (text
mode)
+CBM:
<length><CR><LF><pdu>
Indicates that new cell broadcast
message has been received.
AT+CNMI
<bm>=2 (PDU
mode enabled):
+CBM:
<sn>,<mid>,<dcs>,<page>,<p
ages><CR><LF><data>
Indicates that new cell broadcast
message has been received.
AT+CNMI
<bm>=2 (text
mode enabled):
+CDS:
<length><CR><LF><pdu>
Indicates that new SMS status report has
been received.
AT+CNMI
<ds>=1 (PDU
mode enabled):