Siemens MC35 - Manual (Page 208)

AT Command Set
MC35_ATC_01_V03.02 Page 208 of 228 13.03.2002
9.1.4 Summary of Unsolicited Result Codes (URC)
A URC is a report message sent from the ME to the TE. An unsolicited result code can either be deliv-
ered automatically when an event occurs or as a result of a query the ME received before. However, a
URC is not issued as a direct response to an executed AT command.
When sending a URC the ME activates its Ring Line (Logic "0"), i.e. the line goes active low for 1 sec-
ond.
Typical URCs may be information about incoming calls, received SMS, changing temperature, status
of the battery etc. A summary of all URCs is listed below.
For each of these messages, you can configure the ME whether or not to send an unsolicited result
code. Remember that the presentation mode of URCs will be reset to the default values
• when you power down the GSM engine, e.g. with AT^SMSO or when disconnecting power supply,
• when you reset the engine with AT+CFUN=1,1
• when you restore the factory settings with AT&F.
To take advantage of the messages, you need to activate the desired URC every time you reboot the
GSM engine or have the parameters included in the user profile saved with AT&W. If you do so, take
into account that the two URCs ^SBC and ^SCTM cannot be saved with the user profile and, thus,
need to be reactivated when needed after reboot.
The URCs SYSSTART, SYSSTART CHARGE-ONLY MODE and SYSSTART ALARM MODE are not
user definable.
Message Meaning How to activate
URC
+CCCM: Current call meter value AT^CACM=1
+CREG: [,,] Registration to ME network changed AT+CREG=1 or
AT+CREG=2
+CRING: Indication of an incoming call AT+CRC=1
+CLIP: , Telephone number of caller AT+CLIP=1
+CMTI:, Indication of a new short message (text
and PDU mode) AT+CNMI=1,1
+CMT:, Short message is output directly to the
TE (in PDU mode) Example:
AT+CNMI=1,2
+CMT:,,[,,,
,,,,
] Short message is output directly to the
TE (in text mode) Example:
AT+CNMI=1,2
+CBM:,,,,
Cell broadcast message is output directly
to the TE (in text mode) Example:
AT+CNMI=1,0,2
+CBM: Cell broadcast message is output directly
to the TE (in PDU mode) Examples:
AT+CNMI=1,0,2
+CDS:
+CDS: ,,[],[],
,
SMS status report routed directly to TE
(in PDU mode)
SMS status report routed directly to TE
(in text mode) Example:
AT+CNMI=1,0,0,1
+CDSI: , SMS status report routed ME/TA. Can be
queried from the memory with location
index number (text and PDU mode) Example:
AT+CNMI=1,0,0,2
+CSSI:
+CSSU: Supplementary service intermedi-
ate/unsolicited result code AT+CSSN=1,1
^SMGO: SMS overflow indicator AT^SMGO=1
^SCKS: Indicates whether card has been re-
moved or inserted AT^SCKS=1