Specifications

AT Command Set
TC35-ATC-01-V02.10 Page 55/145 02.10 / 23.05.2001
4.7 AT+CCLK Real Time Clock
Test command
AT+CCLK=?
Response
OK
Read command
AT+CCLK?
Response
+CCLK: <time>
OK/ERROR/+CME ERROR
Parameter:
<time>: string type value; format is "yy/MM/dd,hh:mm:ss", where
characters indicate year (two last digits), month, day, hour,
minutes; e.g. 6
th
of May 1994, 22:10:00 hours equals to
“94/05/06,22:10:00"
Write command
AT+CCLK=<time>
Response
OK/ERROR/+CME ERROR
Parameter:
<time> see read command
Reference
GSM 07.07
Note
1. <time> is retained if the device enters the power-down mode via
AT^SMSO (pg. 120), and may be switched on via an alarm event (see
AT+CALA, pg. 48).
2. <time> is lost in the case of total power-disconnection (and no sepa-
rate battery back-up for the clock is provided via the ZIF-cable). In this
case the clock starts with <time> = “00/01/01,00:00:00” on next
power-up.
4.8 AT+CEER Extended error report
Test command
AT+CEER=?
Response
OK
Execute command
AT+CEER
TA returns an extended error report of the reason for the last call release
and location.
Response
+CEER: <location ID>, <reason > , <ss_release>OK
Parameter
<location ID> Location ID as number code (see subclause 7.5)
<reason> Reason for last call release as number code (see sub-
clause 7.6)
<ss_release> Release cause for last Supplementary Service Call
(see subclause 7.7)
Reference
GSM 07.07
Note
• AT+CEER is not avalable for data calls, please use ATS18=1.
• Default output in the case of a no-error-situation is +CEER: 0,0,0.