Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 89 2012.12.10
“AT+CFUN=0,0,1” or “AT+CFUN=4,0,1” is inputted. The
<final_cfun_status > is implemented to help customer reset the radio
quickly.
3.2.47 AT+CCLK Clock
AT+CCLK Clock
Test Command
AT+CCLK=?
Response
OK
Response
+CCLK: <time>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CCLK?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CCLK=<tim
e>
Parameter
<time> String type(string should be included in quotation marks)
value; format is "yy/MM/dd,hh:mm:ss±zz", where characters
indicate year (two last digits),month, day, hour, minutes,
seconds and time zone (indicates the difference, expressed in
quarters of an hour, between the local time and GMT; range
-47...+48). E.g. 6th of May 2010, 00:01:52 GMT+2 hours
equals to "10/05/06,00:01:52+08"
Reference
GSM 07.07 [13]
Note
3.2.48 AT+CSIM Generic SIM Access
AT+CSIM Generic SIM Access
Test Command
AT+CSIM=?
Response
OK
Write Command
AT+CSIM=<leng
Response
+CSIM: <length>,<response>