Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 322 Ver. 1.00 – 10/29/2008
4.11. Network Identity and Time Zone
Commands
4.11.1. AT$RTCUPD Update RTC with NITZ
Command Function This command allows the user to
enable/disable setting of the RTC time with
either UTC or local time received in the
NITZ.
Command Functional Enfora Specific
Group
Command Format Query AT$RTCUPD=?
Response $RTCUPD: (0..2)
OK
Write Format AT$RTCUPD =<mode>,< reset >
Response OK
Read Format AT$RTCUPD?
Response $RTCUPD: <mode>,<update>
OK
Execution Format N/A
Response N/A
Parameter Values
<reset> 0 Do not reset $RTCUPD <update>
parameter
1 Reset $RTCUPD <update> parameter to
0
< mode > 0 disables updating the RTC.
1 enables updating the RTC to UTC time
2 Enables updating RTC to local time
(based on the TZ in the NITZ)
<update> 0 RTC has not been updated
1 RTC has been updated