SimCom SIM7500 Series User Manual

Smart Machine Smart Decision
SIM7500_SIM7600 Series_AT Command Manual_V1.07 2017-12-25
104
Examples
AT+CEREG?
+ CEREG: 0,4
OK
5.17 AT+CTZU Automatic time and time zone update
Description
This command is used to enable and disable automatic time and time zone update via NITZ
SIM PIN References
YES 3GPP TS 27.007
Syntax
Test Command Responses
AT+CTZU=? +CTZU: (list of supported <on/off>s)
OK
Read Command Responses
AT+CTZU? +CTZU: < on/off >
OK
Write Command
Responses
AT+CTZU=< on/off > OK
ERROR
Defined values
<on/off>
Integer type value indicating:
0 – Disable automatic time zone update via NITZ (default).
1 – Enable automatic time zone update via NITZ.
NOTE: 1. The value of < on/off > is nonvolatile, and factory value is 0.
2. For automatic time and time zone update is enabled (+CTZU=1):
If time zone is only received from network and it isn’
t equal to local time zone
(AT+CCLK
), time zone is updated automatically, and real time clock is updated based
on local time and the difference between time zone from network and local time zone
(Local time zone must be valid).
If Universal Time and time zone are received from network, both time zone and real
time clock is updated automatically, and real time clock is based on Universal Time and
time zone from network.
SIMCOM CONFIDENTIAL FILE

SimCom SIM7500 Series Specifications

General

Brand	SimCom
Model	SIM7500 Series
Category	Control Unit
Language	English