9
Note: the default value is empty, if the function numbers are less than three while setting, it must
be added “,” to avoid setting failure. To clear the combination of monitor numbers directly sending
0000,A72
(If this function can’t be achieved, please add your Country and Area Code before your phone
number when you set the preauthorized numbers, or you can also consult your local mobile
operator.)
4.4.
Smart Sleep Mode – A73
This command enables the sleep mode function. In this mode, logging, timing and location are all
disabled.
The Content of Mobile Phone SMS:
0000,A73,sleep levels
Sent to the embedded SIM card numbers.
MT90 automatic reply SMS:
IMEI,A73,OK
Prompt successfully.
To restart the Log or regular position, you must first cancel the sleep mode.
Note:
X=0, turn off sleep mode (default)
X=1, normal sleep. GSM module work, GPS module work by sleep mode intermittently. The
device can work 25% longer than no sleep mode. Note: this is not recommended for users who set
“track by interval” or short time interval, because it will affect the completeness of tracking.
X=2, deep sleep, the tracker will enter this mode after it is inactive or stationary(No SOS/any
triggered by the button/input/incoming calls/message) for 5 minutes. GPS module stops working
and GSM module enters sleep mode. The tracker remains in this mode until it is activated by
SOS/any triggered by the button/input/incoming calls/message. After that, it will repeat above
processes.
Note: MT90 can enter sleep mode under movement , and movement can't wake MT90 from sleep
mode.
In any condition, the device will directly quit the sleep mode and back to normal working
mode by SMS or GPRS command to turn off the sleep mode.
4.5.
Time Zone – B35
This command modifies the SMS report to display the correct local time. Default Beijing time,
GMT480.
Please follow below instructions for time zone modification.
The Content of Mobile Phone SMS:
0000,B35,480
Sent to the embedded SIM card numbers.
MT90 Automatic Reply SMS:
IMEI,B35,OK
Set the time zone successfully.
