In the SMS, the values after “lat” is the latitude, the values after “lng” is the longitude.
*Meitrack Manager and SMS command. The default password is 0000. The password can be changed through Meitrack
Manager and SMS command. The MT90 will only accept commands from a user with the correct password and report the SMS
report to the user. If an authorized phone number was set, only this phone number can receive SMS reports. The common
format of an SMS command is: Password,Command,Parameter.
7.2 SOS –A71
This command is used to set the SOS number. When you call the phone number, an SMS report about the location and other
SMS functions will also be received.
SMS text:
0000,A71,Function number 1,Function number 2,Function number 3.
Send the text to the embedded SIM card phone number.
Tip: “,” should be an English comma and no space exists before and after the comma.
The MT90 automatically replies to an SMS: IMEI,A71,OK. It indiates that the SOS number is set successfully.
When you press the SOS button, the MT90 will dial three authorized phone numbers. It will stop dialing when one phone
number answers.
Note: The preauthorized phone numebrs are blank by default. The set phone numbers must be seperated by comma (“,”)
to avoid setting failures. No comma is required next to the last phone number. For example:
0000,A71,13500000000,,
0000,A71,13500000000,13600000000,
0000,A71,13500000000,13600000000,13700000000
Responding: 353358017784062,A71,OK
To clear all function numbers, send 0000,A71.
If this function cannot be achieved, please add your Country and Area Code before your phone number when you set the
preauthorized phone numbers, or consult your local mobile operator.)
7.3 Listening-in –A72
The command is used to listen in to the surrounding environment. After the setting, the device is allowed to confidentially and
automatically answer a phone and enters listen-in state for one-way communication.
Note: If Auto Answer Incoming Call and Monitor are set for a same phone number, only Auto Answer Incoming Call takes
