User's Manual

TR-151A page 30
4.4 How to set TR-151A to immediately report its position by
GPRS?
Users can send an SMS by mobile phone to ask TR-151A to immediately report its position via
GPRS network to TR-151A call center or GPRS server.
The format of SMS is following as:
?8,IMEI,Return_Phone_Number!
The table below explains the content of the SMS.
The description of SMS
Format Description
?8 Start sign and function code
IMEI IMEI of TR-151A
Return_Phone_Number The phone number for receiving OK message.
! End sign
TR-151A will send an SMS whose format is “?8,IMEI,OK!” to the return phone number to confirm
it has received the request. And then it will start to get fixed the position. After getting fixed the
position, it will send its location to the TR-151A call center or GPRS server.
Example: Require GPRS immediate report sent to 626-123456
You have to enter “?8,355632000166323,626123456!”
And then you will get “? 8,355632000166323,OK!”