GLOBALSAT TR-151 - Manual (Page 46)

2.5.3 How to make TR-151 to do Voice monitor function by SMS?
You can send a SMS by a mobile phone to ask TR-151 start the voice monitoring.
The format of SMS is following as:
?6,IMEI,Return_Phone_Number!
The table below explains the content of the SMS
Format Description
? Start sign
6 Function code
IMEI IMEI code of the TR-151
Return_Phone_Number The phone number for TR-151 to call back and transmit the sounds.
! End sign
Note: If return phone number is empty, TR-151 will call back to Caller ID
TR-151 will send an SMS whose format is“?6,IMEI,OK!” to the return phone number to
confirm it has received the request. And then it will start to call back to the returned number
written in the SMS. And then you can listen to the sound or voice around TR-151.
Example:
You send voice command and make TR-151 call back to 626123456
?6,355632000166323,626123456!
Stop voice monitoring:
You can hang up the phone call to stop voice monitoring.
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