Specifications

GT300 @Track Air Interface Protocol
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4.7. SOS Key Function
Command AT+GTSOS is used to configure the function of the SOS key. The SOS key has 3
working modes if it is pressed and held for 3 seconds.
— By setting the parameter <mode> = 1, the terminal only makes the SOS call.
— By setting the parameter <mode> = 2, the terminal only sends its current position to the
backend server by message +RESP:GTSOS.
— By setting the parameter <mode> = 3, the terminal makes the SOS call first and then sends
the current position to the backend server by message +RESP:GTSOS.
If the „send last position‟ set to 1 and the working mode is 2 or 3, the device will send the last
known GPS position to the backend server before making the SOS call or sending the current
position.
Example 1:
To disable the SOS key function, configure the terminal with the following command:
AT+GTSOS=gt300,0,,+7911888888,0006
This will disable the function of SOS key. User can still access SOS number via GUI menu.
Example 2:
To set the SOS key to only make the SOS phone call, configure the terminal with the following
command:
AT+GTSOS=gt300,1,,+7911888888,0006
Example 3:
To set the SOS key to send position only, configure the terminal with the following command:
AT+GTSOS=gt300,2,,+7911888888,0006
In this mode, the terminal will vibrate once to notify the user the function is triggered.
Example 4:
To set the SOS key to make the SOS phone call and send its position, configure the terminal with
the following command:
AT+GTSOS=gt300,3,,+7911888888,0006
Example5:
To set the SOS key to send the last position before making the SOS phone call and send its current
position, configure the terminal with the following command:
AT+GTSOS=gt300,3,1,+7911888888,0006
The configuration is done when the backend server receives the following message:
+ACK:GTSOS,135790246811220,0006,20090112104725,000A,0102070202
The terminal sends its position information to the backend server by message +RESP:GTSOS.