Hello, Valdimar ,
To fix the parking, it is necessary that the vehicle was 120 seconds without movement.
If the device, in principle, will not send messages for 300 seconds, then the trip will end forcibly and will be terminated accordingly.
With gprsmode 1, your device will send commands via UDP, with gprsmode 0, the device will send data via TCP. In this case, we are talking about the method of data transfer. As far as we know, for your device (Xexun TK 102) the ability to receive data via UDP is not integrated. Therefore, in principle, you can only use gprsmode 0.
We found this info here. by the link. – https://www.manualslib.com/manual/1184219/Xexun-Tk103-2.html?page=27