@tananaev Do you have any update on this?
I have this from the documentation, i'm trying to makes sense out of it
1.3.1 Mode of communication
The communication mode adopted by the protocol shall be in accordance with the relevant provisions in JT/T 794, and the communication protocol shall be based on TCP or UDP, platform.As the server side, the terminal acts as the client. When the data communication link is abnormal, the terminal can enter by SMS message Line communication.
Does traccar support BY-A6 protocol, I haven't seen anything in protocol list or if its with some other name.
Here is document for protocol https://send.firefox.com/download/00f503a4a9d12bab/#i7d9_koDRTRqiWCKSUPawg