I am having mulitple Teltonika tracker installed at multiple vehicles. I had setting up to send and receive GPRs commands to these tracker, also i had setup how to parse the GPRs commands from binary to codec 12 as mentioned in Teltonika WIKI.
Everything working fine. If i sent GPRs commands like: getinfo, getstatus, getver so i receive the accurate Answer from that particular device. But sometime i receive this response (“unknown command or invalid format”) from any device at my portal where i see sent and receive GPRs commands. Although i won’t send any commands to these tracker but i receive the GPRs response this.
Why i receive this response ?
Is this the response of some event that happened to these devices and the response is not properly decode?
Here i attached the screenshot for clarification