Send positions to Telematics?

Monica We can implement any HTTP API the similar as direct communication protocol of tracking devices.
But we need full description of this API (which part will be establish the connection -- usually it's our part, the details of authorization, the detailed JSON description).
If you have to implement such API please ask your Wialon provider, including such technical documentation and details about your project.

Monica, what yavi  explained is not your or your team duty, you should pass the documents to (or write it for) GT hardware team and they will implement the new protocol for you.
BTW, such kind of tasks should be requested by local Wialon provider in your region. Please pass all you have to the local Wialon provider and they know how to follow your case and support you in cooperation with GT.

Monica

Check this link https://gurtam.com/en/gps-hardware.

Here is a list of supported GPS devices and some protocols from some other platforms, maybe there is already a compatible protocol with the other GPS provider.

Another options would be for you to implement a API to recieve the positions form your customer and then translate the data to a supported protocol.