RS-232 data link capabilities and documentation for EVO-ONE

Question

I have a technical question regarding the RS-232 data link functionality of the EVO-ONE device.

In the product description, EVO-ONE is specified as having:
“2 × 2-way datalink ports for data-to-data (RS-232) communication with compatible external devices such as smartphones and GPS telematic units.”

Could you please clarify the following points:

• Is it possible to connect custom / third-party devices to these RS-232 ports, or are they limited to officially supported external devices only?
• Is there any publicly available technical documentation or protocol specification describing the RS-232 interface (message format, baud rates, supported commands, etc.)?
• Can EVO-ONE operate as both a master and a slave on the RS-232 interface?
• Is it possible to read or modify EVO-ONE parameters via RS-232, or is the interface strictly read-only / data-forwarding?
• If configuration access via RS-232 is restricted, is this functionality available under NDA or partner programs?

I would appreciate any guidance on the supported use cases and the availability of documentation.