Provide method and event handler to send INFO request and handle incoming INFO request

[Wildsoft]

It will be allow convinient way for communication between SIP server and LiveKit agent handling call.
Ir should allow specyfing Content Type and INFO payload (transfered as body)
Thank you.

[dennwc]

Hey @Wildsoft ! Could you elaborate on why you think it would be useful for agents?

[Wildsoft]

Hi @dennwc ,
Our solution uses a media server to handle user interactions. We control the media server via MSML (https://datatracker.ietf.org/doc/html/rfc5707), which uses bidirectional SIP INFO both to send requests and to receive events. Currently, we are transitioning to Livekit, but we intend to continue using SIP INFO as our transport mechanism—not only to receive events from the voice agent but also to influence its logic. We believe that the scenario in which a product migrates from a traditional media server to Livekit is quite common, and enabling INFO support will be instrumental in accelerating the transition.