I can confirm with you that currently we don’t support 3rd party app to register a SIP device using other protocols than the WSS. The non-supported protocols should be removed from the documentation though.
Thanks for answer @PhongVu .
The goal is not register SIP device actually. The goal is, to ensure LiveKit can INVITE RingCentral phone number into its room. (See: https://docs.livekit.io/sip/making-calls/)
Livekit requires a SipTrunk for the number it will use to make an outbound call. So we simply need an oubound sip trunk of the RingCentral phone number.
Twilio does support it, (see: https://docs.livekit.io/agents/quickstarts/outbound-calls/)
There is confusion about SIP trunk vs SIP client/device.
I believe the API is to create sip device/client, which is not a sip trunk.
If you need credentials for sip devices/client and you want TLS/TCP, you may refer to the readme file of https://github.com/ringcentral/ringcentral-softphone-ts?tab=readme-ov-file#where-to-get-credentials
Scroll down to the section with title: “where to get credentials”.
But again, this way you get credentials for SIP device. It may not work as a SIP trunk. You can try though.
Tyler
Perhaps we went down to a wrong road. Thus questions might be a bit confusing :).
The ultimate question is, how can we make a call from LiveKit on behalf of RingCentral phone number?
Here is a LiveKit + Twilio example: https://docs.livekit.io/sip/trunk-outbound/
I have confirmed with my colleagues that we don’t open SIP trunk to 3rd party developers.
If SIP trunk is the only way that livekit could work with existing telephony system, then there is no direct way to make livekit work with RingCentral.
Better redirect the question to livekit to let them clarify: is SIP trunk the only way that they support? What if SIP and media are handled by other library already? What is the way to integrate with livekit?
