Is ORTC still being implemented in the next version of WebRTC? I've read that ORTC needs a greatly simplified implementation (if you forget about all the other legacy stuff in WebRTC, such as support for the phone networks).
The currently drafted ORTC API still allows all of the power to the Javascript apps to interoperate with "legacy stuff", but it also allows the JS to bypass most of it.
(I'm a member of both the WebRTC Working Group and the ORTC Community Group)