Im primarily curious if it supports terminating the same data to multiple endpoints. Facebook and other centralized chat servers do that. That functionality guarantees that regardless which machine is logged in, I can get my messages.
I know that recent TOR chat server doesnt. There's a GH issue open to "try to deal with it", with no comments.
I also know that Tox doesn't support the same key with multiple endpoints. That too defeats my purpose of having it on my phone and laptop: I then have to have a new "contact" per device, which easily balloons out of control.
Edit: Am on freenode's irc #ring . They seem asleep. No comments, positive or negative.