Mastodawn

Isn't it terrible when one needs to be grateful for #Google?

Working backwards, it appears the general portion of #XMPP extensions (#XEP) most-likely involved in any client managing mult stream multimedia includes #XEP0166 - #Jingle. - https://xmpp.org/extensions/#xep-0166-implementations

#Dino is partway there.

I do not have the chops for erlang/elixir. But there are a number of projects working on getting to usable.

& saw other discussions about an XMPP<->SIP 'unified signalling protocol" theory.

Specifications | XMPP - The universal messaging standard

The core specifications for XMPP are developed at the Internet Engineering Task Force (IETF). The XSF develops extensions to XMPP through a lightweight standards process centered around XMPP Extension Protocols (XEPs). XMPP RFCs RFC 6120 XMPP Core …