Also 'the more federation and interoperability the better' is kind of contradictory to constantly reinventing extisting Internet Standards. I suspect VoIP over Matrix is not compatible with SIP or XMPP A/V calls and looking at current state of the matrix.org XMPP chat implementation they probably will never be.
Also 'the more federation and interoperability the better' is kind of contradictory to constantly reinventing extisting Internet Standards. I suspect VoIP over Matrix is not compatible with SIP or XMPP A/V calls and looking at current state of the matrix.org XMPP chat implementation they probably will never be.