If you want to help make Free Real-time Communication (RTC) with free, open source software surpass proprietary solutions this year, a great place to start is the FOSDEM RTC dev-room.
On Friday we published the list of 17 talks accepted in the dev-room (times are still provisional until the FOSDEM schedule is printed). They include a range of topics, including SIP, XMPP, WebRTC and peer-to-peer Real-time communication.
RTC will be very prominent at FOSDEM this year with several talks on this topic, including my own, in the main track.