Kodi - Kodi is an award winning free and open source media player that got its start on the Xbox console.
Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Emby - media server for personal streaming movies tv music photos in mobile app or browser for all devices android iOS windows phone appletv androidtv smarttv and dlna.
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
Serviio - Web on Big Screen. Serviio enables playback of online sources like RSS feeds, live streams or web site content so that you can listen to your favourite podcasts or watch latest TV programmes published online.
tSIP - tomeko.net/software: SIP client for Windows.