WebRTC stable and trunk version /Engine/Source/ThirdParty/WebRTC/ 2016-06-16T14:09:57.3865269-04:00 Real-time communicate with XMPP server Required for social features in all of our games as well the Launcher http://www.webrtc.org/license-rights Licensees Git P4 /Engine/Source/ThirdParty/Licenses/WebRTC_License.txt