A setback to VoIP and Video telephony adoption has been the restriction NATs and firewalls pose to reliable call completion.
Eyeball Networks and Google are working together to enhance the STUN, TURN, and ICE standards as part of the WebRTC project.
The increase of online social communities & other collaborative applications requiring presence & messaging functionality has seen a rise in the use of XMPP services.
Cost savings and trunk consolidation are big drivers behind interest in SIP technology.
RCS is a suite of rich communication services that can be launched from a capable enhanced phone book.