"The telecommunications industry has come a long way in 25 years. Soon, PSTN could become obsolete and go the way of the dinosaur."
[WebRTC] "creates more islands of communication as it makes it easy to add UC capabilities in other applications." - Amir Zmora of Audiocodes
These quotes came from the page for an e-book Dell is distributing. "The e-book below features VoIP history, UC (unified communications) drivers and trends, and the potential future of WebRTC." Interesting read.
Broadvoice just announced a UC suite release. It includes Instant Messaging and Presence; "video calling; screen sharing and crystal clear voice calling with full PSTN connectivity." In addition, they added "Hosted Email service featuring integrated communication tools such as visual voicemail, virtual fax, click-to-call, call logs and voicemail to email transcription."