Infotech Oulu Lecture Series
When will the telephone network disappear?
Lecturer: Prof. Henning Schulzrinne, Internet Real-Time Lab, Dept. of Computer Science, Columbia University
Date: June 7, 2002
Time: 10:15 - 11:15
Transmitting voice and other multimedia content over packet network has been a research topic for two decades. In the last two years, it has finally become possible to build a phone service that relies purely on Internet Protocol components. However, a number of challenges remain before the last circuit switch can be turned off and be replaced by voice-over-IP (VoIP). In this talk, I will survey some of the work in the Internet Real-Time Laboratory at Columbia University in the area of voice-over-IP. We have built a generic architecture called CINEMA that provides a complete replacement for a PBX and have experimented with integrating it into the campus phone system.
I will describe the challenges that remain before the phone system disappears in its current form, including quality of service, security, emergency calls and the economic model of IP networks.
See this page.