Columbia University
Columbia University: Session Initiation Protocol (Sip)
This is a very complete, academic site covering the SIP protocol. Find out an overview of the topic, news, features, grammar, implementations, service providers and more.
Other
Mdk12.org: School Improvement in Maryland: Sip
The job of the school improvement team is to lead the development of a school improvement plan that addresses student achievement needs, to monitor the implementation of the plan, and to revise it when appropriate. Find resources on how...
Wikimedia
Wikipedia: Session Initiation Protocol (Sip)
An introduction to Session Initiation Protocol (SIP)that involves multimedia elements such as video, voice, instant messaging, online games, and virtual reality. It is one of the leading signaling protocols for Voice over IP.