The SIP Center is a portal for both educating users and the commercial development of the Session Initiation Protocol.

Serving the SIP developer community as well as the wider industry since July of 2000, the SIP Center offers comprehensive technical and market resources to those interested in everything SIP!  Access a comprehensive products and services directory, the latest SIP news and special interest articles, tutorials, whitepapers, developer resources and much more.
Visit The SIP Center for information on all things SIP at www.sipcenter.com