The SIP Center is a portal for the commercial development of SIP (Session Initiation Protocol) software. Serving both the SIP community and the wider industry, the SIP Center offers comprehensive technical and market resources as well as an environment for the testing of SIP implementations.

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Session Initiation Protocol (sip) In addition to this official charter maintained by the IETF Secretariat, there is additional information about this working group on the Web at: Additional SIP Page Last Modifield: 05/06/2002 Chair(s): Joerg Ott jo@ipdialog.com Brian Rosen brian.rosen@marconi.com Dean Willis dean.willis@softarmor.com Transport Area Director(s): Scott Bradner sob@harvard.

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