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Architecture and Design Principles of the Session Initiation Protocol (SIP)

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Henning Schulzrinne , Jonathan Rosenberg
Last updated 2005-07-20
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The Session Initiation Protocol (SIP) and its many extensions and supporting technologies define a solution for multimedia communications on the Internet. Much of the design and architecture for SIP is based on a key set of architectural principles which, while commonly discussed on mailing lists and other forums, have not been explicitly captured. This document seeks to rectify that gap by outlining the key set of architectural and design principles underlying SIP.


Henning Schulzrinne
Jonathan Rosenberg

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)