The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol for creating, modifying, and terminating sessions with one or more participants. These sessions include Internet telephone calls, multimedia distribution, and multimedia conferences. The latest version of the specification is RFC 3261 from the IETF SIP Working Group. In November 2000, SIP was accepted as a 3GPP signaling protocol and permanent element of the IMS architecture. It is widely used as a signaling protocol for Voice over IP/NGN.
The SIPit (SIP Interoperability Test Event) is the premier international test event for real-time IP communication using the Session Initiation Protocol. Twice a year, around one hundred companies engage at the SIPit for a week of testing to refine both the specification and implementation of the world's next communication infrastructure.
The purpose of the SIPit event - SIP interoperability test event - is to test for interoperability of SIP implementations, to determine the source of incompatibilities and if necessary to prepare a revision of the specification.
Number of participants
109 participants attended this event from 48 companies.