SIP

SIP (Session Initiation Protocol) is an IETF standard multimedia conferencing protocol, which includes voice, video, and data conferencing, for use over packet-switched networks. SIP is an open standard replacement for the ITU's H.323. SIP is described in RFC 3621 - SIP: 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...

Read more...