SIP is based on the request-response paradigm. The following sequence is a simple example of a call set-up procedure:
1. To initiate a session, the caller (or User Agent Client) sends a request wi READ MORE http://www.sipcenter.com/sip.nsf/html/SIP+Signaling
SIP is described as a control protocol for creating, modifying and terminating sessions with one or more participants. These sessions include Internet multimedia conferences, Internet (or any IP Netwo READ MORE http://www.sipcenter.com/sip.nsf/html/Characteristics
SIP (Session Initiation Protocol) is an IETF standard multimedia conferencing protocol, which includes voice, video, and data conferencing, for use over packet-switched networks.