SIP features are compliant with IETF RFC 2543, SIP: Session Initiation Protocol, published in March 1999. The Cisco SIP implementation enables supported Cisco platforms to signal the setup of voice …

Internet telephony (which has Internet in its name) is about IP. IP telephony runs on top of IP and utilizes the IP service model. It is not about re-engineering PSTN -- PSTN is good enough. SIP is much …

• It's an open standard peer-to-peer communication protocol used for initiating, maintaining, and terminating real-time sessions, such as voice and video calls over IP networks. SIP is an application …

SIP is an RFC standard (RFC 3261) from the Internet Engineering Task Force (IETF), the body responsible for administering and developing the mechanisms that comprise the Internet.

“The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol for creating, modifying and terminating sessions with one or more participants.” Peer to Peer!

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 …

320 SIP is not avertically integrated communications system. SIP is rather acomponent that can be used with 321other IETF protocols to build a complete multimedia architecture.