What are Protocols?
SIP – Session Initiation Protocol
The main difference between H.323 and SIP is that while H.323 is only able to support voice and video, SIP has been expanded to include application sharing, instant messaging, presence and other communications methods we are used to in a UC suite.
RTP – Real-time Transport Protocol
Developed by the Audio Video Transport Working group and released in 1996, RTP is now used extensively in communications and entertainment, delivering audio and video.
RTCP – RTP Control Protocol
SDP – Session Description Protocol
- The IP address on the receiving end
- The port number listening for the incoming media
- The media type
- Which codec the endpoint is able to decode