Chapter 13. SDP
The Session Description Protocol (SDP) is an application-layer protocol intended to describe multimedia sessions. It is a text-based protocol. When describing a session the caller and callee indicate their respective "receive" capabilities, media formats and receive address/port.
Capability exchange can be performed during session setup or during the session itself – i.e., while the session is in progress.
At the time of writing, a new SDP specification is in the process of being finalized. The current version is [Draft-ietf-mmusic-sdp-new] and the earlier version was specified in [RFC2327].
Get The IMS: IP Multimedia Concepts And Services, Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
