SDP (Session Description Protocol)

The Session Description Protocol (SDP) is a format used to describe multimedia communication sessions, such as voice or video calls. It provides details like the type of media (audio or video), the network addresses, ports, codecs, and other parameters needed to establish and manage a connection between participants. Think of it as a detailed itinerary or set of instructions that helps devices coordinate how to send and receive media streams during a session. SDP is commonly used in technologies like VoIP and video conferencing to ensure all parties understand the session setup.