Sdp.mp4 -

: Which compression formats (e.g., H.264, VP8) are supported ( a=rtpmap ). How it Works (Offer/Answer Model) Systems use an Offer/Answer model to connect: The Secret Protocol Making Video Calls Work | SDP in WebRTC

The is a text-based format used by communication systems (like SIP or WebRTC ) to agree on technical details before a call begins. It doesn't carry the actual video or audio; instead, it acts as a "blueprint" or "technical handshake". Key Components of an SDP Message SDP.mp4