WebRTC is a P2P (peer-to-peer) protocol that allows only two users to connect over one WebRTC connection. Let's take a closer look at how the protocol works:
- Signaling: Users exchange information with each other, such as IP address, session description, etc., through a signaling server.
- Peer connection: After connecting, users can send audio, video, and messaging messages without a server.
- Media capture: When a user sends a video, the WebRTC video calling API captures the required video from the webcam and encodes it using a codec. Similarly, the receiver decodes and this process is called media rendering.
- NAT Traversal: When network issues occur, the WebRTC group video calling API leverages the NAT mechanism to overcome network delays.