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WebRTC vs WebSocket vs phone

10 min applied40 min research2 curated resources

Learn the 3 ways audio travels: phone (PSTN/SIP) for calls; WebRTC for browser/app voice (built for real-time, handles bad networks — used by LiveKit); WebSocket for simple server-to-server audio streams (e.g. Twilio Media Streams). You do not need to implement these — platforms do — but you must know which one your setup uses.

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