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A peek under the hood at the WebRTC pipeline powering voice and video.
Engineering at Xelvic · 2026-08-30 · 7 min read
Xelvic calls are peer-to-peer over WebRTC. Our own signalling service sets up the connection and hands out ICE servers so two phones can find each other.
This is what happens between the tap and the first frame — and what we do when the network stops cooperating.
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