The model is very similar to Flashproxy, but s/WebSocket/WebRTC/
There's nothing special about Google here, it's just the first CDN we chose,
It's used to discover and exchange offer/answer between the client and proxies, so, yeah, something like a directory. But meek-like domain fronting is used so this rendez-vous isn't immediately blocked. After which, WebRTC takes over to shuttle the bits.
The bridge on Edutel just happens to be running the server component of the pt,
but that's configurable as well, and we'll eventually want more bridges as the need for capacity increases.
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