Comment by K0nserv
16 hours ago
You can do TURN using TLS/TCP over port 443. This can fool some firewalls, but will still fail for instances when an intercepting HTTP proxy is used.
The neat thing about ICE is that you get automatic fallbacks and best path selection. So best case IPv6 UDP, worst case TCP/TLS
One of the nice things about HTTP3 and QUIC will be that UDP port 443 will be more likely to be open in the future.
It's going to take those conservative netadmins another 10 to 20 years to learn that HTTP/3 or QUIC works over UDP and that it needs to be enabled. So... happy buffering and watching spinners until then.