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by chatmasta
2429 days ago
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If they’re using XMPP like others in the thread mentioned, they’re likely using STUN/TURN for signaling. IIRC according to google, something like 10% of hole punched traffic needs to be routed through the TURN server due to symmetric NAT. For all other types, a nearly persistent connection from server to client is possible with STUN/TURN, since a client can resignal when its connection changes. |
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