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A comment on Show HN: Talk – A free group video call app with screen sharing. Parent comment

Re:Show HN: Talk – A free group video call app with screen s... by rambojazz on Saturday September 05, 2020 @03:56AM (#24382053)
Those are not specific to WebRTC though. They are needed protocols if you want a chance to traverse NATs. They're used by WebRTC and other VOIP stacks too.
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