H.323 uses unicast traffic. Some vtc endpoints are also capavle of generation a mutlicats video stream, but that is not a part of the H.323 feature set. Multicast is not supported on the public internet, and very few if any providers are going to al...

H.323 uses unicast traffic. Some vtc endpoints are also capavle of generation a mutlicats video stream, but that is not a part of the H.323 feature set.