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Well, when GateKeeper uses 3rd (Case III) Routed mode?....
- Case I.
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The gatekeeper doesn't route them. The H.245 control channel and logical channels are established directly between the endpoints.
- Case II.
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The H.245 control channel is routed between the endpoints through the gatekeeper, while the logical channels are established directly between the endpoints.
- Case III.
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The gatekeeper routes the H.245 control channel, as well as all logical channels, including RTP/RTCP for audio and video, and T.120 channel for data. In this case, no traffic is passed directly between the endpoints. This is usually called an H.323 Proxy, which can be regarded as an H.323-H.323 gateway.
