It is most definitely not a requirement to have the GK route a call which is expanded in an ad-hoc fashion. The MC location must be known from the point at which the first two participants complete their connection, but the MC may reside with one of the two endpoints.
If the MC is 'hidden' behind the GK and it is routing the call, the GK simply signals as it _is_ the MC.
jimt.
At 10:24 PM 3/6/98 +0800, you wrote:
Dear All, Is it a must for the Gatekeeper to route the Call Signalling Channel and H.245 Control Channel in order to support ad hoc Multipoint Conference? If it is a must, what shall the Gatekeeper and MC do? Is it correct that Gatekeeper shall pass (redirect)the transport address of the two endpoints to MC and let MC to start the Capability exchange procedure (TerminalCapabilitySet) with them? So that the previous H.245 channel between the two endpoint can becomes two H.245 between the two endpoint and the MC? GateKeeper / \ One H.245 Control Channel between / \ Endpoint1 and Endpoint2 / \ routed by Gatekeeper Endpoint1 Endpoint2 MC / \ Two H.245 Control Channels between / \ the two endpoint and MC / \ Endpoint1 Endpoint2 Thank you for answering my question! Best Regards, Vincent Chen E-mail: VincentSHChen@acer.com.tw
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