Samsung Ubigate iBG3026 Configuration Manual page 456

CHAPTER 29. H.323 Gateway Management
Figure 29.3 Call Setup from a unknown H.323 Endpoint, with Gatekeeper
When H.323 gateway is registered in a gatekeeper, the H.225.0 SETUP
message from gatekeeper follows the call procedure illustrated in Figure 29.4.
Figure 29.4 shows the case where a gatekeeper usually uses a Gatekeeper
Routed Call Signalling.
414
iBG3026
SETUP
ARQ
ACF
Call Signalling Messages
RAS Messages
iBG3026
SETUP
ARQ
ACF
CallProceeding
Alerting or Progress
Connect
Call Signalling Messages
RAS Messages
Figure 29.4 Call Setup from Gatekeeper
Gatekeeper a known H.323 endpoint
CallProceeding
Alerting or Progress
Connect
Gatekeeper
SETUP
H.323 endpoint
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