IP Telephony Cookbook by Saverio Niccolini, Jorg Ott, et al - HTML preview
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H.323 messages
Figure 5.12 A SIP/H.323 Gateway containing a SIP Proxy and registrar 2. The SIP/H.323 Gateway contains an H.323 Gatekeeper (Figure 5.13).The user registration information from both networks is maintained by the SIP Proxy Server.The SIP registrar receives the forwarding of any H.323 registration request received by the H.323 Gatekeeper.The SIP
server stores the user registration information of both the SIP and H.323 entities; SIP/H.323
Gateway
SIP
H.323
TE1