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