CHAPTER 28. SIP Gateway Management
Server
User agents
Server
User agents
342
Response 200 OK
Client
Client
Figure 28.3 SIP Response Through a Proxy server
Client
Client
Figure 28.4 SIP Session Through a Proxy Server
IP-based
network
Response 200 OK
Server
Proxy
Redirect
IP-based
Ack
network
RTP
Ack
Server
Proxy
Redirect
Client
Server
User agents
Client
Server
User agents
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