________________________________________
From: [email protected]
[[email protected]] On Behalf Of Sandeep Kalra
[[email protected]]
UA ---> INVITE: TO:ph...@fqdn:port (sent to IP1) ----> Proxy
<--200 OK: Invite (from IP2)
This 200 OK here triggers un-register with registrar on IP1 and
re-register with proxy on IP2.
UA ----> Un-REGISTER: FQDN:Port (sent to IP1) ---> Proxy
<----- 200 OK:Register
UA ----> REGISTER: FQDN:Port (sent to IP2) ---> Proxy
<----- 200 OK:Register
_______________________________________________
You definitely do not want to do that.
In general, an element processes a SIP message in very much the same way
regardless of the IP address from which it is sent. And a REGISTER is
providing information (the Contact URI) to the proxy that implements the SIP
domain that is the request-URI of the REGISTER. Sending the REGISTER to one
address or the other has the same effect.
Dale
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