I am developing a high-availability UA system. This
system will have following configuration
UA1 --- b2b Server 1 (1.2.3.4) -----
\ | -- backend
\ --- b2b Server 2 (9.10.11.12) ---- database
(DB)
In a typical scenario, UA1 will establish initial
dialog with b2b1. This b2b1 will save all dialog
information in DB -- includes From, To, Contact and
other headers. (Actually whole Invite message.)
Now when b2b1 fails, b2b2 takes over and DB pushes all
call information to this server. Let us say b2b2 is
able to build dialog with information from DB. My
question is if any message is sent to UA1 in
reconstructed dialog: will UA1 drop the call since
message is coming from a different IP address
(9.10.11.12) than one (1.2.3.4) used in establishing
initial dialog??
Any suggestions on building b2b high-availability
system...
Thanks
-suheel
Suheel Hussain
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