[Serusers] How set up proxy to process messages

[Nguyen Tuan]

Hi everyone,

I have problem with set up proxy to process message INVITE.

I have 2 SIP users of different domain. How can I set up proxy for each 
domain to process message INVITE from one domain to another? Now when 
user 1 of domain A send INVITE message to user2 of domain B then message 
go to direct to server of domain B, do main route{} block  of B and then 
send to user2. 

I need the INVITE message of user 1 the first go to proxy of domain A, 
process that message (do main route{} block) and then send that message 
to proxy of domain B, process it (do main route{})and then send to user 2.

Thanks,
Tuan.