SBC - general routing question
Hello,
the OCSR receives INVITEs in following format phone_number@domain. The domain is unknown and the OCSR tries to look it up and route the INVITE towards it. It fails and then the local-policy routing is triggered.
If it fails too (from/to addresses are not matched) 500 is sent back. I was told that if local-policy is not matched 404 is sent back. If there's an IP address in the INVITE RURI 404 is sent back.
Questions:
1. Is there any way how to override this behavior, ignore the 'domain' routing and route on 'to-address' immediately?
2. Is this legal? I'd expect the RURI should contain an IP address of the sip-int the INVITE is sent to (strict routing) or a route header with the same IP address (loose routing).