The route really are not required. You need to remove the routes and figure out what's not working from there. With the routes your are routing to
If you are getting 480 (temporarily unavailable) - it means the request URI of your INVITE doesn't match the exact URI (To header) that you registered with. Likely the port is missing or doesn't match. If you use the default UDP of 5060 then you can get away with the port being present or not.
A couple of other suggestions:
- I would avoid using port 5061 for UDP - this is the default TLS port. Try first with using port 5060.
- Use a real domain name and not IP and port for your AORs. If you don't have control over a DNS server, then use the outbound proxy setting of your clients to specify the server IP and port, so DNS resolution on the domain name will not be required.
Scott