Jeroen van Bemmel wrote:
Juha,

For clients one would distribute "client-interface.example.com" as the outbound proxy FQDN to use, and upstream proxies would be given "server-interface.example.com" (by using that as domain in AORs).

For R-R, the proxy would use "client-interface.example.com" if it performed a location service lookup (i.e. assuming that next hop is then an endpoint), or "server-interface.example.com" otherwise.

Nevertheless, in the R-R it would probably be better to be explicit about the transport to use, and not rely on DNS SRV. Then there is no need to worry about client vs server interface protocol preferences, or proxies that use dynamic registration, or DNS SRV misconfiguration or lack of support for it.
I agree with the last point, but does everybody agree?
I would really like to know because this exactly the type of scenario I would like to see clarified in draft-froment-sip-record-route-fix-00...

Thomas


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