Peter Dunkley writes:
One of the things that was requested at the start of the outbound work in Kamailio was the ability to "force" outbound even when a UA does not support it and to be able to use the outbound flow tokens for NAT traversal instead of contact aliasing on "single server" configurations.
fine IF there is some advantage in putting the information in rr header instead of contact header.
To my mind this means we need to double-RR when there is just a single proxy/registrar in use. It also means that, when there is a single proxy/registrar and the Path extension would not normally be used, we still need to do something to get the flow tokens (userinfo part of the Path-URI) into the location table so that they can be used for NAT traversal.
sounds much more complicated than contact aliasing.
-- juha