Even the development is frozen for 4.4, this is the missing one from the group that helps
to detect the top route (along with t_is_branch_route(), t_is_failure_route(), ...) and
given that is practically just a condition around route_type global variables, it might
worth merging, we haven't branched yer 4.4. Other opinions?
---
Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/pull/503#issuecomment-181786557