Given that there are multiple Route sets , each with one param , check_route_param() function fails to search the proper param.s string . The condition params.s[0]!=';' holds false and it stops the loop only when it encounters another ";" character which is not part of the Route header . Eg: (these are not actual Route params, but this is what it is printing instead - this is part of my INVITE, and these headers are above Route ): rr [loose.c:985]: check_route_param(): params are <;spi-s=424238335#015#012Require: sec-agree#015#012Proxy-Require: sec-agree#015#012Cont> This patch is a functional workaround. Note I have also seen there routed_params.s not pointing to the actual params , so perhaps there might be another issue before reaching this code. You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/663 -- Commit Summary -- * rr: fix Route param search in check_route_param() * Merge remote-tracking branch 'upstream/master' into fix-check_route_param -- File Changes -- M modules/rr/loose.c (4) -- Patch Links -- https://github.com/kamailio/kamailio/pull/663.patch https://github.com/kamailio/kamailio/pull/663.diff --- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/663