lookup function has an optional uri param for looking up based on that param. lookup_to_dset is used if we don't want to overwritte the Request-URI but there is option to lookup based on a uri. during tests i noticed that the append_branch was being called when i did a lookup_to_dset("location", "$fu") and kamailio exited because of that. i made the append_branch to depend on the _mode ( 0 = lookup ) which seemed to fixed. You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/84 -- Commit Summary -- * registrar : add lookup_to_dset optional uri param as in lookup -- File Changes -- M modules/registrar/lookup.c (34) M modules/registrar/reg_mod.c (2) -- Patch Links -- https://github.com/kamailio/kamailio/pull/84.patch https://github.com/kamailio/kamailio/pull/84.diff --- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/84