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#### Pre-Submission Checklist <!-- Go over all points below, and after creating the PR, tick all the checkboxes that apply --> <!-- All points should be verified, otherwise, read the CONTRIBUTING guidelines from above--> <!-- If you're unsure about any of these, don't hesitate to ask on sr-dev mailing list --> - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated)

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#### Description <!-- Describe your changes in detail -->

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/2401

-- Commit Summary --

* ims_usrloc_scscf: added a new contact state, udomain/impu improvements * ims_registrar_scscf: added a new registrar event, notification improvements

-- File Changes --

M src/modules/ims_registrar_scscf/cxdx_callbacks.c (4) M src/modules/ims_registrar_scscf/reg_rpc.c (2) M src/modules/ims_registrar_scscf/registrar_notify.c (154) M src/modules/ims_registrar_scscf/registrar_notify.h (9) M src/modules/ims_registrar_scscf/save.c (25) M src/modules/ims_registrar_scscf/usrloc_cb.c (5) M src/modules/ims_usrloc_scscf/impurecord.c (72) M src/modules/ims_usrloc_scscf/udomain.c (39) M src/modules/ims_usrloc_scscf/usrloc.h (7)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/2401.patch https://github.com/kamailio/kamailio/pull/2401.diff