<!-- Kamailio Pull Request Template -->

<!-- IMPORTANT: - for detailed contributing guidelines, read: https://github.com/kamailio/kamailio/blob/master/.github/CONTRIBUTING.md - pull requests must be done to master branch, unless they are backports of fixes from master branch to a stable branch - backports to stable branches must be done with 'git cherry-pick -x ...' - code is contributed under BSD for core and main components (tm, sl, auth, tls) - code is contributed GPLv2 or a compatible license for the other components - GPL code is contributed with OpenSSL licensing exception -->

#### 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)

#### Type Of Change - [x] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality)

#### Checklist: <!-- Go over all points below, and after creating the PR, tick the checkboxes that apply --> - [ ] PR should be backported to stable branches - [ ] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number)

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

The `ims_registrar_scscf` was not able to function with global-number tel-URIs. This fix prevents a bad AOR to search by from being formed, when the host part of Request-URI is empty.

e.g. INVITE with Request-URI `tel:+123` --> AOR to search by was `tel:+123@` --> not found in `ims_usrloc_scscf`

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

https://github.com/kamailio/kamailio/pull/3897

-- Commit Summary --

* ims_registrar_scscf: fix for location AOR with empty host

-- File Changes --

M src/modules/ims_registrar_scscf/lookup.c (5)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/3897.patch https://github.com/kamailio/kamailio/pull/3897.diff