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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)

#### 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 --> - [x] PR should be backported to stable branches - [x] Tested changes locally - [x] Related to issue #1871

#### Description <!-- Describe your changes in detail --> - TMCB_ACK_NEG_IN was called in an if branch where the initial condition was the message to be an INVITE; this was not affecting anything for the moment since this callback wasn't used but in case some piece of code would have used this callback it would be called not only for hop-by-hop ACKs but also INVITEs

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

https://github.com/kamailio/kamailio/pull/1890

-- Commit Summary --

* tm: remove unnecessary TMCB_ACK_NEG_IN callback call

-- File Changes --

M src/modules/tm/t_reply.c (8)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/1890.patch https://github.com/kamailio/kamailio/pull/1890.diff