I’ve submitted a PR for adding Signal as a supported channel: https://github.com/zammad/zammad/pull/2501
It has been two weeks since I submitted it and i haven’t heard anything. AFAICT, I’ve followed the contribution guidelines.
Are there any questions I can answer?
I’ll ask the devs if they have time to look at it.
We’re currently quite busy with a lot of stuff, so sorry for the wait!
Just checking in to see if there is anything I can do to help this PR along.
We have a very similar solution for WhatsApp in the works, and if there are any significant issues with this implementation it would be good to know sooner rather than later.
I currently can’t give Feedback to this.
We currently have many holidays and vacations, I’m sure @thorsteneckel will take a look as soon as he’s ready. 
Hey @abelxluck - please excuse my late response. We’re currently right before the knowledge base release which takes a lot from us. I haven’t forgot you or your pull request. However, I need some time to review your changes and give you appropriate feedback on in.
You’ll hear back from me in about 2 or 3 weeks from now.
I‘d love a Signal integration, too. I guess there aren’t any news—but if there’s a (still working) PR, why hasn’t it been implemented yet?
Click on the PR link and you’ll be able to see the state.
Whoops. My bad. Sorry!