This a deal breaker for me. I understand your intention here and from a pure alerting perspective you're correct, but I have use cases for other forms of notification.

dmattia noted the most important one. It’s a low probability situation but it does occur, and in some cases people reasonably object to installing an app because of a work requirement.

I also strongly prefer multiple notification channels making noise on my phone at night. A page usually wakes me up. A page plus a phone ringing always does, so far.

Too bad. :( Would've loved to help you out. Would you mind elaborating on your usecases and why it's axactly a deal breaker?

I for one sometimes are in regions where internet access is spotty, but getting a call works.

What are you supposed to do exactly when you are in a region with spotty internet and you get a page? Jump on an incident bridge, pull up the logs and dashboards, and start debugging? If are you going to somewhere with spotty internet, presumably it didn't just happen all of a sudden and you knew in advance, and thus could have swapped on-call duty with someone else who would have reliable internet?

> What are you supposed to do exactly when you are in a region with spotty internet and you get a page?

Go somewhere with better internet access. Not all incidents require that you must immediately check on it.

I guess I just can't work for any company using All Quiet then, which is fair as I understand both my perspective and yours. But just adding this comment as a data point to consider, and I wish you the best.