[Stratoscope]

This reminds me of a rotary phone experience I had about 30 years ago.

It didn't involve a rotary phone directly, but a telephone network that was still compatible with them.

Rather than repeat the story, I'll link to it here:

https://news.ycombinator.com/item?id=40391220

If anyone needs their curiosity piqued, it involved a loud knock on the door and...

"San Jose Police! Open up!

[satiric]

That story rang a bell, and I was about to comment about 112 redirecting to 911 (precisely because 112 was easier to dial), then realized I had commented the same thing a year ago when I first saw the post

[pram]

FWIW I think all PSTN were/are compatible with pulse dialing.