In most emergency situations you will use to communicate?

Nowadays, in our technology/digital age, you would call emergency services (depending on your country and you can get a signal) by using your mobile/smart phone. In Britain it is to dial 999. In my day (I'm 72), you would need to search for a telephone kiOSk that hadn't been vandalised and still worked, or knock on any house that had at least one window lit, and hoped that the occupier would have a land-line telephone you could use !