Not necessarily. Ours would work down the list of numbers she had for me, my wife, and other emergency contacts without leaving a message. My wife got pulled out of a meeting at work once despite me being the parent at home because I missed a call from the school and they didn't bother to leave a message.

> But you'd very likely have their number saved on your phone.

I certainly don't. Every call I get from the school seems to come from a different number. And the camp she was at when she hurt her leg and had to be taken for immediate medical attention.

I get it, in your world, in your experience, it all works out. But in mine, it just doesn't. From experience, I _know_ this is true.