We ditched our land line about 10 years ago so I totally forgot about that. Although I remember having one of those phones that had the digital address book on it, maybe you have a different model. Also I have T-Mobile and it tells me when a caller is "likely a scammer" and they even let me outright block those callers.

Yep pretty much the same here. I just leave it on vibrate. I have been getting more and more spam calls though, I should try DnD.

I think ringtones are distracting and totally unnecessary, with a few exceptions. My phone is either in my pocket, or on my desk nearby to where I'll see it ring.

I don't understand people who leave it on loud at work (or worse, leave it on loud then leave the phone at their desk). It's really inconsiderate. They are probably oblivious though, without someone mentioning it to them.