I just block everything that isn’t in my phone book. I use an app that sends it to voice mail without showing on my screen, so it doesn’t disturb me. I can turn it off anytime via the windowshade if I’m expecting a call.

If it’s someone who actually has business with me, they’ll leave a message, which my voicemail will transcribe and send to me quietly as a text notification. 90% of the time it’s a scammer or solicitor I don’t care about. Most of the rest are robo appointment reminders.

Do yourself a favor and don’t answer any calls you’re not expecting. You’re just putting yourself on scammers’ lists.