I think that's a better strategy in theory, but in practice it doesn't really make a big difference. I mute all calls that don't come from my contact list, and

I think that's a better strategy in theory, but in practice it doesn't really make a big difference. I mute all calls that don't come from my contact list, and I go back and block the caller afterwards. I still get telemarketing calls almost every day. For years and years I've been doing this. I don't think their systems are smart enough to know that I'm never going to talk to them and it's a waste of their time.