Our phone system blocks robo calls & we get quite a few a day, usually 2-3 minimum with a high of 16! If a call is a number not in the directory or on the “allowed” number list, they get a message that ‘Smart CallBlocker’ is in progress ... if they are an “invited person or business”, they should press the # sign. Robo calls can’t do this. Maybe 1 in 20 calls get through this way & they have all been legitimate calls by actual people. The calls in the directory & allowed list ring straight through. We also have the ability to directly block at least 1,000 numbers, but most scammers change numbers/extensions with almost every call so the “press #” really works best overall. I have elderly parents very susceptible to scams (& if the phone rings, they think they should answer regardless) so this system is a real blessing.
I have that system too. Every once in awhile the idiot will press through like they think i am going to talk to them. I take it off when expecting a call because sometimes businesses will just hang up.