I feel your pain, Redhedkat. I have the same problem. I bought a phone attachment called CPR Call Blocker, for around $100. It sets on the table next to my phone. I got the 100K version, which means in addition to the 100,000 scammer numbers already pre-recorded in the memory of the unit for known fraudsters and scammers, it has additional memory for 10,000 more numbers that can be added by the user.
If a scammer on the official government list calls, my phone rings one time, then the call is blocked and a message pops up on the screen saying “Probably Fraud!” If a scammer calls that is not on the list, I answer and as soon as I determine that it is someone or some machine that I never want to talk to again, I hit the big red button that is labeled “BLOCK NOW”. The unit then flashes “Successful”, meaning the caller number has been added to the blocked list. Then I hang up. If that caller tries again using the same number, he gets a busy signal or a message saying “number is not available”. So far, in addition to the 100,000 built in numbers, I have blocked 339 callers that were not on the original list. The unit has blocked hundreds more calls that only show up in my AT&T phone Call Log as missed calls.
CPR Call Blocker devices are available for cord or cordless phones, but not for cell phones as far as I know. It makes me glad that I don’t use cell phones except when traveling.
The CPR Call Blocker is not fool-proof. Scammers have computer programs that cycle through a list of spoofed numbers that they can use to show up on my Caller ID as their phone number. They can use any number in their computer memory as their calling number, so any call blocker has to be able to add lots of numbers. Usually, the Caller ID will show the spoofed number first, then when the call is ended, the REAL number will pop up. I usually hit the redial and call the real number back, and as soon as it shows up on the Call Blocker, I again hit the big red button, blocking that number too. That makes it more difficult for a scammer to get a call through to me.