Despite getting caller I.D., and signing up and using nomorobo.com to stop robo calls, they continue.
Their latest trick is to grab a local number so that the local number and name shows up on the I.D., but it is really the scammers. As quickly as we enter their number into nomorobo, they change the phone # and call again.
Your suggestions would work. They really can put a stop to it if they wanted to. But their donor-owners don’t want it to stop.
Guaranteed to work and fun to watch, IMO.