I installed nomoro (no more robocalls) and it has been 95%successful in cutting off calls. We also have caller ID which flashes on the tv and also has a snotty voice that tells who is calling. If I do not recognize the caller or the number, I do not answer. I got several of the IRS calls on voicemail last year. I got the information and reported it. Also last year got the Microsoft" calls at the time when my computer had just come back from being fixed by a very reputable person.