I unplugged my answering machine so they just reach a ring. I also have purchased a call blocker device and as these calls come in if I am not home to immediately block them I block them manually , it does work. I have written to three different attorney generals in three different states and each one basically said they are spoofed  numbers and not much they can do about it.  I still would suggest people do the same thing and bombard them something can be done,  they just need to be pushed.