The only way to get rid of these unwanted calls is to never answer calls if you don't recognize the number.
If you don't have caller ID, I highly recommend getting it!
Apparently these scam artists can use the American phone system for free. It is time to learn how the consumer can also use the system for free. I need to call family overseas and am going to start research on calling them using the same method that the scamers use. We pay millions of dollars in taxes to Federal FCC regulations and get nothing back. If no-one is paying for the number/s they are calling from ; how can it work? Once i learn how to do It i will post the results on every scam number report page i can find on the internet.