I ANSWER UNKNOWN NUMBERS, HANG UP (THIS TIME 3 FREE BAHAMA CRUISE TICKETS) AND NOTIFY UNWANTED CALLS WEBSITE, AND THEN BLOCK THE CALL ON MY PHONE. I HAVE A PHONE THAT ENABLES YOU TO BLOCK CALLS WITH A PUSH OF A COUPLE BUTTONS. THIS CAME IN HANDY BEFORE THE LAST ELECTION. I ENDED UP WITH 30 BLOCKED CALLS.