Our business gets 2 or 3 scam calls a day. It is useless to block the numbers, because the robo callers just call from a different phone number every time.
It really burns me when I jump off one call to take a new one and it is a scammer! We are beginning a new business now, a nursing agency Toronto, and we will be getting more phone lines to combat this, HOWEVER, more phone lines probably will mean more scam phone calls.