No one is calling you from this site. Your callers are located in India and Pakistan and regularly ignore all US laws.
Call blocker might be of some help. Also don't pick up on numbers you do not recognize, or where there are caller IDs that seem odd. Or where there is no caller ID. There’s no way to stop the calls from being initiated.
They called me and asked if I had bladder issues and if I was on birth control! What the he'll is it their business and said they were with American compensations.