do you have any idea what they are calling about? I have received a couple of phone calls, but if I answer there is no one there and then if I don't answer, they don't leave a message. I traced it and goes back to being a land line in MI, but that is all that I could find on it for now. What did they say to you or what were they were trying to sell?? The phone line they call me on is our business line... not sure how they got it because we are on the "do not call" list, it works for our home number,but not so much for our business. Thanks!!