Calling back numbers you don't know can lead to unpleasant surprises. If the number is listed with 800 notes as a possible scam, why would you want to call it? Check the number FIRST.
Has called me today. Once at 9 30 am and again at 12 15pm. I answered the first time and no one was there and the second time I let it go to voice mail and they didn't leave one.