As an investor who's been actively searching for a business to purchase for the last 2 years, I've learned how to spot them and avoid them. Most savvy, qualified buyers will as well. If you're serious about selling your business don't wast your time with these bafoons.
Got a call with a recording saying "We're sorry, we dialed your number in error" when I answered. I guess they already know our numbers is working number then they will "sell" it to the telemarketer