Did you know there is a way to make money on robocalls?Yep it's legal. The Federal Trade Commission says it has received more than 3.7 million complaints about robocalls TheTelephone Consumer Protection Actand theTelemarketing Sales Rule has made it illegal for any business to call a cell phone using an auto dialer without permission. Every time they do, they could owe you no less than $500. If your cell phone is on the National Do Not Call Registry .