[mbrameld]

That's a little disingenuous. They don't HAVE to pay for those calls, but if Yelp's system decides an order took place then they get charged for the call. Based on some experimenting done recently by a podcast I listen to (can't remember which one right now), that decision boils down to "if the call was longer than 45 seconds and food was discussed, then an order took place". It's then up to the restaurant owner to reconcile and dispute any charged calls that didn't end in a sale. That means listening to the recording of every call that was charged and requesting a refund for each one that didn't end in an order.