Many folks do not know that when they pull up to the drive thru at McDonalds (and many other fast food chains) that your not talking to the cashier at that McDonalds--you are talking to an operator at a call center in Kansas City, St. Louis, or some other place far away. They put the order into a computer and it shows up on that McDonalds overhead orders monitor.
Many pizza chains have gone to either national phone centers, internet ordering, or both.