Cabbies are always in contact with each other via radio. We take turns dispatching, usually 2 hrs each depending on how many drivers are rolling. When not in the office you let the dispatcher know you are stepping out and when you are back in. You broadcast when you pick up, where you are going and when you are clear. We all help each other out with directions if needed. When we get backed up and say so on the radio other cab companies monitor our frequency and send their drivers out to our pickups that are waiting more than 15-20 minutes. Thats the business.