Greene County uses a system similar to locution in witch the computer voice dispatches the call. On medical calls and fire calls the call is given a priority. All medical calls given a basic care priority are a non emergency response. All calls with advanced or critical care are given an emergency response. Non emergency response the ambulance will respond with no lights or sirens. Fire calls are set up the same way. All investigation calls are given a basic priority and the fire apparatus will respond non emergency. Higher acuity calls will get an emergency response. In Greene County if it is a fire or rescue call you will hear the address, nature of call (Crash with injuries, Smoke alarm. Structure fire) and how to respond to the call (Emergency or non emergency) On medical calls you will only hear the address of the call, How to respond to the call (Emergency or Non emergency) and the priority of the call (Basic care, Advanced care, Critical Care) you may at sometimes here more about the patients chief complaint once the ambulance marks up that they are responding. I hope this answers the question you are asking.