That's what I'd like to know. I live in Camden County, NJ and lots of times I hear very strange backround noises. I hear people laughing, whistling, and making silly "woo-hoo" noises. Sometimes even the dispatchers get the giggles. Normally if I am listening to neighboring counties (Burlington County, Gloucester County, etc), I hear noises that I should hear like 9-1-1 telephone operators talking to callers, or audio from the other frequencies in the alarm room. So what actually goes on back there in a dispatch center?