My uncle works as a 911 dispatcher in Jefferson County, Ohio. He received a site were you can listen to the dispatcher when the planes hit. I must say it is long, but it puts a whole new prospective to what happened to the firefighters and ems.
http://graphics8.nytimes.com/packages/html/nyregion/20050812_WTC_GRAPHIC/met_WTC_histories_full_05.html
Jeffers