I monitored the Grady EMS talkgroups from the Fulton County TRS for well over two hours this afternoon and heard no traffic. None...zippo...nada!!! Does anyone have a clue as to what might be going on? Have they gone to Nextel or SouthernLINC? Perhaps they've moved to the Atlanta DTRS? I just found it strange that Grady would have ZERO voice traffic for two hours.