I am beginning to believe that EMS TG20547 is an ALLCALL Talk Group. There seems to be no answer to dispatch from field units on this TG when dispatch calls for a unit and is not used often. Tonight I heard the dispatcher call "all units please expedite", apparently calling all units and not expecting a radio response. There seems to be no transmissions from any hospitals/clinics since it is in the middle of most local hospital/clinics TGs that have 800 radios. Also on the old radio system there was an ALLCALL TG for EMS.
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