Patent ID: 6640109
Filing Date: 2003-10-28
Classification: H04W

Abstract:
A method for interurban dispatch group calling comprising:receiving, by a call controlling dispatch controller (DC), a dispatch group call request targeting a talkgroup served remotely by at least one remote controlling DC and targeting at least one communication unit, wherein the at least one communication unit is a member of the talkgroup, wherein the dispatch group call request is received from an originating unit; sending, by the call controlling DC to the at least one remote controlling DC, a request for the at least one remote controlling DC to page members of the talkgroup that each of the at least one remote controlling DC serve; receiving, by the call controlling DC from a first remote controlling DC of the at least one remote controlling DC, an indication that at least one communication unit is available; and sending, by the call controlling DC to the first remote controlling DC, a request for the first remote controlling DC to initialize channel resources to support a dispatch group call.