Trunked communication system with nationwide roaming capability

Details Trunked communication system with nationwide roaming capability Trunked communication system with nationwide roaming capability

H - Electricity

04

Q

325/6

H04Q 7/38 (2006.01) H04Q 7/28 (2006.01)

Patent

CA 1282462

TRUNKED COMMUNICATION SYSTEM WITH NATIONWIDE ROAMING CAPABILITY Abstract Selected regional trunking systems are equipped with telephone interconnect capability and provided with local computers (106), which communicate with a national hub computer (110). At each selected trunking system, several IDs are reserved as "roaming IDs" to be temporarily assigned to roaming subscribers (112). When a subscriber determines that it has roamed into a new trunked system, it requests a roaming ID. A roaming ID is assigned and transmitted to the subscriber, which thereafter operates within the new trunked system using its roaming ID. The roaming assignment is also transmitted to the national hub computer (110) so that interconnect calls may be appropriately properly forwarded. The roaming subscriber (112) continues to operate under the assigned roaming ID until it roams out of the range of the current system and into yet another trunked system. In this way, the subscribers may roam from system to system.

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