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Communication system to communication system gateway method and apparatus

  • US 5,987,331 A
  • Filed: 11/20/1996
  • Issued: 11/16/1999
  • Est. Priority Date: 11/20/1996
  • Status: Expired due to Term
First Claim
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1. A method, comprising the steps of:

  • receiving a call request from a first radio frequency (RF) communication system to support a communication request from a sourcing communication unit, which call request includes a first identifier for at least one target communication unit;

    automatically using the first identifier to determine a second identifier for the target commnuication unit, which second identifier is different from the first identifier;

    automatically using the first identifier to request provision of RF resources in the first RF communication system to support the call request, and using the second identifier to request provision of RF resources in at least one RF communication system other than the first RF communication system to support the call request;

    after receiving sufficient RF resources to support the call request, and prior to the sourcing communication unit starting a call, automatically sourcing call start information to each of the first RF communication system and the at least one RF communication system other than the first RF communication system to facilitate use of the RF resources to support the call request in the first RF communication system and in the at least one RF communication system other than the first RF communication system.

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