Inventors:
William Shores - Phoenix AZ, US
Thomas Emmons - Mesa AZ, US
Thomas Hallin - Erie CO, US
Leonard Pennock - Chandler AZ, US
J.C. Stanaway - Wheaton IL, US
International Classification:
H04L 12/66
Abstract:
These teachings facilitate interaction between two or more communication networks (and ) comprising separate and discrete communication system peers. At least one of these networks is functionally partitioned with respect to interrogation and call signaling procedures over a plurality of geographic service areas (, and ). Gateways (and ) permit interaction between these networks, wherein at least some of the gateways provide functionally partitioned interrogation and call signaling procedures for some, but not all, of the plurality of geographic service areas. Upon receiving () a call routing message from a source from a remote communication network, which message identifies a target communication unit that is currently serviced by the first communication network, such a gateway can process () that call routing message as a function, at least in part, of a home geographic service area and a serving geographic area as corresponds to the target communication unit.