Patent ID: 6920130

Claim:
A gateway adapter, comprising: a) a PBX interface for connection to a PBX system entity to communicate with the PBX system entity using a PBX protocol, the PBX system entity establishing a functional domain within which call sessions can originate and terminate; b) a network interface for communicating with a packet switched network entity establishing a packet switched network domain; and c) an interoperation functional unit associated with said PBX interface and with said network interface, said interoperation functional unit being operative to effect manipulations on data received by said interfaces from the PBX system entity and the packet switched network entity, respectively, to allow the PBX system entity and the packet switched network entity to interoperate, and wherein said interoperation functional unit is responsive to communication control data from a remote network services unit operable for providing call processing services for a call session involving the PBX system entity.