Interworking among intelligent networks and different networks: service control interfaces and their applications

A service control interface is proposed that can be used for telephony services provided by interworking among intelligent networks (INs), computer telephony (CT), and voice over IP (VoIP) systems. The IN Application Protocol (INAP) is mapped to a CORBA (Common Object Request Broker Architecture) interface, based on a proposed rule that achieves lightweight implementation. The proposed interface was implemented and confirmed by several service examples running on experimental systems.