A framework for an intelligent network call model for ATM networks

The intelligent network (IN) is a telecommunication network control architecture that separates the service delivery functionality from the service creation functionality. This permits new services to be developed and deployed more rapidly with minimal impact on the basic switching functionality. Broadband ISDN (BISDN), with ATM as the underlying transmission and switching scheme, is expected to support both the current narrowband services and the emerging broadband services such as multimedia communications. The IN call model has been specified for calls with a single bearer service, typically voice. This paper proposes an IN call model for BISDN where a call can have multiple bearer services, such as a videoconference call. A bottom-up approach is used whereby the experience gained in IN call models for narrowband ISDN is extended to BISDN.