A study on call modelling for AIN/B-ISDN integration

ITU-T has considered the Intelligent Network(IN) Capability Set 2(CS 2) phase, which includes the FPLMTS capabilities for providing mobile services in Advanced IN(AIN) based network. Simultaneously, AIN and B-ISDN integrated architecture would be recommended upto IN CS-3 phase. This paper describes the call model of new Service Switching Point(SSP) based on the integration technology of AIN and B-ISDN. It may be the switching functions which will be much affected by AIN/B-ISDN integration. We modify functional elements for integrated network focusing on Broadband SSP(B-SSP) as well as a call model supporting the separation of call control and connection control. We propose a three layered call model, which consists of session control state model, resource control model, and bearer control model, that supports various types of call (multi connection, multi party, etc.). Centralized originating and terminating parties. AIN/B-ISDN integrated call modeling should fully include B-ISDN signaling capabilities and AIN benefits. In this paper, the proposed call model is evaluated for specific multimedia service, Video On Demand(VOD) service