Prototype for a service architecture for next generation networks

The paper describes the basis of an architectural solution for a multimedia service layer, including a system logic implementing the VHE, a service engine providing session control, and access to network services through an OSA/Parlay-like interface. A prototype for a service platform for the next-generation network (NGN) is also described, targeted at offering services in fixed and mobile networks using NGN principles, and focused primarily on the architecture of the core IP-UMTS network based on current 3GPP specifications