Abstract
We propose an architecture for hybrid services, i.e., services that span many network technologies, especially the PSTPN and the Internet. These services will play an important role in the future, because they leverage on the existing infrastructures, rather than requiring brand new and sophisticated mechanisms to be deployed. We explore a few issues related to hybrid services and propose a platform, as well as a set of components, to facilitate their creation and deployment. The existing infrastructure is only required to generate specific events when requests for hybrid services are detected. We present the design of a service layer based on Java that handles the treatment of these special requests. Our service layer is provided with a set of generic components realized as Java Beans. Hence, we can provide hybrid services without changing the existing infrastructure. We illustrate this strength of our architecture by discussing the call forwarding service.
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