Abstract In this article, we propose an architecture for hybrid services, i.e., services that span many networktechnologies, such as the Public Switched Telephone Network (PSTN), cellular networks and networksbased on the Internet Protocol (IP). These services will play an important role in the future because theyleverage on the existing infrastructures, rather than requiring new and sophisticated mechanisms to bedeployed. We explore a few issues related to hybrid services and propose a platform, as well as a set ofcomponents, to facilitate their creation and deployment. The existing infrastructure is only required togenerate specific events when requests for hybrid services are detected. We present the design of a servicelayer, based on Java, that handles the treatment of these special requests. Our service layer is provided witha set of generic components realized according to the JavaBeans model. We illustrate the strength of ourarchitecture by discussing two hybrid-service examples: a calendar service and a call forwarding service.
['Simeon Keates', 'Peter Robinson']
The use of gestures in multimodal input