A Service Creation Model for Integrated Communication Systems on the Internet

Advances in the Internet and telecommunications technologies have spurred many research efforts in integrated communication systems which integrate heterogeneous devices (such as desktop phone, cellular phone, PSTN phone or pager) and networks (like the Public Switch Telephone Network, cellular networks, or the pager networks) on top of the Internet and enables communications among any devices or service endpoints. In this paper, we explore the service creation model and framework for such a system, which allows easy, flexible and rapid communication service customization and extension. Keywords— Internet telephony, integrated communication systems, service creation model, user activity-based services, generic and high level state machines, system interface, system primitives, preference specification