SIP: understanding the session initiation protocol
SIP: understanding the session initiation protocol
Standards for Service Discovery and Delivery
IEEE Pervasive Computing
Modeling Context Information in Pervasive Computing Systems
Pervasive '02 Proceedings of the First International Conference on Pervasive Computing
Providing architectural support for building context-aware applications
Providing architectural support for building context-aware applications
Context-Aware Computing: A Guide for the Pervasive Computing Community
ICPS '04 Proceedings of the The IEEE/ACS International Conference on Pervasive Services
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We look into the combination of a SIP application (IP based multimedia telephony) together with a context-aware smart environment. We start by describing a scenario where it is highly relevant to use such a combination. The combined application is called ENME, and is managing and moving communication sessions based on user context. We are realizing the service with SIP REFER and SIP extensions. We also discuss briefly other solutions such as ’virtual terminals’, and we identify pros and cons of the different solutions. The application is implemented, and runs on a model railroad system, but the context model itself is more general. A next step would be to deploy the application in other smart environments, and we look briefly into a hospital environment. We end the paper by identifying some human issues for the service to work properly, and relate these issues to the technical solutions.