A Programmable Context-aware Voice Service
نویسندگان
چکیده
This paper presents a programmable context-aware voice (CAV) service, which enables VoIP services to cope in crisis situations. To prevent the upsurge in traffic normally associated with a crisis from degrading the quality of service for privileged users like emergency workers, the CAV service prevents nonprivileged users from accessing the network during a crisis. This service is built upon the CONTEXT platform, an innovative middleware designed for the creation, deployment and management of context-aware services. The platform consists of a programmable layer, a context-aware service engine and a policy-based service layer. The voice services in the CAV are provided by a session initiation protocol (SIP) platform called Siptrex. The result is an easily customised, flexible and scalable context-ware service, which suppresses, non-essential traffic during crisis situations allowing greater bandwidth for essential traffic.
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