Simon Tsang

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This paper investigates the Feature Interaction problem, known from traditional telephony environments, in the context of internet appliances. The results are threefold. The first part of this paper introduces a service taxonomy supported by a list of example services. The second part discusses feature interactions between services for appliances. A(More)
Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is(More)
This document proposes the use of SIP for Network-capable appliances. It leverages standard SIP capabilities to directly communicate with appliances even when they are behind firewalls, NATs or other entities that prevent direct end-to-end communication. When combined with the recently proposed Instant Messaging and Presence SIP extensions these techniques(More)
A platform to support the development of experimental call models is presented. The platform, known as DESK, has been created specifically to aid the testing of novel Feature Interaction Detection and Resolution techniques. The paper presents an overview of DESK before going on to consider the detail of its implementation and the communication between its(More)
This paper presents the latest results from the ongoing Feature Interactions in Multimedia Systems (FIMS) project. The project comprises paper studies which aim to identify potential areas where the feature interaction problem may occur in networked multimedia services. The classification scheme for multimedia services and applications is presented. The(More)
This paper presents an extension of previous work and proposes a new interaction detection and resolution approach for Intelligent Networks (IN) which requires no " a priori " knowledge of interactions and maintains service privacy. Taking IN run-time issues into consideration, the proposed interaction detection approach monitored external service behaviour(More)