Service-oriented communication is a new trend in the industry to enable communication through a service-oriented architecture (SOA) and thereby package communications as services, which opens a new paradigm of Web service-based Voice Over Internet Protocol communication, which is extensible and can be easily integrated in end-to-end SOA solutions. In this paper, we proposed the communication components-based open multimedia conferencing Web service over IP networks and mainly focus on the session and media signalling for multimedia conferencing Web service. Details including the multimedia conferencing multiple parties call control state machines and session management, the state life cycle management, and the signal flows for multimedia conferencing scenarios, also including the Simple Object Access Protocol messages mapping to the asynchronous events. The session and media signalling management also provides the Web services interfaces for triggering conferencing session establishment and is further responsible for all necessary media signalling towards a proper media server. In addition, a prototype has been implemented, and its performance has been measured and analysed. Finally, we give the conclusions and future work.

Recent advances in audio/video processing, communication protocols, and Internet technologies have allowed for high-quality multimedia conferencing services at relatively low cost in the digital home. This paper presents a high concurrent and ubiquitous home multimedia conferencing platform using a service component architecture. For the proposed architecture, we focus on the design of a home multimedia conferencing platform framework, as well as home conferencing components, session management for media signaling, load balancing, and concurrent control for conferencing process management. We also present an efficient network address translation and a firewall traversal schema. High concurrency of the proposed architecture is achieved by coordinated distributed home conferencing services and concurrent control for conferencing process management. The performance of the proposed home multimedia conferencing platform has been evaluated, and the results show that the proposed architecture greatly improves the concurrency.

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Service-oriented communication is a new trend in the industry, which opens a new paradigm of Web service based VoIP communication and can be easily integrated in end-toend SOA solutions. In this paper, we proposed the service building block based multimedia conferencing Web service over IP networks, and mainly focus on the design and implementation of the multimedia conferencing service entities, then corresponding SIP signal flows, session management and state machines, service messages adaptor and also a prototype has been developed and the performance has been measured. Finally, give the conclusions and future work.