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The IP Multimedia Subsystem (IMS) is a promising technology, designed to provide IP based telephony and real-time multimedia services. The 3 GPP specifications define a complex IMS architecture for the convergence of voice, video and data. It enables provisioning variety of multimedia services, such VoIP, video streaming, conferencing, instant messaging,(More)
This article proposes a solution for two issues in current communications. Firstly, that IMS suffers from client inexistence. Secondly, that mobile operators want to give the subscriber a possibility to access their VoIP network and efficiently cover special areas like airports. To address these problems, we have developed a novel service architecture,(More)
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