Transcription of IP Multimedia Subsystem : Principles and Architecture
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IP Multimedia Subsystem : Principles and Architecture
IP Multimedia Subsystem : Principles and Architecture Simon ZNATY and Jean-Louis DAUPHIN. EFORT. 1 Introduction Many successful services are available today on the Internet, including e-mail, web browsing, chat, and audio and video downloading/streaming. Internet telephony and Multimedia Communications Services, some of the latest to be launched, are already being proposed by Microsoft MSN, AOL and Skype. As telephony is simply another Internet application, any company, even if it is not an access provider, can provide a telephony service. The above actors are already active in this market, but are all proposing proprietary Internet telephony solutions. In this context, the operators which telephony service was their core business, are facing the following alternatives : 1. Reposition their business towards value-added IP services including telephony, becoming global service providers.
Copyright EFORT 3 database maintains each end user’s service profile. Stored in a central location, this information could include location information, service ...
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