Date Added: Dec 2012
The IP Multimedia Subsystem (IMS) based on SIP as mechanism signaling and interfaces with other servers using OSA (Open Service Access) and CAMEL (Customized Applications for Mobile network Enhanced Logic). Is responsible for the interconnection of IP packets with other network, IMS support data communication services, voice, video, messaging and web-based technologies. In this paper the authors present a distributed design of architecture that turns up some challenges of transparent mobility on the secured IMS architecture. They introduced the architecture with clustering database HSS and automatic storage of data files that give a secure access to database.