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One of the main goals of moving to Next Generation Networks (NGN) is an integrated access to multimedia services like VoIP, and IPTV. The primary signaling protocol in these multimedia services is Session Initiation Protocol (SIP). This protocol, however, is vulnerable against attacks, which may reduce the Quality of Service (QoS), an important feature in NGN services. One of the most frequent attacks...
Security is a major requirement on every telecommunications system. Everyday brings new technologies, techniques and standards; in order to guarantee these telecommunication systems a complete solution to secure networks. Since IP Multimedia Subsystem (IMS) is an evolving standard that intends to support Next Generation Networks (NGN) and Next Generation Mobile Networks (NGMN), its security techniques...
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