… These alterations will be useful in ensuring availability of user’s handset capabilities to
IMS … in the IP multimedia subsystem of UMTS.IEEE Network, 17(3):51–57, May/June 2003 …

… and becomes the bottleneck to high service availability. We propose a design to provide fault…
In data-plane, we decompose multimedia traffic flows and partition each multimedia service …

… tolerant architecture combined an IMS (IP multimedia subsystem), which is a information …
effects and robustness in terms of both service availability and mean time to security failure. …

… This analysis also studies the effects of 3GPP’s security directions (ie, IMS architectures) on
… and integrity as well as architecture’s availability and users’ privacy. A thorough review of the …

… Later we looked at the IP multimedia subsystem (IMS) architecture and more importantly
the 3GPP presence framework as well as the Session Initiation Protocol (SIP). SIP is a core …

… expect high voice and video quality, but also high availability, speed and reliability in …
Motivated by the importance of signaling efficiency for fast call setup, in this paper we analyze the …

… Networks'(NGN) evolution is towards providing multiple and multimedia services to users
through ubiquitous networks. The aim of IP Multimedia Subsystem (IMS) is to integrate mobile …

… Availability requirements for such systems are in the region of 0.99999 (“five nines”), with …
[23] present a detailed availability analysis of an IBM BladeCenter comprising up to 14 …

Internet Protocol Multimedia Subsystems (IMS) is an internationally standardized Next
Generation Networking (NGN) architecture for telecom operators in order to provide mobile and …