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The combination of the Call Session Control Function (CSCF) and application servers within the IP Multimedia Subsystem (IMS) architecture provides network operators a way to create new multimedia services on a low-cost, easy to manage, flexible and highly-integrated platform. Building applications on a high-availability CSCF/application server platform lowers the economic risk, the unpredictability of consumer adoption and go-to-market risks. Using the CSCF/application server platform, network operators can start out small and scale up as their subscriber-base increases. Applications running on a highly-integrated platform make real-time session management possible while providing operators with low-cost, scalable and manageable means for delivering novel subscriber services. However, selecting a transitional platform to stage a network for 10-gigabit architecture requires careful consideration and balancing of switchover costs, impact on network quality, return-on-investment and existing products or applications under development.
©2010 RadiSys Corporation
