Signaling System No. 7 (SS7/C7) - Protocol, Architecture and Services (Full Book)
Signaling System No. 7 (SS7/C7) - Protocol, Architecture and Services (Full Book) |
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Chapter 14. SS7 in the Converged WorldThe "Converged World" of Next Generation Networks (NGNs) brings with it the promise of voice, video, and data over a single broadband network. This transition from the traditional circuit-switched networks to packet-switched networks has been underway for many years, and Voice over IP (VoIP) is now leading the transition. The immediate benefits of NGNs are decreased cost of infrastructure and improved ease of management. Longer-term benefits include the ability to rapidly deploy new services. This chapter introduces the next generation architecture and presents a detailed discussion of the Signaling Transport (SigTran) protocols between the Media Gateway Controller (MGC) and the Signaling Gateway (SG). It also discusses the Transport Adaptation Layer Interface (TALI) and briefly covers an early Cisco SS7 over IP solution. Finally, it looks at the role of SS7 in decentralized VoIP signaling protocols such as Session Initiation Protocol (SIP) [124] and H.323 [125]. |
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