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Signaling System No. 7 SS7/C7): Protocol, Architecture, and Services Networking Technology Jeff Hewett, Lee Dryburgh
Publisher: Cisco Press

Signaling System #7 (SS7) is a telecommunications protocol suite defined by the ITU-T which is used by the telephone companies for interoffice signalling SS7 uses out of band or common-channel signalling (CCS) techniques, which uses a The primary function of SS7 / C7 is to provide call control, remote network management, and maintenance capabilities for the inter- office telephone network. Protocol Structure - SS7/C7: Signaling System # 7 for Telephony Signaling. 7 (SS7/C7): Protocol, Architecture, and Services. 7) was developed to call management and service signalling requirements of the digital networks based on the full duplex channels. Diameter is highly used in 3GPP latest releases for AAA services (Authentication, Authorization and Accounting), Control Transport Protocol), where it can have more reliable communication. 7 is more commonly known by the acronyms SS7 and C7. SS7/C7 is a signaling network and protocol that is used worldwide to bring telecommunications networks, both fixed-line and cellular, to life. 7 (SS7/C7): Protocol, Architecture, and Services · Cisco Press, 2004. 7 (SS7C7) Protocol Architecture and Services.chm. 7 network protocols specified by the ITU-T recommendations as well as national or regional variants defined within Short Message Service (SMS) and Enhanced Messaging Service (EMS), where SS7 is used not only for signaling but also for content transport of alphanumeric text. 7 (SS7/C7): Protocol, Architecture, and Services will help you understand SS7 from several perspectives. Strictly speaking, the term C7 (or, less commonly, CCS7) refers to the international Signaling System No. Diameter and SS7 are signalling protocols generally used in telecommunication systems.