Signaling System No. 7 (SS7/C7)

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This practical guide offers a comprehensive overview of the world's most popular signaling system, including SIGTRAN, GSM-MAP, and Intelligent Networks. It provides in-depth coverage of SS7 protocols, detailing implementation aspects and real-world examples of SS7 over IP (SIGTRAN). The content addresses SS7/C7 from both North American and European perspectives, ensuring a broad international understanding of the technology and standards involved. Key topics include mobile wireless concepts and signaling, particularly the mobile application part (MAP), and a thorough explanation of Intelligent Network (IN) protocols, such as INAP/AIN. SS7 is a globally utilized signaling network and protocol that underpins both fixed-line and cellular telecommunications. It plays a crucial role in setting up phone calls, enabling cellular roaming, messaging, and delivering converged voice and data services. As the point of interconnection between converging voice and data networks, SS7 is essential for anyone involved in telecommunications. This guide will deepen your understanding of SS7's framework and architecture, examining its application in modern telecommunications services and detailing each level of the SS7 protocol down to the bit level of messages. Additionally, it discusses SIGTRAN standards, illustrating the transition from SS7 to IP and how SS7 information is transported over IP networks.