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National Institute of Science & Technology

SIGNALING SYSTEM NO 7 (SS7). Technical seminar SIGNALING SYSTEM NO-7 (SS7). National Institute of Science & Technology. Submitted by : Sunanda Panda Roll No :EC200157246 Under the guidance of N. Shrinivasu. [1]. SUNANDA PANDA. SIGNALING SYSTEM NO 7 (SS7).

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National Institute of Science & Technology

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  1. SIGNALING SYSTEM NO 7 (SS7) Technical seminar SIGNALING SYSTEM NO-7 (SS7) National Institute of Science & Technology Submitted by : Sunanda Panda Roll No :EC200157246 Under the guidance of N. Shrinivasu [1] SUNANDA PANDA

  2. SIGNALING SYSTEM NO 7 (SS7) INTRODUCTION TO SIGNALING SYSTEM • PSTN signaling • Common Associated Signaling (CAS) • Common Channel Signaling (CCS) National Institute of Science & Technology [2] SUNANDA PANDA

  3. SIGNALING SYSTEM NO 7 (SS7) INTRODUCTION TO SS7 • Evolution of SS7 • Features of SS7 • Functions of SS7 National Institute of Science & Technology [3] SUNANDA PANDA

  4. SIGNALING SYSTEM NO 7 (SS7) SIGNALING ARCHITECTURE • SS7 signaling links • A—Links • B—Links • C—Links • D—Links • E—Links • F--Links National Institute of Science & Technology Figure : SS7 signaling Links [4] SUNANDA PANDA

  5. SIGNALING SYSTEM NO 7 (SS7) SIGNALING POINTS OF SS7 • Service Switching Points (SSP) • Signal Transfer Points (STP) • Service Control Points (SCP) National Institute of Science & Technology Figure : SS7 signaling points [5] SUNANDA PANDA

  6. SIGNALING SYSTEM NO 7 (SS7) SIGNALING LINK MESSAGES • Message signal unit (MSU) • Link status signal unit (LSSU) • Fill-in signal unit (FISU) National Institute of Science & Technology [6] SUNANDA PANDA

  7. SIGNALING SYSTEM NO 7 (SS7) FORMATS OF DIFFERENT SIGNALING LINK MESSAGES Figure 1:MSU format National Institute of Science & Technology Figure 2:LSSU format Figure 3:FISO format [7] SUNANDA PANDA

  8. SIGNALING SYSTEM NO 7 (SS7) SS7 PROTOCOL STACK Different layers of SS7 protocol stack MTP,SCCP,TUP,ISUPTC,OMAP & ASE Figure :. The OSI Reference Model and the SS7 Protocol Stack National Institute of Science & Technology [8] SUNANDA PANDA

  9. SIGNALING SYSTEM NO 7 (SS7) MESSAGE TRANSFER PART (MTP) • Signaling Link Message • Signaling Network National Institute of Science & Technology [9] SUNANDA PANDA

  10. SIGNALING SYSTEM NO 7 (SS7) ISDN USER PART (ISUP) • ISUP message structure • Initial address message • Address complete message • Answer message • Release message • Release complete messages National Institute of Science & Technology [10] SUNANDA PANDA

  11. SIGNALING SYSTEM NO 7 (SS7) TRANSACTIONS CAPABILITIES APPLICATION PART (TCAP) • Transaction portion • Component portion National Institute of Science & Technology [11] SUNANDA PANDA

  12. SIGNALING SYSTEM NO 7 (SS7) SERVICES PROVIDED BY SS7 • There are 3 main types of services provided by Ss7 network. • The Touchstar • 800 services • alternate billing services National Institute of Science & Technology [12] SUNANDA PANDA

  13. SIGNALING SYSTEM NO 7 (SS7) USES AND APPLICATIONS OF SS7 • Thet use of SS7 is not for call setup and teardown, but rather for accessing databases. • Examples of some applications supported by SS7 are: • • PSTN and mobile services • • ISDN (Voice and Data) • • Interaction with Network Databases and Service • Control Points for ervice control • • Operations dministration and Maintenance of Networks National Institute of Science & Technology [13] SUNANDA PANDA

  14. SIGNALING SYSTEM NO 7 (SS7) ADVANTAGES OF SS7 • Faster call set-up • Greater trunking (or Queuing) efficiency • Information transfer National Institute of Science & Technology [14] SUNANDA PANDA

  15. SIGNALING SYSTEM NO 7 (SS7) GLOBAL SS7 MARKET OVERVIEW • SS7 related equipment National Institute of Science & Technology • SS7 enable equipment [15] SUNANDA PANDA

  16. SIGNALING SYSTEM NO 7 (SS7) CONCLUSION • • SS7 is the world’s largest data network. It links telcos, cellular long-distance networks nationwide and worldwide. • • SS7 interconnects thousands of telephone company providers into one common signaling network. • • SS7’ll continue to evolve as new features are added to the Advanced Intelligent Network. National Institute of Science & Technology [16] SUNANDA PANDA

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