1. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration : Unit 4 Slide 1 Unit 4 Signaling System 7 (SS7)

2. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 2 Objectives Describe SS7, its purpose, history, states and signaling  Describe what signaling system 7 is.  List and explain the SS7 Node types.  List the different classes of SSP’s.  Describe the differences between CAS and CCS signaling.  Trace the reasoning why SS7 was developed.  Explain what Point Codes are and why they are used.  Describe the different point code formats.  Explain the protocols in the SS7 upper layer.  Explain the various Intelligent services that are provided to subscribers.

3. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 3 Basic SS7 Device Icons

4. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 4 National and International SSP’s

5. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 5 North American Switch (SSP) Hierarchy

6. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 6 Placement of SCP

7. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 7 Quasi-Associated Signaling

8. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 8 Non-Associated Signaling

9. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 9 Links within a Link Set

10. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 10 A-, B-, and C- links

11. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 11 OPCs, DPCs and APCs Interconnected

12. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 12 The Onion-Like Layers of the ANSI Point Code

13. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 13 ITU Point Code Structure

14. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 14 Normal Retransmission Procedure

15. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 15 Congestion Timer Operation

16. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 16 Call Leg CIC Assignments

17. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 17 Relationship between FEs and PEs in the IN

18. © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 4 Slide 18 Originating Switch LNP processing Direct to Recipient Switch