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Signaling System 7 (SS7). Unit 4. 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.
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Signaling System 7 (SS7) Unit 4
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.
Originating Switch LNP processing Direct to Recipient Switch