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Orion Consultancy

SS7

Overview

A concise overview of Intelligent networking within the SS7 network and how it functions.

Potential delegates

Anyone associated with the Telecommunications Industry, who requires a good understanding of the technology involved.

Prerequisites

Attendance of Orion’s Telecommunications, Voice and data, or Signalling Systems course or equivalent practical experience.

Duration

1 day

Course Objectives

By the end of the course delegates will be able to:

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describe the SS7 Physical Network

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identify the function of the SS7 Network nodes

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describe the operation of the various protocol elements within SS7

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describe the procedure for a freephone (0800) database inquiry

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describe a basic call set-up and clear (ISUP) within SS7

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identify the functions of the MTP layers

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describe the Signalling Connection Control Party protocol and procedures

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describe the Transaction Capabilities Application Part protocol and procedures

 

Course Content

Introduction

Signalling - Per Trunk Signalling, Common Channel Signalling.SS7 Signalling Types – Connection Oriented Signalling, Connectionless Signalling. Modes of Operation – Associated Mode, Quasi-Associated Mode. The SS7 Network – Service Switching Point, Signalling Transfer Point, Service Control Point, Call Management Services Database, Number Portability Database, Line Information Database, Home Location Register, Visitor Location Register. Signalling Links – Link Types, Linksets, Signaling Routes.

 SS7 Protocol Overview

Overview of the SS7 Layer Model, Levels; One, Two, Three, Four. Covering MTP, SCCP, TCAP INAP and ISUP

 The SS7 Signalling Units

Signalling Units Network Addressing – Point Codes, Global Title Translations. The SS7 Signalling Units – Overview, Fill-In Signal Units, Link Status Signal Units, Message Signal Units Signal Unit Fields – Length Indicator, Flag, Service Information Octet, Backward Sequence Number, Backward Indicator Bit, Forward Sequence Number, Forward Indicator Bit. Flow Control – Primitives.

 SS7 Protocol Higher Layers and Functions

Message Transfer Part – MTP Level 1, MTP Level 2. MTP level 3, Signalling Message Handling, Signalling Network Management. Signalling Connection Control Part – Connection Orientated Signalling, Connectionless Signalling, Global Title Translations. Transaction Capabilities Application Part – Transaction Portion, Component Portion, Unstructured Dialogue, Structured Dialogue. User Part –, ISUP Messages, Basic ISUP Call Control. IN Procedures and routing.