Signalling Introductory

Overview This two-day general course on signalling and is designed for those who need to understand the underlying principles and practices of the main signalling protocols Duration - 2 Days.

Who will benefit

It is suited for people interfacing with the customer on the implementation of many types of circuits. Network/Systems Engineers/Operators/Planners, who need a good understanding of signalling before any specific protocol course.

Prerequisites

None, but an understanding of Telecomms would be advantageous.

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

By the end of the course delegates will be able to describe: • The general operation of signalling protocols within the telecommunications network • The different types of analogue signalling • The digital structure used for signalling • The Qsig network and protocol • The Qsig features and applications • The structure of the ISDN 3 Layer Reference Model • Functions and structure of the S/T Bus • The different types of Layer 2 frames and describe their uses • The SS7 network and protocol structure • The functions of the SS7 protocol layers • The different types of SS7 signalling units • Q.931 and ISDN User Part messages and functions • Call set-up examples for the major protocols

Course Content

Analogue Connections The local loop, PABX line signalling, Pulse dialling, Tone dialling, E & M signalling, Tone on idle signalling Digital Connections Digital transmission components of speech, Pulse code modulation (PCM), E1 framing structure, Channel associated signalling (CAS), Common channel signalling (CCS) CCS types, CCS usage Switching Methods Private Networking, Virtual Private Networks. Qsig Protocol User Benefits, Public ISDN Synergy, Feature Transparency, Innovation Specialised, Multi-Application Domain. Q Protocol stack, QSIG Basic Call Layer 3 - Sub-Layer 1, QSIG Generic Functional Layer 3 Sub-Layer 2 (GF), QSIG QSIG Supplementary Services and Additional Network Features ISDN Interfaces Devices and Protocol The Basic Rate "T" interface, the "S" interface, Basic rate interfaces, Primary Rate Interfaces, and Functional devices, Network Termination 1(NT1), Terminal Equipment. The BRI U connection, the BRI S/T connection. Point to point, point to multi-point. Channel types within ISDN; B, D and H channels. S/T reference point layer 1 frame structure, The 3 ISDN layers, Frame structure, Layer 2 protocol Service Access Point identity (SAPI), Terminal End-point Identifier (TEI), Q.931 message types and values, ISDN number format, Call set-up example, SS7 Network and Protocol The SS7 Network - Service Switching Point, Signalling Transfer Point, Service Control Point, Signalling Links - Link Types, Linksets Message Transfer Part, Signalling Connection Control Part, Transaction Capabilities Application Part, ISDN User Part, Network Addressing - Point Codes, Global Title Translations. The SS7 Signalling Units - Overview, Fill-In Signal Units, Link Status Signal Units, Message Signal Units. ISDN User Part messages, Call set-up example, ISDN to ISDN User Part mapping