+44 (0)1737 821590
Essential QSIG  |    A 1 day training course

QSIG training course description

A concise overview of QSIG, covering the development, current use and future of this private network signalling protocol.

What will you learn
  • Describe the use of QSIG.
  • Describe the evolution of QSIG.
  • Describe functionality of the QSIGProtocol Stack.
  • Describe functionality and use of the main Supplementary Services and Additional Network Functions within QSIG.
QSIG training course details

QSIG training course contents

  • Introduction
  • What is QSIG? User benefits, flexible interconnection, public ISDN synergy, feature transparency-end to end intelligence, innovation specialist features – heterogeneous environment.

  • Evolution of QSIG
  • Evolution of QSIG, ISDN PBX Networking, Specification forum (IPNS), QSIG standardisation. The ITU-T reference model extended for corporate networks.

  • QSIG Protocol
  • Q Protocol stack, QSIG basic call layer 3 – SubLayer 1, QSIG Generic Functional layer 3 Sub-Layer 2 (GF), QSIG protocols for supplementary services & ANF’s- Layer 3, Sub-Layer 3, Layer 3 Message Overview.

  • Supplementary Services and ANFs
  • QSIG supplementary services standardisation methodology.

  • QSIG Services and additional network features:
  • Advice of charge, Call Completion, (CCBS, CCNR), Call Forwarding and diversion (CFB, CFNR, CFU, CD), Services (CINT, CI, CO, CT, CW, DDI) Services cont. (DND, DNDO), Identification Services – (CLIP, COLP, CLIR, CNIP, CONP, CNIR), Other QSIG services and additional network features (Mobile, Multi Subscriber Number (MSN), Operator Services, Recall (RE), Sub-Addressing (SUB)), User to user signalling, compliance with services.

  • Conclusion – QSIG1
  • FAQ’s, European Computer Manufacturers Association. The Future.

Learning path



Based on customer ratings

A. L. - Schneider Electric

" Great learning experience."

L. D. - Pindrop

"Thorough and well delivered."

Training approach

This structured course uses Instructor Led Training to provide the best possible learning experience. Small class sizes ensure students benefit from our engaging and interactive style of teaching with delegates encouraged to ask questions throughout the course. Quizzes follow each major section allowing checking of learning.