Table of Contents

Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
  3.1 Abbreviations
4 Countries applying (pr)TBR
5 Scope interpretation issues
6 Possible extensions of the application of TBR
  6.1 Voice telephony justified case TE
  6.2 Loop Disconnect dialling function
  6.3 Multi-line TE
  6.4 Series/parallel connection
7 Impact upon non-PSTN TE
8 Conclusions
  8.1 TBR 21/37 scope issues
  8.2 Introduction of TBR 38
  8.3 Progression of prTBR 37
  8.4 Testing detail
  8.5 Functions outside the scope of TBR 21
  8.6 Non-PSTN TE
  8.7 New activities required to implement the
      conclusions of the present document
Annex A: Possible additional test detail for voice TE
     A.1 Introduction
     A.2 Normative references
     A.3 Voice signal to be used during tests
     A.4 Electro-acoustic interfaces
     A.5 Electrical interfaces simulations
     A.6 Requirements Table (TBR-RT)
History

Abstract

Studies the problems concerning the application of TBR 21. It does not specify detailed solutions or situations if they are not possible to define within a short term. Note: This is a way for ETSI ATA experts to express their view, just after the publication of the vote results of TBR 21.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	ATA