Table of Contents

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions, symbols and abbreviations
  3.1 Definitions
  3.2 Symbols
  3.3 Abbreviations
4 The receiver
  4.1 Area of application
  4.2 Operate and non-operate requirements
  4.3 Speech immunity performance
5 The transmitter
6 Electrical characteristics
Annex A (normative): Speech immunity test signal
Annex B (informative): Example test signal
Annex C (informative): Bibliography
History

Abstract

Presents the level of detail that will enable manufacturers of telecommunications equipment incorporating DTMF signalling, to design the equipment such that it facilitates highly reliable signalling. This should not be taken to imply that any DTMF signalling system that fails to meet all the criteria described in the present document will not provide reliable signalling.

General Product Information

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