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