Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Loss and level planning
4.1 Overview
4.2 Half-channel loss and level plans
4.3 Loudness rating definitions
4.4 0 dBr Reference level point
4.5 Reference level
4.6 Harmonized half-channel loss and level plans
4.7 Regional full-channel loss and level plans
5 Requirements for the harmonized half-channel loss
and level plan
5.1 The Pan-European half-channel loss plan
5.2 The North American half-channel loss plan
Annex A (informative): Loss and level planning and
loudness ratings
A.1 Introduction
A.2 Send and receive levels
A.3 Telephone equipment loudness ratings
A.4 Interface-to-interface loss allocation
Annex B (informative): The Pan-European loss and level plan
B.1 Overview
B.2 The Pan-European ELR and loss plan derivations
B.3 The Pan-European full-channel loss plan
B.4 Calculation spreadsheet
Annex C (informative): The North American loss and level plan
C.1 Overview
C.2 The North American full-channel loss plan
Annex D (informative): Relationship of channel based loss plans
to Q.551
Annex E (informative): Bibliography
History