Intellectual property rights
Foreword
Introduction
1. Scope
2. References
3. Abbreviations
4. Definitions
4.1 Private network
4.2 Public network
4.3 Quality aspects
4.4 Network elements
4.5 Types of connections
5. Reference configurations
6. Basic planning principles
6.1 The Impairment Factor Method
6.2 The E-model
7. Parameters subject to Planning and their limits
7.1 Overall loudness rating
7.2 Echo
7.3 Transmission Time in Echofree Connections
7.4 Stability
7.5 Quantization Distortion Units
7.6 Equipment Impairment Factor
7.7 Advantage Factor A
7.8 Limits at the Public / Private Interface with respect
to Echo
7.9 Parameters not directly subject to Transmission
planning
7.10 Synchronization
8. Calculation of End-to-End parameters
8.1 Overall loudness rating
8.2 Talker echo
8.3 Transmission Time in Echofree Connections
8.4 Quantization Distortion Units
8.5 Equipment Impairment Factor
9. Application of the E-Model in Planning Practice
9.1 General
9.2 Reference configurations
9.3 Handling of the Input Parameters
9.4 Interpretation of the results
9.5 Application of the E-Model for Configurations with
two Echo Paths
9.6 Use of Computer programs
9.7 Default Values and Parameter Ranges
10. Rules for the Insertion of Echo Cancellers
10.1 Introduction
10.2 Characteristics of the Echo cancellers
10.3 Limits for the Application of Echo cancellers
10.4 Determination of the Location
10.5 Handling of Echo Cancellers in the E-Model
11. Realization of planning
11.1 General
11.2 Determination of the specific Requirements
11.3 Definition of the Reference Configurations
11.4 Determination of the Transmission Parameters
11.5 End-to-End Calculation with the E-Model
11.6 Analysis of the results
Annex A (informative): General Guidance and Information on
Transmission parameters
A.1 General
A.2 Loss definitions
A.3 Loudness ratings
A.4 Definitions of Levels and their units
A.5 Delay and echo
A.6 Stability
Annex B (informative): The E-Model
B.1 General
B.2 Reference Connection and used Transmission
parameters
B.3 Calculation of the Transmission Rating Factor R
B.4 Quality Measures derived from the Transmission
rating factor R
Annex C (informative): Transmission Parameters for specific
elements
C.1 Elements in Private networks
C.2 Transmission Parameters of Public Networks
C.3 Transmission Parameter of the Far-end Termination
Annex D (informative): Planning Examples
D.1 Planning Example for the European Scenario
D.2 Planning Example for the North American Scenarios
Bibliography
History