1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Overview of the model
     6.1 Model inputs
     6.2 Model outputs
7 Description of the computational model
     7.1 Audio quality assessing block
     7.2 Video quality assessing block
          7.2.1 Basic video quality ,    -                    .
          7.2.2 Network impairment factor ,    -                            .
     7.3 Audiovisual quality assessing block
     7.4 Audiovisual interaction delay assessing block
     7.5 Audiovisual media synchronization assessing block
     7.6 Videotelephony quality assessing block
8 Performance figures
Annex A  Coefficients in the parametric computational models
     A.1 Coefficients in the video quality assessing block
     A.2 Coefficients in the audiovisual quality assessing block
     A.3 Coefficients in the audiovisual interaction delay and audiovisual media synchronization assessing blocks
     A.4 Coefficients in the videotelephony quality assessing block
Appendix I  Equipment impairment factor parameters in the audio quality assessing block
Appendix II  Overview of databases used for model development
Bibliography