1     Introduction   
 2     References
 3     Applicability to speech transmission quality – Use of the E-model   
 4     Recommendations for one-way transmission time      
 5     Estimating end-to-end delay based on assemblies of transmission elements 
Annex A – End-to-end delay estimation    
        A.1     Planning values for the delay of transmission elements
        A.2     Codec delay       
        A.3     Delay due to IP delay variation buffer   
Appendix I – Delay introduced by coder-related processing    
Appendix II – Guidance on one-way delay for voice over IP    
       II.1     Introduction        
       II.2     Achieving satisfactory delay