1     Scope           
 2     References 
 3     Definitions 
        3.1     Terms defined elsewhere        
        3.2     Terms defined in this Recommendation            
 4     Abbreviations, acronyms and symbols           
        4.1     Abbreviations and acronyms  
        4.2     Symbols          
 5     Conventions             
 6     General description               
 7     Options of possible physical interfaces          
 8     Terminal digital interface specification (speech signal processing in
headset)               
        8.1     Communication mode               
        8.2     Multimedia playback mode     
 9     Digital headset specifications (wireless)        
        9.1     Communication mode               
        9.2     Multimedia playback mode     
10     Terminal digital interface specification (speech signal processing in
the terminal)     
Bibliography