Table of Contents

 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     Characteristics of the DSN functional architecture             
 7     DSN functional architecture    
        7.1     DSN architectural functions          
        7.2     Reference points              
 8     Security considerations             
Annex A – Relationship between the DSN functional architecture  and the NGN functional architecture    
        A.1     Functional mapping between DSN functions and NGN functions        
        A.2     Relationship between the DSN functional architecture and NGN functional architecture    
Appendix I – Information flows for DSN service    
        I.1     General information flows              
        I.2     Content delivery               
        I.3     Information flows for MMTel       
Appendix II  DSN model