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 web service component in NGN 
        6.1    
Web service component  
        6.2    
Service classification using the web service component           
 7    
Requirements for the web service component in NGN        
 8    
Functional architecture of the web service component       
        8.1    
High-level NGN architecture with the web service component                
        8.2    
Functional entities for the web service component    
 9    
Interworking between the web service component and other service
components        
        9.1    
Interactions for the support of legacy web services   
        9.2    
Interactions for the support of web-based conversation services           
        9.3    
Interactions for the support of web-based streaming services 
10    
Security considerations             
Appendix I – Relationship among NGN service specific components with the
web service component in the NGN architecture     
Appendix II – Relationship of web service component functions with other
NGN functions     
       II.1    
Relationship between ITU-T Y.2235 and ITU-T Y.2024         
       II.2    
Related functions for the web service in NGN            
Appendix III – Information flows for services using the web service
component in NGN     
      III.1    
Procedure for the support of legacy web services      
      III.2   
 Procedure for the support of web-based conversation services              
      III.3    
Procedure for the support of web-based streaming services    
Appendix IV – IETF activities related to the web service component in
NGN     
       IV.1    
IETF real-time communication in web-browsers (RTCWeb)  
Bibliography