1     Scope 
 2     References 
 3     Terms and definitions       
        3.1     Definitions 
        3.2     Abbreviations and acronyms          
 4     NGN release 2 environment overview      
        4.1     Transport functions
        4.2     Network-network interfaces (NNIs)          
        4.3     User network interfaces (UNIs)     
        4.4     User profile functions         
        4.5     End-user functions 
        4.6     Gateway functions 
 5     NGN release 2 services   
        5.1     Multimedia services (NGN R1 services)     
        5.2     PSTN/ISDN emulation services (NGN R1 services)          
        5.3     PSTN/ISDN simulation services (NGN R1 services)          
        5.4     Data communication services (NGN R1 services)   
        5.5     Public interest aspects (NGN R1 services) 
        5.6     IPTV services (NGN R2 services) 
        5.7     Enterprise network services           
        5.8     Converged web browsing services (CWBS) (NGN R2 service)     
        5.9     USN applications and services (NGN R2 service)  
       5.10     Tag-based identification applications and services (NGN R2 service)         
       5.11     Managed delivery services (MDS) (NGN R2 service)       
Appendix I – Service descriptions and use cases     
        I.1        General use cases
        I.2        Business use cases           
        I.3        Medical use cases
Appendix II – Examples of categorization of services     
       II.1     Basic/enhanced services versus service/transport stratum     
       II.2     Unicast/multicast/broadcast versus real-time/non-real-time: General mapping           
       II.3     Business mapping   
       II.4     Medical mapping