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     Signalling architecture for IP based SMS over NGN  
       5.1      Architecture model   
        5.2     Functional entities in support of IP based SMS
        5.3     Reference points        
 6     Signalling requirements for IP-based SMS over NGN
        6.1     General requirements             
        6.2     Transport layer interworking requirements    
        6.3     Service layer interworking requirements         
 7     Security considerations