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 Introduction
 6 Service provider discovery process using SIP messages     
        6.1 SUBSCRIBE/NOTIFY message   
        6.2 MESSAGE message        
 7 Service discovery process using SIP messages     
        7.1 Procedure in case SD provider has SIP server functionality    
        7.2 Procedure in case SD provider does not have SIP server functionality