Table of Contents

 1     Scope          
 2     References
 3     Definitions
        3.1     Terms defined elsewhere       
        3.2     Terms defined in this Supplement      
 4     Abbreviations and acronyms             
 5     Conventions            
 6     Scenarios in terms of interconnection supporting ETS            
        6.1     Emergency centres connected to CS-PES          
        6.2     Emergency centres connected to PSTN/PLMN interconnecting with IMS            
        6.3     Emergency centres connected to PSTN/PLMN interconnecting with IMS via CS-PESs    
 7     Interconnection framework supporting ETS
 8     Signalling requirements for interconnection of VoLTE-based network and other networks    
 9     Security considerations       
Bibliography