Table of Contents

 1     Scope            
 2     References   
        2.1     ITU-T 
        2.2     IETF   
        2.3     ETSI   
        2.4     Broadband Forum           
 3     Definitions   
        3.1     Terms defined elsewhere
        3.2     Terms defined in this Recommendation     
 4     Abbreviations and acronyms  
 5     Emergency telecommunications (ET) and early warning description              
        5.1     General              
        5.2     Emergency telecommunications  
        5.3     Early warning   
 6     General considerations for emergency telecommunications and early warning            
 7     General functional requirements and capabilities               
        7.1     Emergency telecommunications  
        7.2     Early warning   
 8     General security guidelines and requirements       
        8.1     General guidelines            
        8.2     General requirements      
 9     Mechanisms and capabilities supporting emergency telecommunications in NGN      
        9.1     General              
        9.2     Service stratum
        9.3     Transport stratum            
        9.4     NGN access technology support   
10     End-to-end support for emergency telecommunications  
11     Mechanisms and capabilities supporting some aspects of early warning in NGN       
       11.1     General             
       11.2     Common alerting protocol (CAP)               
       11.3     Procedures for the registration of arcs under the alerting object identifier arc    
12     Service restoration priority      
13     Protection switching and restoration     
       13.1     General considerations  
       13.2     SDH protection architectures       
       13.3     Optical transport network (OTN) 
       13.4     Ethernet linear protection switching            
       13.5     Ethernet ring protection switching               
       13.6     Linear protection switching for transport MPLS (T-MPLS)   
       13.7     ATM protection switching            
       13.8     Protection switching for MPLS networks   
Appendix I – Emergency telecommunications categories    
        I.1                   Individual-to-authority emergency telecommunications           
        I.2                   Individual-to-individual emergency telecommunications          
        I.3                   Authority-to-authority emergency telecommunications            
        I.4                   Authority-to-individual emergency telecommunications           
Appendix II – Example use cases for early warning alert systems    
       II.1     Push model       
       II.2     Pull model         
Appendix III – Example ETS call/session flows for NGN    
Bibliography