CONTENTS

 1     Scope 
 2     References 
 3     Definitions  
 4     Abbreviations   
 5     Description
 6     Operational requirements 
 7     Primitive definitions and state definitions    
 8     Coding requirements        
 9     Signalling procedures at the coincident S_B and T_B reference point   
10     Procedures at the T_B reference point for interworking with private B-ISDNs        
11     Interworking with other networks
12     Interactions with supplementary services  
13     Parameter values
14     Dynamic description (SDLs)       
Annex  A  –  Extensions for symmetric call operation    
Annex  B  –  Transit network selection    
Annex  C  –  Amendments to Recommendation Q.2951 to support calls/connections using the procedures of Recommendation Q.2971    
Annex  D  –  Amendments to Recommendation Q.2957 to support calls/connections using the procedures of Recommendation Q.2971    
Annex  E  –  Handling of the End-to-end transit delay information element    
Annex  F  –  SDL Diagrams