CONTENTS

 1 Scope 
2 References 
3 Definitions  
        3.1     Terms defined elsewhere    
        3.2     Terms defined in this Recommendation       
4 Abbreviations and acronyms        
5 Conventions     
6 General requirements for IMS-based real-time conversational multimedia services 
7 IMS-based real-time conversational multimedia services architecture details          
8 Service features for IMS-based real-time conversational multimedia services         
9 PSTN/ISDN simulation services  
        9.1 Introduction           
        9.2 General  
        9.3 Interworking considerations           
        9.4 Originating identification presentation (OIP)
        9.5 Originating identification restriction (OIR)   
        9.6 Terminating identification presentation (TIP)           
        9.7 Terminating identification restriction (TIR)   
        9.8 Malicious communication identification (MCID)      
        9.9 Anonymous communication rejection (ACR)          
       9.10 Communication diversion (CDIV) 
       9.11 Communication hold (HOLD)       
       9.12 Communication barring (CB)        
       9.13 Completion of communication to busy subscriber (CCBS) 
       9.14 Communication waiting (CW)       
       9.15 Message waiting indication (MWI)
       9.16 Conference (CONF)        
       9.17 Advice of charge (AOC)  
       9.18     Explicit communication transfer (ECT)       
       9.19 Reverse charging (RC)      
       9.20 Use of authorization option in relation to PSTN/ISDN simulation services  
10 Universal personal telecommunication (UPT)       
11 Customized ring-back tone (CRBT)        
12 Customized ringing tone (CRT)   
13 Additional services and service features   
14 Security consideration     
Appendix I – Multimedia conference (MultiCONF)     
Appendix II – IP Centrex     
Appendix III – Mappings between IMS‑based real-time conversational multimedia services and service features     
Appendix IV – Implementation scenarios for IMS-based real-time conversational multimedia services     
       IV.1 Customized announcement
       IV.2 Group communication       
       IV.3 Customized routing           
       IV.4 Click-to-dial         
       IV.5 User profile management   
       IV.6 Customized background music      
       IV.7 Ring pattern          
       IV.8 Personal identifier 
       IV.9 Unsuccessful communication notification    
      IV.10 Originating communication screening        
      IV.11 Terminating communication screening       
      IV.13     Customized ringing           
Appendix V – Table of service interactions between pairs of PSTN/ISDN simulation services     
Bibliography