CONTENTS

 1     Scope 
 
2     References
 3     Definitions    
 4     Abbreviations 
 5     Overall functional requirements
 6     IEPS features  
 7     Operational management of the IEPS   
Annex A – Features and techniques to enhance call completion    
        A.1     Priority dial tone
        A.2     Priority call setup message through national and international signalling network with call identifier    
        A.3     Priority indicator in bearer networks    
        A.4     Exemption from restrictive management controls        
        A.5     Survivable access and egress from end user location to PSTN/ISDN/PLMN   
        A.6     IEPS user verification    
        A.7     Special announcements on call progress 
        A.8     Special routing capabilities       
        A.9     Call forwarding  
       A.10     Abbreviated dialling     
       A.11     Attendant override      
       A.12     Authorization codes     
       A.13     Automatic call distribution      
       A.14     Call-by-call service selection    
       A.15     Call pickup      
       A.16     Call transfer     
       A.17     Call waiting      
       A.18     Calling number identification    
Appendix I – Criteria for the selection of IEPS users