CONTENTS

 1     Introduction
 2     Scope
 3     References
 4     Terms and definitions
 5     Abbreviations
 6     UPT number structure
        6.1     Scenario 1 – Home-related scheme
        6.2     Scenario 2 – Country-based scheme
                  6.2.1     Scenario 2 NDC structure
                  6.2.2     Scenario 2 SN structure
        6.3     Scenario 3 – Country code-based global scheme
                  6.3.1     Scenario 3a
                  6.3.2     Scenario 3b
 7     Evolution of numbering and dialling for UPT
 8     Number administration responsibility
 9     National prefix option for UPT
10     UPT service profile access
       10.1     UPT access number (UPTAN)
       10.2     UPT access code (UPTAC)
11     UPT identification and authentication requirements
       11.1     UPT user authentication at the user-network interface
                 11.1.1     UPT user-network authentication with a UPT number and PIN
                 11.1.2     UPT user-network authentication with an E.212-based PUI
       11.2     UPT user authentication at the network-network interface
       11.3     Information content and structure of the PUI
       11.4     Derivation of the UPT global title from the PUI
12     Recommendation history
Annex A – Items for further study