ETR 231 : 20001

Foreword
1 Scope
2 References
3 Abbreviations and legend of figures
   3.1 Abbreviations
   3.2 Legend of figures
4 Definitions
5 UPT call types and basic UPT routeing model
6 UPT InCall routeing
   6.1 Isolated IN based InCall routeing
   6.2 IN based InCall routeing
   6.3 InCall routeing through an assisting network
   6.4 Enhancement of the Basic UPT routeing model for InCalls
7 UPT OutCall routeing
   7.1 Isolated IN based OutCall routeing
   7.2 IN based OutCall routeing
   7.3 OutCall routeing through an assisting network
8 UPT OutCall/InCall routeing
9 UPT service profile management call
10 Conclusion
Annex A: Examples on international UPT routeing
      A.1 Introduction
      A.2 IN based routeing
      A.3 Isolated IN based routeing or use of assisting network
      A.4 Routeing through two UPT serving exchanges
Annex B: UPT routeing with PLMNs
      B.1 Introduction
      B.2 Examples on International UPT routeing to PLMNs
History

Deals with Universal Personal Telecommunication (UPT) call routeing in the user plane for incoming and outgoing calls, calls from a UPT user to a UPT user, and service profile management calls. Procedures for each type of calls, although they are not addressed in this ETR, are outlined in order to provide an understanding on the call phases required in routeing.