Table of Contents

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Architecture
   4.1 Optimal routeing for basic
       mobile-to-mobile calls
   4.2 Optimal routeing for conditional call
       forwarding
5 Optimal routeing for basic mobile-to-mobile
   calls: message flows
   5.1 Successful outcome
   5.2 Unsuccessful outcome
6 Optimal routeing for conditional call
   forwarding: message flows
   6.1 Early call forwarding
   6.2 Late call forwarding
7 Interactions between optimal routeing and
   supplementary services
   7.1 Call forwarding
   7.2 Closed User Group (CUG
   7.3 Advice of Charge
   7.4 Call barring
   7.5 Other supplementary services
8 Interactions between optimal routeing and
   other network features
   8.1 Operator determined barring
   8.2 CAMEL
9 Functional requirements of entities performing
   optimal routeing
   9.1 Charging requirements for optimal routeing
   9.2 Functional behaviour of VMSCA
   9.3 Functional behaviour of VLRA
   9.4 Functional behaviour of GMSC
   9.5 Functional behaviour of HLR
   9.6 Functional behaviour of VLRB
   9.7 Functional behaviour of VMSCB
10 Contents of messages
   10.1 Messages on the B interface (MSC-VLR)
   10.2 Messages on the C interface (MSC-HLR)
   10.3 Messages on the D interface (VLR-HLR)
   10.4 Messages on the E interface (MSC-MSC)
Annex A (informative): Handling of an IAM at an MSC
Annex B (informative): Change Request History
History

Abstract

Covers technical realisation for the first phase of the network feature Support of Optimal Routeing (SOR). This phase of SOR specifies a procedure to route a call from one mobile subscriber directly to another mobile subscriber, a method to forward calls when a called mobile subscriber is busy, not reachable, or does not reply, a method to combine the optimal routeing detailed in the first bullet point with the optimal routeing explained in the second bullet point above.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	3GPP CN