1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
4 Abbreviations and acronyms
5 Conventions
6 General description
6.1 Introduction
6.2 Assumptions
6.3 Non-roaming scenario
6.4 Roaming scenarios
7 Architectural overview
7.1 Roaming with compatible SCFs between NGNs
7.2 Roaming with incompatible SCFs between NGNs
8 Functional architecture
8.1 Detailed functional architecture for network functions
8.2 Reference points
9 Security considerations
Appendix I – Information flows
I.1 Roaming with compatible SCFs between NGNs
I.2 Roaming with incompatible SCFs between NGNs