1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Signalling architecture
6.1 Mixed architecture
6.2 Fully distributed architecture
6.3 Fully centralized architecture
7 Flow termination
8 Summary of interface-specific requirements
8.1 Requirements on the Rw interface
8.2 Requirements on the Rt interface
8.3 Requirements on the Rp interface
8.4 Requirements for the Rc interface
9 Security considerations
Bibliography