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 Calling line identification restriction
6.1 Description
6.2 Operational requirements
6.3 Coding requirements
6.4 Signalling requirements
6.5 Interaction with other supplementary services
6.6 Interactions with other networks
6.7 Signalling flows
6.8 Parameter values (timers)
6.9 Dynamic description