1 Definition
2
Description
2.1 General description
2.2 Specific terminology
2.3 Qualifications on the applicability to telecommunication
services
3
Procedures
3.1 Provision/withdrawal
3.2 Normal procedures
3.3 Exceptional procedures
3.4 Alternative procedures
4
Network capabilities for charging
5
Interworking requirements
5.1 Interworking with non-ISDNs
5.2 Interworking with private ISDNs
5.3 Interworking with public ISDNs
6
Interaction with other supplementary services
6.1 Call Waiting
6.2 Call Transfer
6.3 Connected Line Identification Presentation
6.4 Connected Line Identification Restriction
6.5 Calling Line Identification Presentation
6.6 Calling Line Identification Restriction
6.7 Closed User Group
6.8 Conference Calling
6.9 Direct-Dialling-In
6.10 Call Diversion
6.11 Line Hunting
6.12 Three-Party Service
6.13 User-To-User Signalling
6.14 Multiple Subscriber Number
6.15 Call Hold
6.16 Advice of Charge
6.17 Multi-Level Precedence
and preemption
6.18 Priority
6.19 Support of Private Numbering Plan
7
Dynamic description