1 General
1.1 Basic philosophy of the functional description
1.2 Services supported by an ISDN
1.3 Generic description of required capabilities
2
Objectives of the functional description of the ISDN
3
Generic description model
3.1 General concepts
3.2 Static description model
3.3 Dynamic description model
4
Use of generic description model
4.1 Identification of ISDN
global functions
4.2 Identification of ISDN elementary functions
5
Functional realization of basic service requests
Annex A
A.1 List of identified basic elementary functions and additional
elementary functions (EFs) for the ISDN
A.2 Short description of elementary functions