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 PSTN/ISDN evolution to NGN
6.1 PSTN/ISDN emulation
and simulation
6.2 Interfaces
6.3 Adaptations
7 Aspects to consider
7.1 Transport
7.2 Signalling and control
7.3 Management
7.4 Services
7.5 Operation,
administration and maintenance (OAM)
7.6 Naming, numbering and
addressing
7.7 Accounting, charging
and billing
7.8 Interworking
8 Service requirements by
national regulatory bodies
9 Emergency telecommunications in NGN
10 Security aspects of evolution
Appendix I – PSTN/ISDN emulation and simulation scenarios
I.1 Emulation scenarios
I.2 Simulation scenarios
I.3 Legacy and NGN user equipment connected through an NGN
I.4 Scenarios involving interworking
I.5 Emulation and simulation scenarios involving customer networks
Appendix II – Examples of emulation and simulation network
structure
II.1
Examples of emulation and simulation network structure
II.2 Basic connection
patterns
Appendix III – Examples of signalling protocols for emulation
and simulation
III.1 Signalling for
PSTN/ISDN emulation
III.2 Signalling for PSTN/ISDN simulation
Appendix IV – Examples of emulation of PSTN and N-ISDN bearer
services
Appendix V – Billing system evolution scenarios
Bibliography