1 Scope
2 References
3 Definitions
4 Abbreviations
5 Conventions
6 PSTN/ISDN
emulation in NGN
7 Service
and network
capabilities
7.1 Service
capabilities
7.2 Network
capabilities
8 Relevant
network elements
8.1 Application
server
8.2 Application
server gateway
8.3 User
profile server
8.4 Call
server
8.5 Gateways
8.6 Media
server (MS)
Appendix I – Mapping functional entities to network
elements
Appendix II – Basic call control scenario in call server‑based
PES
II.1 Intra CS-PES call
II.2 Scenario 5: Call between CS-PES user and PSTN,
ISDN or PLMN
II.3 Scenario 6: Inter CS-PES
call
II.4 Scenario 7: Call between CS-PES user and user
of other IP networks
II.5 Scenario 8: Call between two PSTN/ISDN/PLMN
users via CS-PES
Appendix III – Reference points and protocols
BIBLIOGRAPHY