1
Scope
2 References
3 Terms and definitions
4 Abbreviations
5 Conventions
6 General description of GSTN
transport network equipment for interconnecting GSTN and IP networks
(TIGIN)
7 Interfaces
7.1 IP bearer interfaces
7.2 GSTN (TDM) bearer interfaces
7.3 TIGIN control interfaces
7.4 TDM signalling interface
7.5 Management interface
8 TIGIN functionality
8.1 Signal processing functions
8.2 Speech quality
8.3 Switching
8.4 Clock recovery and synchronization
8.5 Security
8.6 Additional features
8.7 Management functions and
management system interfaces
Appendix I –
Overview of the location of TIGIN gateways in end-to-end connections
Appendix II –
Further information on performance/interworking and synchronization
II.1 Performance/interworking
II.2 RTP timestamps
Appendix III –
TIGIN equipment arrangements
Appendix IV –
Mapping of E-model (G.107) parameters from IETF RFC 3611 metrics and
determining R-factor
IV.1 The E-model
IV.2 Parameters related to delay
IV.3 Parameters
related to packet loss
IV.4 Parameters related to noise
IV.5 Parameters related to signal level and
loudness
IV.6 Parameters related to Echo
IV.7 Calculating R, MOS-LQ and MOS-CQ
values
BIBLIOGRAPHY