1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Supplement
4 Abbreviations and acronyms
5 Conventions
6 Scenarios in terms of interconnection supporting ETS
6.1 Emergency centres connected to CS-PES
6.2 Emergency centres connected to PSTN/PLMN interconnecting with
IMS
6.3 Emergency centres connected to PSTN/PLMN interconnecting with
IMS via CS-PESs
7 Interconnection framework supporting ETS
8 Signalling requirements for interconnection of VoLTE-based network and
other networks
9 Security considerations
Bibliography