ITU-T Q.3063 (09/2022)

Table of Contents
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 Architecture of calling line identification authentication
6.1 Reference architecture
6.2 Functional entities
7 Procedure of calling line identification authentication
7.1 Certification generating
7.2 Call request initiating
7.3 Certification verification
8 Procedure of calling line identification presentation
8.1 Actions at the outgoing SSGW/international gateway exchange
8.2 Actions at the transit exchange
8.3 Actions at the incoming SSGW/ international gateway exchange
8.4 Action at the destination local exchange (optional)

Signalling system No. 7 (SS7) was originally designed for operator management on the assumption that anyone connected to the SS7 network was trustable.

This Recommendation presents the architecture and signalling procedures of calling line identification authentication in support of existing networks.