B.1 Scope

29.2023GPPRelease 17Signalling System No. 7 (SS7) signalling transport in core networkStage 3TS

This annex defines the application of M2PA in 3GPP core networks as an option on interface B. The purpose of the Annex is to ensure the interoperability of different implementations of M2PA as used by different operators and vendors. This is achieved by:

– Clarifying certain concepts which are used in RFC 4165;

– Defining those features in RFC 4165 for which support is mandatory;

– Defining those features in the RFC 4165 for which support is optional;

– Defining those features in RFC 4165 which shall not be used;

This specification is intended for interfaces between network domains. However, it can also be used inside one network domain, and constitutes, in that case, a minimum set of M2PA requirements to be supported between IP nodes and between SRP nodes in a 3GPP network.