This Recommendation provides the user equipment related test suite structure and test purposes (TSS&TP) related originating identification presentation (OIP) supplementary service and the originating identification restriction (OIR) supplementary services defined in [ITU-T Q.3618 v.1] "Originating identification presentation and originating identification restriction using IP multimedia core network subsystem – Protocol specification".

The OIP service provides the terminating party with the possibility to receive a trusted (network-provided) identity of the originating party and is applicable to all session-based services of the NGN.

The OIR service enables the originating party to prevent presentation of any network-provided identity to the terminating party and is applicable to all session-based services of the NGN.