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TS 24.607 (CT1)
Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IMS – Protocol specification

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V15.0.0 (PDF)  2018/03  23 p.
V14.0.0  2016/09  24 p.
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V12.2.0  2014/12  22 p.
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Rapporteur:  Mr. Leis, Peter
Antecedent:  TS 24.407

OIP and OIR supplementary services are based on stage one and two of the ISDN CLIP and CLIR supplementary services.

The OIP service provides the terminating user with the possibility of receiving trusted (i.e. network-provided) identity information in order to identify the originating user. In addition to the trusted identity information, the identity information from the originating user can include identity information generated by the originating user and in general transparently transported by the network. In the particular case where the "no screening" special arrangement does not apply, the originating network shall verify the content of this user generated identity information. The terminating network cannot be responsible for the content of this user generated identity information.

The OIR service is a service offered to the originating user. It restricts presentation of the originating user's identity information to the terminating user. When the OIR service is applicable and activated, the originating network provides the destination network with the indication that the originating user's identity information is not allowed to be presented to the terminating user. In this case, no originating user's identity information shall be included in the requests sent to the terminating user. The presentation restriction function shall not influence the forwarding of the originating user's identity information within the network as part of the supplementary service procedures.