MMTel privacy is a set of services that allow for a calling party identity to be presented and/or restricted.

  • The Originating Identity Restriction (OIR) service adjusts the privacy restrictions for the originating user to restrict its identity.

  • The Originating Identity Presentation (OIP) service enforces the privacy presentation restrictions of the originating user to the terminating user.

  • The Terminating Identity Restriction (TIR) service adjusts the privacy restrictions for the terminating user.

  • The Terminating Identity Presentation (TIP) service enforces the privacy presentation restrictions of the terminating user to the originating user.

These services are subscriber specific and are configured in the HSS inside the MMTel-Services XML document for the subscriber.

System wide defaults are configured for OIR and OIP services using declarative configuration for when the subscriber’s services are not defined/active in the MMTel-Services XML document. No configuration is required for TIR and TIP services.

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