X.1 General

23.2283GPPIP Multimedia Subsystem (IMS)Release 18Stage 2TS

3GPP PS Data Off is an optional feature. When activated by the user and when the network supports the feature, this feature allows control of the IMS services and more broadly SIP based services using the IMS framework that the user is allowed to access, for both originating and terminating sessions.

The list of 3GPP PS Data Off Exempted Services is configured by the HPLMN in the UE and in the network for enforcement. The list of SIP based service can include any one or any combination of the following services:

– MMTel Voice;

– SMS over IMS;

– MMTel Video;

– USSI;

– Particular IMS Services not defined by 3GPP, where each such IMS service is identified by an IMS communication service identifier.