C.2 Application usage of XCAP

24.6233GPPExtensible Markup Language (XML) Configuration Access Protocol (XCAP) over the Ut interface for Manipulating Supplementary ServicesRelease 17TS

C.2.1 Procedures at the UE

C.2.1.1 3GPP PS data off

C.2.1.1.1 General

The UE may support the 3GPP PS data off.

If the UE supports the 3GPP PS data off:

a) the UE can be configured with an indication whether the SS configuration via XCAP is a 3GPP PS data off exempt service; and

b) the UE may support being configured with the indication whether the SS configuration via XCAP is a 3GPP PS data off exempt service using one or more of the following methods:

1) the EF_{3GPPPSDATAOFF} described in 3GPP TS 31.102 [15B]; and

2) the SS_XCAP_config_exempt node of 3GPP TS 24.424 [22].

If the UE is configured with both the SS_XCAP_config_exempt node of 3GPP TS 24.424 [22] and the EF_{3GPPPSDATAOFF} described in 3GPP TS 31.102 [15B], then the EF_{3GPPPSDATAOFF} shall take precedence.

C.2.1.1.2 Enforcement

If the 3GPP PS data off status is "active" and the UE is not configured with an indication that SS configuration via XCAP is a 3GPP PS data off exempt service the UE shall not invoke the procedures in clause 5.2.1 and clause 5.3.1 from a UE’s contact address containing an IP address associated with an EPS IP-CAN bearer.

Annex D (normative):
IP-Connectivity Access Network specific concepts when using GPRS to access IM CN subsystem