Section: 4.7.1.10 Handling of 3GPP PS data off
Content: An MS, which supports 3GPP PS data off (see 3GPP TS 23.060[ General Packet Radio Service (GPRS); Service description; Stage 2 ]  [74]), can be configured with up to two lists of 3GPP PS data off exempt services as specified in 3GPP TS 24.368[ Non-Access Stratum (NAS) configuration Management Object (MO) ]  [135] or in the EF3GPPPSDATAOFF USIM file as specified in 3GPP TS 31.102[ Characteristics of the Universal Subscriber Identity Module (USIM) application ]  [112]: - a list of 3GPP PS data off exempt services to be used in the HPLMN or EHPLMN (if the EHPLMN list is present); and - a list of 3GPP PS data off exempt services to be used in the VPLMN. If only the list of 3GPP PS data off exempt services to be used in the HPLMN or EHPLMN (if the EHPLMN list is present) is configured at the MS, this list shall be also used in the VPLMN. If the MS supports 3GPP PS data off, the MS shall provide the 3GPP PS data off UE status in the protocol configuration options IE during PDP context activation procedure (see subclause 6.1.3.1). The network informs the MS about the support of 3GPP PS data off during PDP context activation procedure as specified in subclause 6.1.3.1. If 3GPP data off support is not indicated in the protocol configuration options IE in the ACTIVATE PDP CONTEXT ACCEPT message, the MS shall not indicate any change of 3GPP PS data off UE status for the PDN connection established by the PDP context activation procedure; otherwise the MS shall indicate change of the 3GPP PS data off UE status for the PDN connection by using the PDP context modification procedure as specified in subclause 6.1.3.3. If the network does not provide indication of support of 3GPP PS data off during PDP context activation procedure, the MS behaviour for non-exempt service requests from the network is implementation dependent. When the 3GPP PS data off UE status is "activated": a) the MS does not send uplink IP packets except: - for those services indicated in the list of 3GPP PS data off exempt services to be used in the HPLMN or EHPLMN (if the EHPLMN list is present) as specified in 3GPP TS 24.368[ Non-Access Stratum (NAS) configuration Management Object (MO) ]  [135] when the MS is in its HPLMN or EHPLMN (if the EHPLMN list is present); - for those services indicated in the list of 3GPP PS data off exempt services to be used in the HPLMN or EHPLMN (if the EHPLMN list is present) when the MS is in the VPLMN, if only the list of 3GPP PS data off exempt services to be used in the HPLMN or EHPLMN (if the EHPLMN list is present) is configured to the MS as specified in 3GPP TS 24.368[ Non-Access Stratum (NAS) configuration Management Object (MO) ]  [135]; - for those services indicated in the list of 3GPP PS data off exempt services to be used in the VPLMN when the MS is in the VPLMN, if the list of 3GPP PS data off exempt services to be used in the VPLMN is configured to the MS as specified in 3GPP TS 24.368[ Non-Access Stratum (NAS) configuration Management Object (MO) ]  [135]; - for those services indicated in the EF3GPPPSDATAOFF USIM file as specified in 3GPP TS 31.102[ Characteristics of the Universal Subscriber Identity Module (USIM) application ]  [112]; and - any uplink traffic due to procedures specified in 3GPP TS 24.229[ IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 ]  [13D]; and b) the MS does not send uplink non-IP user data packets. Otherwise the MS sends uplink user data packets without restriction. NOTE: If the MS supports 3GPP PS data off, uplink IP packets are filtered as specified in 3GPP TS 24.229[ IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 ]  [13D] in subclause B.3.1.5.