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6.2   Solutions for Key Issue 2 making the UE aware of 3GPP PS Data Off Exempt Services   Word-p. 27
6.2.1   Solution 2.1: Making the UE aware of 3GPP PS Data Off Exempt Services using filters for non-SIP services and enumeration/ICSI for SIP services
6.2.2   Solution 2.2 for Key Issue 2 - making the UE aware of 3GPP PS Data Off Exempt Services
6.2.3   Solution 2.3: Making the UE aware of 3GPP PS Data Off Exempt Services using a list of Data Off Exempted Services (DOES)
6.2.4   Solution 2.4 for Key Issue 2 - making the UE aware of 3GPP PS Data Off Exempt Services      Up
6.2.5   Solution 2.5: Making the UE aware of 3GPP PS Data exempt services with HSS holding provisioning information
6.2.6   Solution 2.6: Making the UE aware of 3GPP PS Data Off Exempt Services using a list of Data Off Exempted Services (DOES) via USSD / USSI
6.3   Solutions for Key Issue 3   Word-p. 35
6.3.1   Solution 3.1: Support for controlling non-SIP based services which are not 3GPP PS Data Off Exempt Services in roaming (LBO and roaming with no IMS roaming interfaces) and non-roaming cases
6.3.2   Solution 3.2: Non-SIP based Service Controlling in 3GPP core network
6.3.3   Solution 3.3: Enforcement of 3GPP PS Data Off policy in the Core Network using PCC for non-SIP service
6.3.4   Solution 3.4: Support for controlling non-SIP based PS Data Off Exempt Services in UE and EPC based on HSS as single database
6.3.5   Solution 3.5: Charging system based solution for non-SIP based service
6.3.6   Solution 3.6: Solution using HSS knowledge of PS Data Off UE status avoiding VPLMN impacts in early deployments
6.3.7   Solution 3.7: Solution using PCO for carrying PS Data Off UE status avoiding VPLMN impacts for early deployments
6.4   Solutions for Key Issue 4
6.4.1   Solution 4.1: Support for per service control of SIP messages for SIP based services which are not 3GPP PS Data Off Exempt Services in roaming (LBO and roaming with no IMS roaming interfaces) and non-roaming cases
6.4.2   Solution 4.2 for Key Issue 4 - Support for per service control of SIP messages for SIP based services which are not 3GPP PS Data Off Exempt Services in roaming (LBO and roaming with no IMS roaming interfaces) and non-roaming cases using Application Server   Word-p. 53
6.4.3   Solution 4.3: Control of SIP based PS Data Off Exempted services using the HSS
6.4.4   Solution 4.4: HSS based solution to inform IMS the 3GPP Data Off status   Word-p. 55      Up
6.4.5   Solution 4.5: Network part Solution for Key Issue 4 - T-ADS based solution in MT
6.4.6   Solution 4.6: Key Issue 4 - Network Enforcement of 3GPP PS Data Off IMS Voice and Video Sessions      Up
7   Overall evaluation
8   Conclusions   Word-p. 60
A   Change history   Word-p. 62

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