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2159 TTAT.3G-24.090V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Unstructured Supplementary Service Data (USSD); Stage 3(Release 19) 2026-02-02
2158 TTAT.3G-24.091V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Explicit Call Transfer (ECT) supplementary service; Stage 3(Release 19) 2026-02-02
2157 TTAT.3G-24.093V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Completion of Calls to Busy Subscriber (CCBS); Stage 3(Release 19) 2026-02-02
2156 TTAT.3G-24.096V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Name Identification supplementary services; Stage 3(Release 19) 2026-02-02
2155 TTAT.3G-24.103V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Telepresence using the IP Multimedia (IM) Core Network (CN) Subsystem (IMS); Stage 3(Release 19) 2026-02-02
2154 TTAT.3G-24.105V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Application specific Congestion control for Data Communication (ACDC) Management Object (MO)(Release 19) 2026-02-02
2153 TTAT.3G-24.109V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Bootstrapping interface (Ub) and network application function interface (Ua); Protocol details(Release 19) 2026-02-02
2152 TTAT.3G-24.116V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Stage 3 aspects of system architecture enhancements for TV services (Release 19) 2026-02-02
2151 TTAT.3G-24.117V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;TV service configuration Management Object (MO)(Release 19) 2026-02-02
2150 TTAT.3G-24.135V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Multicall supplementary service; Stage 3(Release 19) 2026-02-02