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26632 TTAT.3G-24.007V19.4.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mobile radio interface signalling layer 3; General Aspects(Release 19) 2026-05-04
26631 TTAT.3G-24.008V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mobile radio interface Layer 3 specification; Core network protocols; Stage 3(Release 19) 2026-05-04
26630 TTAT.3G-24.186V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;IMS Data Channel applications; Protocol specification(Release 19) 2026-05-04
26629 TTAT.3G-24.193V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;5G System;Access Traffic Steering, Switching and Splitting (ATSSS); Stage 3(Release 19) 2026-05-04
26628 TTAT.3G-24.229V18.9.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3(Release 18) 2026-05-04
26627 TTAT.3G-24.229V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3(Release 19) 2026-05-04
26626 TTAT.3G-24.281V17.12.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Video (MCVideo) signalling control; Protocol specification(Release 17) 2026-05-04
26625 TTAT.3G-24.281V18.11.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Video (MCVideo) signalling control; Protocol specification(Release 18) 2026-05-04
26624 TTAT.3G-24.281V19.4.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Video (MCVideo) signalling control; Protocol specification(Release 19) 2026-05-04
26623 TTAT.3G-24.282V14.12.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Data (MCData) signalling control; Protocol specification(Release 14) 2026-05-04
26622 TTAT.3G-24.282V15.11.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Data (MCData) signalling control; Protocol specification(Release 15) 2026-05-04
26621 TTAT.3G-24.282V16.13.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Data (MCData) signalling control; Protocol specification(Release 16) 2026-05-04
26620 TTAT.3G-24.282V17.13.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Data (MCData) signalling control; Protocol specification(Release 17) 2026-05-04
26619 TTAT.3G-24.282V18.12.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Data (MCData) signalling control; Protocol specification(Release 18) 2026-05-04
26618 TTAT.3G-24.282V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Data (MCData) signalling control; Protocol specification(Release 19) 2026-05-04
26617 TTAT.3G-24.283V19.1.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Location Management (MCLoc); Protocol Specification(Release 19) 2026-05-04
26616 TTAT.3G-24.301V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3(Release 19) 2026-05-04
26615 TTAT.3G-24.368V19.4.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Non-Access Stratum (NAS) configuration Management Object (MO)(Release 19) 2026-05-04
26614 TTAT.3G-24.369V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Ambient IoT Non-Access-Stratum (AIoT NAS) protocol for 5G System (5GS); Stage 3(Release 19) 2026-05-04
26613 TTAT.3G-24.379V18.11.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Push To Talk (MCPTT) call control; Protocol specification(Release 18) 2026-05-04
26612 TTAT.3G-24.379V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Push To Talk (MCPTT) call control; Protocol specification(Release 19) 2026-05-04
26611 TTAT.3G-24.392V19.0.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Application enablement aspects for MMTel; Protocol specification(Release 19) 2026-05-04
26610 TTAT.3G-24.481V19.2.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Services (MCS) group management; Protocol specification(Release 19) 2026-05-04
26609 TTAT.3G-24.484V17.11.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Services (MCS) configuration management; Protocol specification(Release 17) 2026-05-04
26608 TTAT.3G-24.484V18.8.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Services (MCS) configuration management; Protocol specification(Release 18) 2026-05-04
26607 TTAT.3G-24.484V19.4.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Mission Critical Services (MCS) configuration management; Protocol specification(Release 19) 2026-05-04
26606 TTAT.3G-24.501V18.13.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3(Release 18) 2026-05-04
26605 TTAT.3G-24.501V19.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3(Release 19) 2026-05-04
26604 TTAT.3G-24.538V19.4.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Enabling MSGin5G Service; Protocol specification(Release 19) 2026-05-04
26603 TTAT.3G-24.543V18.5.0 3rd Generation Partnership Project;Technical Specification Group Core Network and Terminals;Data delivery management - Service Enabler Architecture Layer for Verticals (SEAL); Protocol Specification; (Release 18) 2026-05-04