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ETSI TS 123228-V18.10.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.10.0 Release 18)
Standard published on 21.7.2025
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ETSI TS 123228-V18.11.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.11.0 Release 18)
Standard published on 20.1.2026
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ETSI TS 123228-V18.12.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.12.0 Release 18)
Standard published on 20.7.2026
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ETSI TS 123228-V18.5.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.5.0 Release 18)
Standard published on 22.5.2024
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ETSI TS 123228-V18.6.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.6.0 Release 18)
Standard published on 24.7.2024
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ETSI TS 123228-V18.7.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.7.0 Release 18)
Standard published on 3.10.2024
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ETSI TS 123228-V18.8.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.8.0 Release 18)
Standard published on 9.1.2025
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ETSI TS 123228-V18.9.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 18.9.0 Release 18)
Standard published on 3.4.2025
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ETSI TS 123228-V19.4.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 19.4.0 Release 19)
Standard published on 22.1.2026
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ETSI TS 123228-V19.5.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 19.5.0 Release 19)
Standard published on 22.1.2026
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