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ETSI TS 123218-V15.0.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 15.0.0 Release 15)
Standard published on 28.6.2018
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ETSI TS 123218-V16.0.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 16.0.0 Release 16)
Standard published on 24.7.2020
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ETSI TS 123218-V17.0.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 17.0.0 Release 17)
Standard published on 21.4.2022
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ETSI TS 123218-V18.0.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 18.0.0 Release 18)
Standard published on 7.5.2024
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ETSI TS 123218-V19.0.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 19.0.0 Release 19)
Standard published on 16.10.2025
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ETSI TS 123218-V5.0.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 5.0.0 Release 5)
Standard published on 31.3.2002
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ETSI TS 123218-V5.1.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 5.1.0 Release 5)
Standard published on 30.6.2002
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ETSI TS 123218-V5.2.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 5.2.0 Release 5)
Standard published on 20.9.2002
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ETSI TS 123218-V5.3.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 5.3.0 Release 5)
Standard published on 31.12.2002
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ETSI TS 123218-V5.4.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 5.4.0 Release 5)
Standard published on 31.3.2003
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