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    ETSI TS 129 228Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents (3GPP TS 29.228 version 13.2.1 Release 13)standard by European Telecommunications...

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    ETSI TR 124 980LTE; Minimum Requirements for support of MCPTT Service over the Gm reference point (3GPP TR 24.980 version 13.1.0 Release 13)standard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 628Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Common Basic Communication procedures using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.628 version 12.4.0 Release 12)standard by...

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    ETSI TS 124 628Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Common Basic Communication procedures using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.628 version 13.2.0 Release 13)standard by...

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    ETSI TS 124 525Universal Mobile Telecommunications System (UMTS); LTE; Business trunking; Architecture and functional description (3GPP TS 24.525 version 13.1.0 Release 13)standard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 525Universal Mobile Telecommunications System (UMTS); LTE; Business trunking; Architecture and functional description (3GPP TS 24.525 version 12.2.0 Release 12)standard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 390Universal Mobile Telecommunications System (UMTS); LTE; Unstructured Supplementary Service Data (USSD) using IP Multimedia (IM) Core Network (CN) subsystem IMS; Stage 3 (3GPP TS 24.390 version 13.1.0 Release 13)standard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 390Universal Mobile Telecommunications System (UMTS); LTE; Unstructured Supplementary Service Data (USSD) using IP Multimedia (IM) Core Network (CN) subsystem IMS; Stage 3 (3GPP TS 24.390 version 12.5.0 Release 12)standard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 384Universal Mobile Telecommunications System (UMTS); LTE; Mission Critical Push To Talk (MCPTT) configuration management; Protocol specification (3GPP TS 24.384 version 13.1.0 Release 13)standard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 383LTE; Mission Critical Push To Talk (MCPTT) Management Object (MO) (3GPP TS 24.383 version 13.1.0 Release 13)standard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 382LTE; Mission Critical Push To Talk (MCPTT) identity management; Protocol specification (3GPP TSstandard by European Telecommunications Standards Institute, 07/01/2016

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    ETSI TS 124 381LTE; Mission Critical Push To Talk (MCPTT) group management; Protocol specification (3GPP TS 24.381 version 13.1.0 Release 13)standard by European Telecommunications Standards Institute, 07/01/2016

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