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    ETSI TS 123 083Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 2 (3GPP TS 23.083 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute,...

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    ETSI TS 123 082Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Call Forwarding (CF) supplementary services; Stage 2 (3GPP TS 23.082 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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    ETSI TS 123 084Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Multi Party (MPTY) supplementary service; Stage 2 (3GPP TS 23.084 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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    ETSI TS 123 081Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Line Identification supplementary services; Stage 2 (3GPP TS 23.081 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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    ETSI TS 123 079Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Support of Optimal Routeing (SOR); Technical realization (3GPP TS 23.079 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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    ETSI TS 123 078Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4; Stage 2 (3GPP TS 23.078 version 16.0.0 Release 16)standard by European Telecommunications Standards...

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    ETSI TS 123 067Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); enhanced Multi-Level Precedence and Pre-emption Service (eMLPP); Stage 2 (3GPP TS 23.067 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute,...

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    ETSI TS 123 072Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Call Deflection (CD) supplementary service; Stage 2 (3GPP TS 23.072 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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    ETSI TS 123 066Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Support of Mobile Number Portability (MNP); Technical realization; Stage 2 (3GPP TS 23.066 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute,...

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    ETSI TS 123 018Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Basic call handling; Technical realization (3GPP TS 23.018 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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    ETSI TS 123 016Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Subscriber data management; Stage 2 (3GPP TS 23.016 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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    ETSI TS 123 012Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Location management procedures (3GPP TS 23.012 version 16.0.0 Release 16)standard by European Telecommunications Standards Institute, 07/01/2020

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