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    ETSI TS 129 235Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Interworking between SIP-I based circuit-switched core network and other networks (3GPP TS 29.235 version 8.9.0 Release 8)standard by European Telecommunications Standards...

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    ETSI TS 122 024Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Description of Charge Advice Information (CAI) (3GPP TS 22.024 version 14.0.0 Release 14)standard by European Telecommunications Standards Institute, 03/01/2017

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    ETSI TS 122 022Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Personalisation of Mobile Equipment (ME); Mobile functionality specification (3GPP TS 22.022 version 14.0.0 Release 14)standard by European Telecommunications Standards...

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    ETSI TS 122 016Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); International Mobile station Equipment Identities (IMEI) (3GPP TS 22.016 version 14.0.0 Release 14)standard by European Telecommunications Standards Institute, 03/01/2017

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    ETSI TS 122 011Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Service accessibility (3GPP TS 22.011 version 14.5.0 Release 14)standard by European Telecommunications Standards Institute, 03/01/2017

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    ETSI TS 122 004Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); General on supplementary services (3GPP TS 22.004 version 14.0.0 Release 14)standard by European Telecommunications Standards Institute, 03/01/2017

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    ETSI TS 122 003Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Circuit Teleservices supported by a Public Land Mobile Network (PLMN) (3GPP TS 22.003 version 14.0.0 Release 14)standard by European Telecommunications Standards Institute,...

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    ETSI TS 122 002Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Circuit Bearer Services (BS) supported by a Public Land Mobile Network (PLMN) (3GPP TS 22.002 version 14.0.0 Release 14)standard by European Telecommunications Standards...

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    ETSI TS 122 001Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Principles of circuit telecommunication services supported by a Public Land Mobile Network (PLMN) (3GPP TS 22.001 version 14.0.0 Release 14)standard by European...

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    ETSI TS 121 202Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Technical Specifications and Technical Reports relating to the Common IP Multimedia Subsystem (IMS) (3GPP TS 21.202 version 14.0.0 Release 14)standard by European...

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    ETSI TS 121 201LTE; Technical Specifications and Technical Reports for an Evolved Packet System (EPS) based 3GPP system (3GPP TS 21.201 version 14.0.0 Release 14)standard by European Telecommunications Standards Institute, 03/01/2017

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    ETSI TS 121 101Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 14.0.0 Release 14)standard by European Telecommunications Standards Institute, 03/01/2017

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