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ETSI ETR 120-ed.1
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Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Open channel
Standard published on 21.11.1994
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ETSI ETR 121-ed.1
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Universal Personal Telecommunication (UPT); Architecture and functionalities for interworking
Standard published on 3.2.1994
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ETSI TS 121101-V10.0.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 10.0.0 Release 10)
Standard published on 11.4.2011
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ETSI TS 121101-V10.1.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 10.1.0 Release 10)
Standard published on 5.7.2011
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ETSI TS 121101-V10.2.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 10.2.0 Release 10)
Standard published on 20.3.2012
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ETSI TS 121101-V10.3.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 10.3.0 Release 10)
Standard published on 23.4.2013
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ETSI TS 121101-V10.4.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 10.4.0 Release 10)
Standard published on 18.7.2014
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ETSI TS 121101-V10.5.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 10.5.0 Release 10)
Standard published on 25.3.2025
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ETSI TS 121101-V11.0.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 11.0.0 Release 11)
Standard published on 23.4.2013
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ETSI TS 121101-V11.1.0
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Universal Mobile Telecommunications System (UMTS); Technical Specifications and Technical Reports for a UTRAN-based 3GPP system (3GPP TS 21.101 version 11.1.0 Release 11)
Standard published on 18.7.2014
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