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ETSI TS 122091-V3.1.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Explicit Call Transfer (ECT) (3GPP TS 22.091 version 3.1.0 Release 1999)
Standard published on 31.10.2000
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ETSI TS 122091-V4.0.0
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Explicit Call Transfer (ECT) (3GPP TS 22.091 version 4.0.0 Release 4)
Standard published on 31.3.2001
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ETSI TS 122091-V5.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Explicit Call Transfer (ECT) supplementary service; Stage 1 (3GPP TS 22.091 version 5.0.0 Release 5)
Standard published on 30.6.2002
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ETSI TS 122091-V6.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Explicit Call Transfer (ECT) supplementary service; Stage 1 (3GPP TS 22.091 version 6.0.0 Release 6)
Standard published on 7.1.2005
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ETSI TS 122091-V7.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Explicit Call Transfer (ECT) supplementary service; Stage 1 (3GPP TS 22.091 version 7.0.0 Release 7)
Standard published on 30.6.2007
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ETSI TS 122091-V8.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Explicit Call Transfer (ECT) supplementary service; Stage 1 (3GPP TS 22.091 version 8.0.0 Release 8)
Standard published on 16.1.2009
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ETSI TS 122091-V9.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Explicit Call Transfer (ECT) supplementary service; Stage 1 (3GPP TS 22.091 version 9.0.0 Release 9)
Standard published on 21.1.2010
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ETSI TS 122093-V10.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Completion of Calls to Busy Subscriber (CCBS); Service description, Stage 1 (3GPP TS 22.093 version 10.0.0 Release 10)
Standard published on 13.5.2011
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ETSI TS 122093-V11.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Completion of Calls to Busy Subscriber (CCBS); Service description, Stage 1 (3GPP TS 22.093 version 11.0.0 Release 11)
Standard published on 23.10.2012
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ETSI TS 122093-V12.0.0
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Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Completion of Calls to Busy Subscriber (CCBS); Service description, Stage 1 (3GPP TS 22.093 version 12.0.0 Release 12)
Standard published on 23.10.2014
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