ETSI ETS 300 368-1995 Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) Supplementary Service Functional Capabilities and Information Flows
European Telecommunications Standards Institute (ETSI)
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ETSI ETS 300 368-1995
ETSI ETS 300 368-1995 history
1995ETSI ETS 300 368-1995 Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) Supplementary Service Functional Capabilities and Information Flows