ETSI EN 300 368-1998 Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) Supplementary Service; Functional Capabilities and Information Flow (V1.2.2)
European Telecommunications Standards Institute (ETSI)
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ETSI EN 300 368-1998
ETSI EN 300 368-1998 history
1998ETSI EN 300 368-1998 Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) Supplementary Service; Functional Capabilities and Information Flow (V1.2.2)