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ETSI ETS 300 369-1

Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification
standard by European Telecommunications Standards Institute, 05/01/1995
Publisher: ETSI

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Layer 3 ISDN D-channel signalling procedures for control of the Explicit Call Transfer

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