SS-ETS-300369-1 | Integrated Service Digital Network (ISDN) - Explicit Call Transfer (ECT) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification | Document Center, Inc.

SS-ETS-300369-1 › Complete Document History
Integrated Service Digital Network (ISDN) - Explicit Call Transfer (ECT) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification

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EDITION 1 - ENGLISH LANGUAGE EDITION - July 6, 1995