ETSI EN 300 356-18

ETSI EN 300 356-18
ETSI EN 300 356-18 English PDF Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997) modified]

standard published 07/01/2001 by European Telecommunications Standards Institute

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To create ETSI endorsement documents to ITU ISUP 2000.

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