ETSI EN 300 356-20

ETSI EN 300 356-20
ETSI EN 300 356-20 English PDF Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 20: Completion of Calls on No Reply (CCNR) supplementary service [ITU-T Recommendation Q.733, clause 5 (1999) modified]

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

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Production of the stage 3n standard for the supplementary service Completion of Call to subscriber Not Responding (CCNR)

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