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Standards [CURRENT]

OENORM EN 300356-9 V 4.1.2
Integrated Services Digital Network (ISDN) - Signalling System No.7 (SS7) - ISDN User Part (ISUP) version 4 for the international interface - Part 9: Closed User Group (CUG) supplementary service [ITU-T Recommendation Q.735, clause 1 (1993), modified]

Edition 2001-11-01
Original language English
Price from 21.20 €
Table of contents