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EVS-EN 300 356-2 V4.2.1:2004

Integrated Services Digital Network (ISDN); Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 2: ISDN supplementary service [ITU-T Recommendation Q.730 (1999) modified]

General information
Valid from 13.05.2004
Base Documents
EN 300 356-2 V4.2.1
Directives or regulations
None
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Standard history
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