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Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 3 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 on 1.4.2002
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Designation standards: STN EN 300356-18-V3.1.3
Classification mark: 870356
Catalog number: 19979
Publication date standards: 1.4.2002
SKU: NS-519123
Approximate weight : 300 g (0.66 lbs)
Country: Slovak technical standard
Category: Technical standards STN
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Latest update: 2025-03-13 (Number of items: 2 232 199)
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