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Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 6: Connected Line Identification Restriction (COLR) supplementary service [ITU-T Recommendation Q.731, clause 6 (1993), modified]
STANDARD published on 31.8.1998
Designation standards: ETSI EN 300356-6-V3.1.3
Publication date standards: 31.8.1998
SKU: NS-308776
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: European technical standard
Category: Technical standards ETSI
Latest update: 2025-05-12 (Number of items: 2 199 201)
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