Integrated Service Digital Network (ISDN) - Explicit Call Transfer (ECT) supplementary service - Digital Subscriber Signalling System No. one (DSS 1) protocol - Part 1: Protocol specification
STANDARD published on 1.10.1999
Designation standards: ČSN EN 300369-1-V1.2.4
Classification mark: 877077
Catalog number: 56822
Publication date standards: 1.10.1999
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Czech technical standard
Category: Technical standards ČSN