Integrated Services Digital Network (ISDN). Closed User Group (CUG) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
NORM herausgegeben am 1.7.1999
Designation standards: ČSN EN 300138-3-V1.3.4
Classification mark: 877030
Catalog number: 55921
Publication date standards: 1.7.1999
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN