Integrated Services Digital Network (ISDN) - Call Waiting (CW) supplementary service - Digital Subscriber Signalling System No.one (DSS1) protocol - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
STANDARD published on 1.7.1999
Designation standards: ČSN EN 300058-4-V1.2.4
Classification mark: 877009
Catalog number: 55898
Publication date standards: 1.7.1999
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN