Integrated Services Digital Network (ISDN). Three-Party (3PTY) 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 1.5.2001
Designation standards: STN EN 300188-4-V1.3.3
Classification mark: 870188
Catalog number: 17309
Publication date standards: 1.5.2001
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: Slovak technical standard
Category: Technical standards STN