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 30.6.1998
Designation standards: ETSI EN 300188-4-V1.2.4
Publication date standards: 30.6.1998
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: European technical standard
Category: Technical standards ETSI