Integrated Services Digital Network (ISDN) - Direct Dialling In (DDI) 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 (incl. Diskette!!!)
STANDARD published on 1.10.1998
Designation standards: ÖNORM EN 300064-4-V1.3.4
Publication date standards: 1.10.1998
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM