Integrated Services Digital Network (ISDN) - Freephone (FPH) 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 1.3.1999
Designation standards: ÖNORM EN 300210-4-V1.2.4
Publication date standards: 1.3.1999
The number of pages: 31
Approximate weight : 93 g (0.21 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM