Integrated Services Digital Network (ISDN) - Call Hold (HOLD) 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 1.9.2000
Designation standards: ÖNORM EN 300141-4-V1.3.3
Publication date standards: 1.9.2000
The number of pages: 33
Approximate weight : 99 g (0.22 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM