Integrated Services Digital Network (ISDN) - Telephony 7 kHz, videotelephony, audiographic conference and videoconference teleservices - 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!!!)
NORM herausgegeben am 1.10.2000
Designation standards: ÖNORM EN 300267-4-V1.2.4
Publication date standards: 1.10.2000
The number of pages: 35
Approximate weight : 105 g (0.23 lbs)
Country: Austrian technische Norm
Kategorie: Technische Normen ÖNORM