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!!!)
NORMA vydaná dňa 1.10.1998
Designation standards: ÖNORM EN 300141-4-V1.2.4
Note: NEPLATNÁ
Publication date standards: 1.10.1998
The number of pages: 31
Approximate weight : 93 g (0.21 lbs)
Country: Austrian technische Norm
Kategória: Technické normy ÖNORM