Integrated Services Digital Network (ISDN). ISDN Packet Mode Bearer Services (PMBS). ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the D-channel of the user access - basic and primary rate
NORM herausgegeben am 1.2.1994
Designation standards: STN ETS 300049
Classification mark: 870049
Catalog number: 71243
Publication date standards: 1.2.1994
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN