Integrated Services Digital Network (ISDN). Service requirements for telefax group 4
STANDARD published on 1.2.1994
Designation standards: STN ETS 300120
Classification mark: 870120
Catalog number: 71259
Publication date standards: 1.2.1994
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: Slovak technical standard
Category: Technical standards STN