Integrated Services Digital Network (ISDN). Telephony 7 kHz teleservice. Functional capabilities and information flows
STANDARD published on 1.10.1994
Designation standards: STN ETS 300265
Classification mark: 870265
Catalog number: 71403
Publication date standards: 1.10.1994
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: Slovak technical standard
Category: Technical standards STN