Integrated Services Digital Network (ISDN); conference call, add-on (CONF) supplementary service; service description.
NORMA vydaná dňa 1.9.1993
Designation standards: DIN ETS 300183:1993-09
Publication date standards: 1.9.1993
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: German technical standard
Kategória: Technické normy DIN
ISDN; Dienstmerkmal "Konferenz"; Dienstbeschreibung.