Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators. Specification for apparatus with call barring facilities.
NORMA vydána dne 30.11.1988
Designation standards: BS 6789-7:1988
Note: NEPLATNÁ
Publication date standards: 30.11.1988
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: British technical standard
Kategorie: Technické normy BS