Business Telecommunications (BT); Transmission characteristics at 2-wire analogue interfaces of a digital Private Automatic Branch Exchange (PABX)
NORMA vydána dne 31.8.1991
Designation standards: ETSI I-ETS 300004-ed.1
Note: NEPLATNÁ
Publication date standards: 31.8.1991
The number of pages: 43
Approximate weight : 129 g (0.28 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI