Business TeleCommunications (BTC); Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S); Attachment requirements for terminal equipment interface
NORMA vydaná dňa 31.1.1997
Designation standards: ETSI TBR 017-ed.1
Publication date standards: 31.1.1997
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: European technical standard
Kategória: Technické normy ETSI