Specifies requirements for facilities on PBXs within the scope of BS 6450:Part 2:1983.
BS 6450-5-5.1:1984
Original price was: $309.88.$154.00Current price is: $154.00.
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators.Facilities on private branch exchanges-Specification for facilities on private branch exchanges with terminating stations treated as an entirety
BSI Group , 09/30/1988
Pages: 40

