BS 6450-5.1:1993

Withdrawn

Private branch exchanges for connection to the British Telecommunications public switched telephone network. Facilities on private branch exchanges Specification for facilities on private branch exchanges with terminating stations treated as an entirety

Available format(s)

Hardcopy , PDF

Withdrawn date

01-05-2009

Language(s)

English

Published date

15-02-1993

Publisher

British Standards Institution

Specifies requirements for facilities on PBXs within the scope of BS 6450-2:1993. This standard has been presented for designation under the Telecommunications Act 1984.

Committee	W/-
DevelopmentNote	Inactive for the new design. Supersedes 91/94268 DC (09/2005)
DocumentType	Standard
Pages	32
PublisherName	British Standards Institution
Status	Withdrawn
Supersedes	BS 6450-5-5.1:1984 BS 6450-5.1(1984) : 1984

BS 6450-2:1993	Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators Specification for private branch exchanges with terminating stations treated as an entirety
BS 6450-3.1:1993	Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators. Direct dialling in on private branch exchanges Specification for direct dialling in on private branch exchanges with terminating stations treated as an entirety
BS 6450-4:1993	Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators Specification for ports

BS 6789-2:1984	Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators Specification for apparatus with loudspeaking facilities
BS 4669:1971	Specification for an artificial ear of the wide band type for the calibration of earphones used in audiometry