BS 6450-5-5.1:1984 - Page 2

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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for facilities on private branch exchanges with terminating stations treated as an entirety | Status: Revised, Superseded, Withdrawn

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Publisher BS

File size 2.33 MB

Pages 40

Format PDF

Publication date 1984-11-30

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File size 2.33 MB

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Publication date 1984-11-30

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