BS 6450-3.1:1993

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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for direct dialling in on private branch exchanges with terminating stations treated as an entirety | Status: Withdrawn

Details

Publisher BS

File size 581.23 KB

Pages 30

Format PDF

Publication date 1993-01-15

ISBN-13 978-0-580-21148-5

ISBN-13 plain 9780580211485

ISBN-10 0580211487

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Points 696

File size 581.23 KB

Pages 30

Format PDF

Publication date 1993-01-15

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