Combination of Ericsson and GEC/Plessey/BT "System X" (see https://en.wikipedia.... | Hacker News

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		psychotaurusaqu 8 months ago \| parent \| context \| favorite \| on: Telephone Exchanges in the UK Combination of Ericsson and GEC/Plessey/BT "System X" (see https://en.wikipedia.org/wiki/System_X_(telephony)). Erisson AXE10 was known as "System Y" in the UK and a hedge against buying exclusively System X equipment.

gjvc 8 months ago [–]

see also http://www.samhallas.co.uk/repository/po_docs/system_x.pdf and http://www.samhallas.co.uk/repository/journals/BTEJ/BTEJ%20V...

and this

https://www.academia.edu/39809466/System_X_The_history_of_th...

by http://www.kingdom-technology.co.uk/malcolmhamer.php

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