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Terminating call connections in a magnetic-drum-controlled electronic telephone exchange

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2 Author(s)

In an electronic telephone exchange shortly to be installed Highgate Wood and using a time-division-multiplex principle, magnetic drum is used to search for semi-permanent information stored on the drum relating to called subscribers' lines. A temporary store associated with each line is used to determine whether a connection possible, and if so, information relating to the line is passed to other sections of the exchange, so that a connection can be established between the calling and called lines.

Published in:

Proceedings of the IEE - Part B: Electronic and Communication Engineering  (Volume:107 ,  Issue: 20 )