ATT Archives: The Step By Step Switch
See more from the AT T Archives at The purpose of this film was to show employees, back in 1951, how calls were automatically switched through an SxS office. This film gives a general appreciation of the importance, complexity, and cost of switching equipment in an average 1950s telephone office. The path of a call is illustrated as it runs through a demonstration unit. Careful adherance to Bell System maintenance practices is stressed. While this is only part I,
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