Switchboard operator - Alchetron, The Free Social Encyclopedia
alchetron.com
Switchboard operator - Alchetron, The Free Social Encyclopedia
In the early days of telephony, through roughly the 1960s, companies used manual telephone switchboards, and switchboard operators connected calls by inserting a pair of phone plugs into the appropriate jacks. Each pair of plugs was part of a cord circuit with a switch associated that let the operat
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