In 1878, the first commercial telephone switchboard went into operation in New Haven, Connecticut.

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Government pages should also be in your telephone book and switchboard operator will connect you directly with your desired political potentate in Congress.

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When computerized dialing systems were introduced, they replaced the need for manual telephone switchboards and, consequently, the switchboard operators that ran them.

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From switchboard.com I had learned Ralph's street address, telephone number and e-mail address.

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