On This Day in Telephone History, February 13TH 1938, Western Electric’s first crossbar central office installation went into service at Troy Avenue, Brooklyn, NY. Western Electric’s first crossbar switch was the #1 Crossbar a.k.a. #1XB. The crossbar’s successful trial operation began in October, 1937.

On This Day in Telephone History February 13TH 1938

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On This Day in Telephone History, February 13TH 1938, Western Electric’s First Crossbar central office installation went into service at Troy Avenue, Brooklyn, NY. Western Electric’s first crossbar switch was the #1 Crossbar a.k.a. #1XB. The crossbar’s successful trial operation began in October, 1937.