On This Day in Telephone History September 26TH 1880 Columbus Asylum’s Telephone System Connected To City’s Exchange. The Columbus Asylum for the Insane’s 42 telephone intercommunicating system (in service July 20TH, 1879) was connected to the Columbus Telephone Exchange in Columbus, Ohio.

On This Day in Telephone History September 26TH 1880

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On This Day in Telephone History September 26TH 1880 Columbus Asylum’s Telephone System Connected To City’s Exchange. The Columbus Asylum for the Insane’s 42 telephone intercommunicating system (in service July 20TH, 1879) was connected to the Columbus Telephone Exchange in Columbus, Ohio.