On This Day in Telephone History October 18TH 1892 - New York-Chicago long distance line opened using 950 miles of copper wire. This was an overhead wire line of heavy gauge copper (two No.8 gauge conductors). Alexander Graham Bell took part in the opening ceremony in New York at the main AT&T office at 18 Cortlandt St.

On This Day in Telephone History October 18TH 1892

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On This Day in Telephone History October 18TH 1892 – New York–Chicago long distance line opened using 950 miles of copper wire. This was an overhead wire line of heavy gauge copper (two No.8 gauge conductors). Alexander Graham Bell took part in the opening ceremony in New York at the main AT&T office at 18 Cortlandt St.