On This Day in Telephone History March 22ND 1970 – The highest capacity undersea cable to date was placed in service. The fifth transatlantic cable (3,500 miles) was part of a $100 million communications system. The new cable could handle more than 800 simultaneous telephone conversations, or a combination of telephone, teletypewriter, data and facsimile. Included in the system were: Green Hill, R.I., San Fernando, Spain; radio relay systems between San Fernando and Sesimbra, Portugal, and between San Fernando and Estepona, Spain, and a Mediterranean cable between Estepona and Rome, Italy. The project was a joint undertaking by AT&T; ITT World Communications, Inc.; Western Union International, Inc.; RCA Global Communications, Inc.; Compania Telefonica Nacional de Espana; Companhia Portuguesa Radio Marconi and Intalcable.

On This Day in Telephone History March 22ND 1970

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On This Day in Telephone History March 22ND 1970 – The highest capacity undersea cable to date was placed in service.

The fifth transatlantic cable (3,500 miles) was part of a $100 million communications system. The new cable could handle more than 800 simultaneous telephone conversations, or a combination of telephone, teletypewriter, data and facsimile. Included in the system were: Green Hill, R.I., San Fernando, Spain; radio relay systems between San Fernando and Sesimbra, Portugal, and between San Fernando and Estepona, Spain, and a Mediterranean cable between Estepona and Rome, Italy. The project was a joint undertaking by AT&T; ITT World Communications, Inc.; Western Union International, Inc.; RCA Global Communications, Inc.; Compania Telefonica Nacional de Espana; Companhia Portuguesa Radio Marconi and Intalcable.