Place:Morris, Grundy, Illinois, United States

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source: Family History Library Catalog

the text in this section is copied from an article in Wikipedia

Morris is a city in and the county seat of Grundy County, Illinois, United States and part of the southwest Chicago metropolitan area. The population was estimated at 15,053 in 2019.

History

the text in this section is copied from an article in Wikipedia

In early 1960, the world's first electronic switching system was installed at the Morris central office. The system was a milestone in telephone switching history, an experiment whose planning started in the early 1950s, and led to the largest sustained research and development program toward a single goal in the Bell System. After conversion of the existing manual telephone system using telephone operators for completing telephone calls, with an automatic electromechanical crossbar switching system starting in ca. 1958, a few hundred subscribers received dial service from June 1960 through January 1962 from the first mostly electronic system, that used cold-cathode electron tubes, instead of mechanical relays and switches. For telephone subscribers, the most notable characteristic of what is usually called the Morris System was the use of electronic tone ringers which used up to eight different tones produced by a tweeter, rather than the traditional bell ringer.

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