A limitation of the first phone lines in the late 1800s was that there had to be a line... ...te 1800s was that there had to be a line for each phone , which was connected to an exchange. Each call wa... ...lly connected by an operator. Thus, the necessary lines were held by t...
https://www.neatorama.com/2014/09/02/Phone-Lines-of-Stockholm-in-the-Late-Nineteenth-Century/
Phone Lines of Stockholm in the Late Nineteenth Century
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