When this Bell Telephone ad appeared in 1932, that transcontinental call was “just” $9 ($200 today) for the first three minutes. https://www.saturdayeveningpost.com/2023/04/vintage-advertising-for-whom-the-bell-tolls/
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Before that, a “long distance” call was only around 300 miles, because they lacked the power to push the signals any further.