In this episode of the I Can't Sleep Podcast, fall asleep learning about long-distance calling. Phones used to be really boring, then they got smart. This doesn't mention anything about smart phones. It's all about the olden days of switchboards and operators. Good luck staying awake tonight! Happy sleeping!

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This content is derived from the Wikipedia article Long-Distance Calling, available under the Creative Commons Attribution-ShareAlike (CC BY-SA) license. The article can be accessed at https://en.m.wikipedia.org/wiki/Long-distance_calling.

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