I know one thing that copper POTS lines are still good at is when they help 911 locate emergency calls. BTW, when I worked at a call center for a telecommunications company, I sold POTS service to a young man of the Old Amish tradition so they can have it for emergencies.
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Mom (1938 - 2013) - RIP, I miss you
Spunky, (1999 - 2016) - RIP, pretty girl!
Rascal, (2007 - 2021) RIP, miss you very much
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