Why Old Phones Don’t Work on Modern Cellular Networks


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If you find an old cell phone in a drawer somewhere, there’s a good chance it can’t connect to modern cellular networks. It won’t find a signal. By 2022 or 2023, many more old cell phones, including the iPhone 4, will be cut off. But why?

[HEADING=1]Landline Phone Technology Dates Back to the ’60s[/HEADING]