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The problem is that some interconnects between carriers use codecs optimised for voice and voice only, and your modem will most likely not work at all. The days
by Rjevski 8y ago
The problem is that some interconnects between carriers use codecs optimised for voice and voice only, and your modem will most likely not work at all. The days of fully analog landlines are long gone - even if you get a phone jack, nothing guarantees it's not being digitised and then compressed with the aforementioned codecs down the line.