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by vel0city 871 days ago
POTS would have had the same voice quality as a decent VOIP provider, as upstream from your home they were converting it to ulaw anyways. This would have been better than the early GSM codecs. But these days with VoLTE "HD Voice" uses a superior codec. Most chat apps will use a codec that's better than ulaw as well. So there's a lot of places to go that offer significantly better voice quality these days.