For all the advancements smartphones have made with high-speed data, audio fidelity, and advanced noise-cancellation, voice calls have been seriously stuck in the past. While our phones blast cellular data out at multiple megabits per second, voice has been constrained by its reliance on older standards – your $700 smartphone handles voice traffic in much the same way as a free-on-contract dumbphone. Progress has been slow to revamp voice, but the promise of voice over LTE – or VoLTE for short – has been looking like one of the most ...
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