If you're on Verizon LTE usually if you talk to someone else on Verizon I think it uses VoLTE [1] which sounds as good to me as FaceTime audio -- excellent. Lik

If you're on Verizon LTE usually if you talk to someone else on Verizon I think it uses VoLTE [1] which sounds as good to me as FaceTime audio -- excellent. Like completely uncompressed CD-quality audio. [1] https://en.wikipedia.org/wiki/Voice_over_LTE https://en.wikipedia.org/wiki/Voice_over_LTE Edit: mdasen says more about VoLTE below: https://news.ycombinator.com/item?id=28249217 https://news.ycombinator.com/item?id=28249217