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by pilsetnieks 3741 days ago
Not really. VoLTE is Voice over LTE[1], which most likely implements HD voice (wideband audio[2],) however, with carrier and device support HD voice could be done over 3G and 2G networks as well.

[1] https://en.wikipedia.org/wiki/Voice_over_LTE

[2] https://en.wikipedia.org/wiki/Wideband_audio
1 comments
kristofferR 3741 days ago
VoLTE will actually soon feature Enhanced Voice Services (EVS), or Full-HD Voice, which is a vast improvement over "regular" HD Voice.

EVS is supposedly transparent and full-band. http://spectrum.ieee.org/telecom/standards/full-hd-voice-wil...

link