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A comment on Google Fiber Phone. Parent comment

Re:Google Fiber Phone by umeshunni on Tuesday March 29, 2016 @05:55PM (#11385238)
> AT&T calls this "HD Audio"

I believe the generic term is VoLTE - https://en.wikipedia.org/wiki/Voice_over_LTE

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Re:Google Fiber Phone by pilsetnieks on Tuesday March 29, 2016 @06:46PM (#11385592)
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

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Re:Google Fiber Phone by kristofferR on Tuesday March 29, 2016 @07:19PM (#11385763)
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...

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Re:Google Fiber Phone by davidf18 on Tuesday March 29, 2016 @06:52PM (#11385626)
VoLTE is great -- I use it on Verizon. But at least with Verizon it is turned off by default and most people don't seem to turn it on. It is turned off by default because LTE coverage is not as complete as the legacy 3G coverage (yet).

Facebook audio as others have pointed out is great.

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Re:Google Fiber Phone by r00fus on Wednesday March 30, 2016 @12:03AM (#11386890)
T-Mobile had it from 2013 and earlier (they got the iPhone5 in 2013 and it supported HD Voice). Call quality can be like a clear Skype.
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