Sprint to Launch 5G In 2019 Using 2.5 GHz Spectrum
They could do 5G.. The VoLTE is just because they do not have an IMS core for voice calls, has nothing to do with data.
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Prediction: complete flop
This 2.5GHz spectrum is what's left over from the days of "4G" WiMAX. Back then the problem was it offered HORRIBLE indoor coverage due to the high frequency. They really need to ditch that and realize why no other carriers are going to be doing their own on that high of band.
5G on Sprint
The problem with this of course is the feeble building penetration of 2.5Ghz signals. Especially since the 5G signal will probably be less robust than 4G (same way that 3G was more fragile than 2G and 4G was more fragile than 3G).
