Default Does anyone on sprint htc one m8 have texting & calling over wifi ?

Does anyone on sprint htc one m8 have texting & calling over wifi with the sprint service ?

Asking because I have very weak service at home with all cell providers including verizon and sprint is even worse and if texting over wifi and calling over wifi works with sprint then I will buy a sprint htc one m8 and get it flashed to boost mobile or some other sprint mvno.

Hopefully someone with a m8 on sprint that knows how to turn their radio off and can turn their radio off somewhere that they have wifi coverage and try sending a text over wifi and see if the text will actually send over wifi.