airpsan

Voice over LTE (VoLTE) allows both Data and voice calls at the same time.  It is also known as “HD Calling” . Lots of good info here. https://en.wikipedia.org/wiki/Voice_over_LTE The advantages -Simultaneous Voice and Data Calls -High definition (HD) voice calling Sprint currently supports VoLTE.  Airspan is supporting VoLTE. Phones which support VoLTE https://en.wikipedia.org/wiki/List_of_smartphones_with_HD_Voice_support