Yes, Jio 4G is ruling the country now in communication sector and most of us are fed up with the alternate method for calling from Jio in a 4G device(using JioJoin/Jio4GVoice App). Now VoLTE supported devices are the most demanded. As per Jio's report - Reliance Jio network already covers 18,000 cities and towns, and over 2 lakh villages and it is 100% VoLTE network and remain free voice calls over India now and then. So VoLTE is a must feature.