Jio sim supports only 4g mobiles.This is good perfomance in internet.But in phone calls it’s perfomance is too bad.So many times irritates. Coustemer service is little good in this network.Some times they responce not good. The best thing is in this network is call charges and Gprs charges very low cost to compare other networks.This network is Volte network. There is no network like this.This network perfomamce is good in only morning times, evening times they give very poor perfomance. Nearly 11crs coustmers of Jio network.