Now everyone is talking advantage of Reliance jio those who don’t 4G phone they are buying Reliance jiofi for internet connection to enable 4G speed on 2 g phone but there are some disadvantages of jiofi we have to wait sometime for establishing the connection sometimes it needs to restart the router of jiofi , secondly when making calls sometimes it connects to the wrong person this thing happened mostly to me otherwise the router is good no other disadvantages for it , the voice quality , video calling nice and daily 1Gb data from jio.wow