I bought one mobile from lyf and I got this jio sim his network coverage is ok its not as good so we can say that its an amazing network coverage and sometime it stops working as well none of tower comes then and speed of net js very poor then other service provider gives and his calling is good but most of the time it says all lines are busy please try again later sk thats by I dont like it too much but its ok because we dont have to pay bill if we have to then I will never buy