Hi friends I am using jio sim since three weeks and there is a offer that a single person can purchase upto nine sims on your single identiy card and its advantages are we can use this sim for free calls, messages, and heavy usage of internet for downloading of a number of videos , apps and anything that matters you. And in iphone5 this jio sim does not support for calling with jio sim and in asuszenfone 2 laser5.5 this jio sim allows calls only if there is internet because I using this asus mobile and my friend is using iphone5.So in jio sim there are advantages and disadvantges involved in it. But I can say that this helps you to download heavy matters from internet and its in free and we dont know what changes will occur in future in jio sim.