This time all the people go crazy for jio because its provide unlimited data for free(for 3 month) and its also provide free calling but free calling is not reliable its not working some time cal may be establish other wise every time the root is remain busy so is is very difficulty and not reliable for calling. But jio provide free unlimited data I am also using jio when I got jio before that I dont recharge for internet so its a kind of money saving and I am also using jio sim for free calling mostly in early morning 7 to 9 the calls will connect in first attempt so I talk to my friends and relatives in morning so it will also save my balance. Most of people used dual sim and me also so I used other sim for urgent calling and for internet and unimportant call I used Jio sim its really money saving plan.