J I o network is very fast network for 4 g high speed network . j I o sim launch previous month and its going to free all calls messages internet 4 g for 4 month till 31 st December 2016 which can be never loss 1 p in call or internet also free. Which is provide high quality voice calls or video call best network in the world. This is awesome scheme I also used this network free free. That is awesome quality of voice u can cal all India its free of cost. Most of people can use this j I o network is the best network. reliance J I o is a 4 G network is called L T E network which provide a best internet utility to surfing and downloading is very fast.