I had used this jio card infact I have 4 devices at my home running on the jio 4G network first when it was launched I had over whelming speed and I totally agree but ase the jio support extend to many more devices the speed has decreased to such a bit that no whatsapp messagesare sent and if you call a mibile number through the jio 4G voice it says line is busy thats ok but every time I try tocall through the network it says the same means this is not at all good and it is Untrustable during emergency situations. Despite its free usage and a step towards DIGITAL INDIA but the main thing is that if we have to digitilize India we have to digilize the villages and villagers didt carry a VOLTE unabled smartphones in their pockets.