Unlimited High Speed Data and Calling options through 4G VOLTE technology, thats what Jio does and does it quite well. There are few issues on speed and network coverage but its ok because still it is in the testing phase and the service offered is free and also it has been extended till march 2017. Overall a great venture and looking forward to the other services viz fibrenet and television services which is expected to start mid 2017 by Jio.