Reliance Jio Info comm limited or more preferably known as Jio. Moreover, it is a subsidiary of Reliance industry which was founded on the year 2015 by Mukesh Ambani, chairman Jio. Jio is one of India’s biggest telecommunication company. Also, it is famous for operating a national LTE network which coverage across all 22 telecom circle. Consequently, Jio offers a 4g service and currently using voice over LTE to provide the required voice service in its 4G network circle.