Doing business as Jio, is a LTE mobile network operator in India. It is a wholly owned subsidiary of Reliance Industries headquartered in Mumbai, that provides wireless 4G LTE service network ( without 2G/3G based services) and is the only ’VoLTE-only’ ( Voice over LTE) operator in the country which lacks legacy network support of 2G and 3G, with coverage across all 22 telecom circles in India.[3][4]
The services were first beta-launched to Jio’s partners and employees on 27 December 2015 on the eve of 83rd birth anniversary of late Dhirubhai Ambani, founder of Reliance Industries, [5][6] and later services were commercially launched on 5 September 2016