16 March 2016 Current Affairs: Reliance Jio, the country's only pan-India 4G operator, is reportedly in advanced level talks with BSNL to use the latter telco's network and infrastructure for voice operations across all 22 telecom circles, under the intra-circle roaming pact. The state-run telco has fixed its charges for voice roaming pact at 25 paise per minute for any telco that wants to enter into intra-circle roaming pact with it. BSNL CMD Anupam Srivastava however informed a Financial Express that the telco would not be able to cut down its tariff for sharing network with other operators, confirming talks with Reliance Jio. State-owned BSNL is all set to ink its first intra-circle roaming (ICR) agreement with mobile services company Aircel, a move that will shore up its revenues, DNA earlier reported. In December 2015, Reliance Jio had launched its 4G services for group employees. Jio has substantially optimized its network and is currently testing service offerings across the breadth of the country. The commercial launch is widely expected in March-April. Jio had last year given a contract worth $100 million (about Rs 670 crore) to Nokia for pan-India VoLTE deployment. It is primarily banking on VoLTE technology to provide voice services in India. VoLTE allows an operator to offer both voice and data without switching between bands, with voice being just another application that rides on an LTE data network, a technology that Jio has adopted.