The usage of Reliance Jio SIM cards for voice calls surged in the year 2018 as per a UBS report.
The report mentioned that about 92 per cent of the Jio subscribers utilised the network for voice calls during the period- December 2018-January 2019 as compared to 83 per cent of the subscribers in the March-April 2018, the report said.
A survey performed across 13 cities of the country reflected that Airtel’s usage as the primary data SIM spiked to 95 percent during the December-January period as against 83 per cent in March-April 2018.
The survey was carried out in cities including New Delhi, Mumbai, Bangalore, Kolkata, Nagpur, Patna, Vishakhapatnam, Jodhpur, Udaipur, Alwar, Salem, Raipur and Allahabad.
