The days of unlimited free voice calling across networks are over for Indian customers with Airtel, Vodafone-Idea and Reliance Jio ending free outgoing services. From December 3, the customers will have to pay 6 paisa per minute for outgoing calls after exceeding the quota of free minutes. Voice calls will, however, continue to be completely free when customers call someone on the same network​.

from Times of India https://timesofindia.indiatimes.com/business/india-business/your-mobile-bills-set-to-get-expensive-as-unlimited-free-calling-across-networks-ends/articleshow/72320311.cms