After lavishing consumers with discounts, freebies and dirt cheap tariffs, big telecom operators like Idea, Vodafone and Airtel have hiked rates in a bid to contain dwindling profits, high costs and squeezed margins. Experts Venugopal Dhoot, CMD of Videocon; Rajan Mathews, director general, COAI; SC Khanna, former secretary general of AUSPI; Nripendra Misra, former chairman of TRAI, and Abhishek Anand, research analyst at Centrum Wealth Management, discuss if the era of cheap telephony in India is over?