India’s largest mobile operator Bharti Airtel has indicated that entry of newcomer Reliance Jio could lead to lowering of prices to some extent, but ruled out across-the-board free voice calls for all mobile plans.Terming the telecom sector as a “brutally competitive market”, Gopal Vittal, MD and CEO, India and South Asia, Bharti Airtel, said that while competitors kept the company on its toes, it was not “obsessed” with them.