Airtel upgrades over 9k sites under Open Network
India's largest telecom operator Bharti Airtel on Thursday said its 'Open Network' initiative, which offers customers network information and seeks their feedback, has led to upgradation of over 9,000 sites and optimisation of over 30,000 existing ones. Putting up new towers is under way, it added. Airtel last year announced investment worth ₹60,000 crore under its network transformation drive.