Bharti Airtel Limited is an Indian global telecommunications services company based in New Delhi, India. It operates in 18 countries across South Asia and Africa. Airtel provides GSM, 3G and 4G LTE mobile services, fixed line broadband and voice services depending upon the country of operation. Airtel is also testing VoLTE technology across five cities in India and should roll out the technology towards the end of 2017.
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