In which year Bharti Airtel has launched HD voice service in Africa?
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In the month of March 2013 Bharti Airtel has launched an HD voice service in Africa. With the launch of service Airtel becomes the third operator to launch a mobile HD voice service in Africa. Further launches will be scheduled in 2013. The benefit of HD voice service is that, customers can talk normally and be heard clearly, without having to raise their voice, even in noisier environments. It is based on AMR (Adaptive Multi Rate) wideband technology (W-AMR) which operates with nine different bit rates, providing high quality voice calls.
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