Bharti Airtel has introduced high quality voice service for its subscribers in Kenya, Rwanda, Malawi and Nigeria in the African sub-continent.
The operator has become the third service provider to launch a mobile HD voice service in Africa. The HD voice service will help the operator enrich end customer experience by offering them clearer voice calls.
The service is based on adaptive multi rate wideband technology (W-AMR) which operates with nine different bit rates, providing high quality voice calls. In comparison to the current narrow-band speech codec device, the W-AMR speech-compression algorithm doubles voice bandwidth and produces better quality voice.
