Mtn customer service consultants doesn't even know what hd voice calling is or VoLTE. I had to explain it to them to no success! Mine was deactivated, wanted them to reactivate it. And the best is it's on their website. Any suggestions how I can get running again?
Why tolerate bad phone audio?
Despite all the technological advances in the communications environment, the quality of voice communication has not improved much from the early-day carbon microphone.