Keeping phone on hearing assist mode (forgot exact term) has been proven to reduce "Hum" bolt gives on call, however, you cannot adjust volume.
Anyone like me use it, not because hum is annoying but because default is so loud, even when turned down. Others in room can hear conversation.
Anyone like me use it, not because hum is annoying but because default is so loud, even when turned down. Others in room can hear conversation.
