回答“Why do callers hear an echo during phone calls?”Callers to my Galaxy II get the echo. Only after answering tap the bottom left menu; then put noise reduction to off. This works, but doesn't always stay off with future calls. My sales person clued me in on the solution fix...said it happens when a protector case is used, but haven't tried receiving a call with it off yet to see. I don't like to carry it in my pocket with no protection even if that works.