nokia 521 smart phone backlight does stay on when making a call or when I'm am speaking

[David EWilson]

My nokia 521 smartphone backlight doesn't stay on when I am speaking , which make it difficult to respond to commands given by automated system or to see how many minutes are use or whom I speaking to

 

[modernwar99]

On most phones when you hold it up to your ear the screen automatically turns off to prevent you from clicking things when you touch it to your face. My iphone 5 does that but when you pull it away from your face it turns back on.