When I get a call, email, text message..etc.. my phone will make a noise once.. and then the LED will flash green. HOWEVER.. if I don't notice it.. it seems after a few minutes the LED stop blinking green. I often leave my phone on my night stand.. step out of the room for awhile.. come back.. look at the phone and the LED is not blinking.. but when I wake up the phone I show a missed call, new email, new text, etc. Is this how it is supposed to work?? should the green LED keep flashing until I check the phone?