I need some information on the flashing red light indicator that flashes when you receive new messages. I notice that it times out after awhile....not staying on even if i haven't checked my messages and indeed still have new messages. Does anyone know the basics on this? I could not find anything in my manual. It would be good to know how this feature works. For example, I may wake in the morning and have 21 new messages, but no blinking. Does it stop blinking after a while to save battery life?? I have no clue. Thanks so much for all your help/advice.