Lights
You will notice a "new call" light and a "message" light at the top of
the phone. The "new call" light will flash when any new calls are
received, whether that caller leaves a message or not. This light will
continue to flash until you review all the incoming stored calls. To
review - press, "review up" or "review down".
When the "message" light is green, that means that someone has left a message for you in voicemail. The method for accessing your voicemail messages has not changed. The green light will go off when you have listened to all messages.