The Missed Call Indicator alerts you with a blinking green light whenever you miss an incoming call. This feature is independent of the voicemail-to-email feature.
No matter how carefully you set up your Find-Me/Follow-Me feature, you’ll still miss a call now and then—often by design. For example, you’ll likely put your phone on silent when you’re in a meeting. The Missed Call Indicator lets you know when someone is trying to reach you.