Reset the Voicemail Light on a Cisco IP Phone

Most Cisco IP phones have an indicator light that provides visual notification for new voicemail messages. Occasionally a phone may lose synchronization with a user's voicemail inbox status, resulting in this light being on despite a lack of any new messages.

Solution

Steps

Call 8662 from the affected phone.
The call will not go through (or even ring), but the message light status indicator will be reset.