Extension has no voicemails, but orange indicator is still lit

Jonathen Barcellona

I have a user who checked and deleted his voicemail, but his orange indicator light continues to stay lit.  The phone is a Mitel 5320 16-key phone.  Is the voicemail light also used to indicate something else or is this indicative of a problem with the phone or extension?  The phone was rebooted, but the light is still lit.

Marquiese Gilmore

I also have this exact issue with my Mitel 5330 IP phone.