How do I clear a mailbox full warning when only a few messages show?
Answer
Delete messages from all mailboxes and folders, including old or saved messages and any additional extension mailboxes, then hang up and test with a new voicemail.
Before you start: stop right away if…
- Deleting messages permanently removes those recordings unless your system offers an archive feature.
Follow these steps
Play and delete every visible message
On the handset or base, play each message and delete it, including any marked as saved or old.
You should see: The visible message count drops to zero.
Check other mailboxes or handsets
If the system has multiple mailboxes or extensions, open each one and delete messages there too.
You should see: No mailbox still holds hidden or saved messages.
Erase greetings only if needed
If the full warning remains, review the manual option to reset or re-record greetings that can consume answering memory on some systems.
You should see: Memory frees up and the full warning clears.
Test with a new call
Call the line from another phone and leave a short voicemail, then confirm it appears and can be deleted.
You should see: Callers can leave messages again without hearing mailbox full.
Not sure this is the right page? Check here
0 of 5 checked
Extra tips
What to look for: A mailbox full announcement to callers, only a couple of visible messages on the handset, and whether there are multiple mailboxes or saved-message folders
Before you change anything: Write down any important saved messages you still need. Check every handset or mailbox number on the system. Avoid a full base reset until mailbox erase options are tried. Do not share remote mailbox PINs with unexpected callers.