If there are messages in your Trash folder, you can restore them to the Inbox.
Note: Messages will remain in the Trash folder for the amount of time specified in the Voicemail Setting called "Delete Messages."
1. From your voicemail Inbox, tap Inbox in the top header to display the folders list.
2. Select Trash to open the Trash folder. The list of all recently deleted messages appears.
3. Tap and hold the message that you want to restore.
4. Tap Restore to Inbox
5. To return to the Inbox, select Trash in the header and select Inbox from the folders list.