Can I recover deleted voice messages on my Samsung Galaxy S3?
Voice messages are always stored on the carrier's servers which in this case you will need to dial the number to your voicemail and all the messages will be there from where you can listen or delete them.
That doesn't answer the question how to get bck voice mails accidently deleted .How
Use a samsung data recovery tool, you can find back the lost data from your phone easily, like deleted contacts, text messages, memos, music and videos.