Hello & Welcome to Just Answer,
Sorry to hear of any trouble you may be having.
In order to help with this issue, may I ask for a bit more detail, such as:
1) Are you trying to retrieve (open) a "voice mail", or something else?
2) What phone service provider (phone company) do you have for this phone line?
I see it has been a few days and I just wanted to follow up to see if you have any more questions concerning this issue or if the issue was resolved.
I look forward to any further questions or results that you may have.
Thanks, ***** *****--. .-(im)