I have a IP0 500V2 8.1(52) that has a UC module that isn't working properly. They are also using voicemail pro. You can leave messages in the voicemail box but no indication light shows up on the phones. When you try to access the mailbox from the phones there is no message in the mailbox. The auto attendant is working fine too. System status shows no problems on the UC Module and has plenty of space available. They do have voicemail to email set up as well, and no indication shows up in the email boxes either? Any ideas?!