Working on Option 11 with Hospitality. When the PMS trasmits info. of checked in guest. The link from the PMS to Mail goes down. Then seconds later comes back up. I have tryed changing out TTY. Connections reterminated. Hotel PMS support says my equipment. I have rebooted voicemail and PMS has rebooted their equipment. Still no change. Problem the same. Any other steps I need to do???