I am running Unity Connection single mailbox. All UM functions work except TTS. When I try it it fails with a System failed to perform an IMAP operation.
Do you have the IMAP service running on your Exchange 2003 server(s)? Are you seeing any errors in your Exchange server's application event log? Here is a link to the 8.5 guide -
To Create Unified Messaging Accounts to Link Cisco Unity Connection 8.5 Users to Exchange Mailboxes", steps 6 and 7 for Exchange 2003.
Thanks, Ginger
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