There are not much you can find and from Cisco document you can find the following to check the logs. You can find the logs in the directory that you installed D:\Program Files\Cisco\WFO_QM\log\admin.log. No surprise on the admin logs I saw the same ...
Adding to that, Cisco IP Phone 7841 shows all 30 characters, and when there is not enough space because of miss calls or voice messages notification, that goes to next line.
