Cisco Cisco Computer Telephony Integration Option 9.0 Troubleshooting Guide

On Windows XP systems that have installed the Oracle 32 bit client, some 

icons on the CTIOS Agent Desktop or CTI Toolkit IPCC Supervisor Desktop  
appear as black squares.

Oracle install has registered old COM components. It may be 

possible to correct this problem by performing the following steps:

Shut down all applications, including the desktop

Open a command prompt window

CD to c:\windows\system32

Run regsvr32 oleaut32.dll

When a “DllREgisterServer succeeded “ message box appears, click OK

Restart the desktop

The CTI OS Desktop does not prompt for Logout and/or NotReady 

reason codes on TDM (non-IPCC) switches.

The LogoutReasonRequired and NotReadyReasonRequired 

registry values explained in the table can be used to enable this functionality. 
(Refer to the CTI OS System Manager's Guide for Cisco ICM/IPCC Enterprise 
& Hosted Editions for information.) In brief, the registry keys listed below 
need to be set to 1.