CDET Reference - CSCva24885 This communication pertains to customers that are: - Planning to upgrade to Cisco Unified Communications Manager v11.5 - Carrying out new installations of Cisco Unified Attendant Console Standard against Cisco Unified Communications Manager 11.5 Defect CSCva24885 requires users to apply the included patches after installing Cisco Unified Attendant Console Standard. Cisco Unified Attendant Console Standard - Patch v11.0.2.471 - Installation Instructions This patch should only be installed when using the console with Cisco Unified Communications Manager 11.5.x. By applying this patch to an install, you may use the 11.5 tapi version installed during the installation of Cisco Unified Attendant Console Standard as opposed to carrying out the workaround referenced under CSCva24885- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCva24885. 1) Close the "Cisco Unified Attendant Console Standard" Application 2) Navigate to \Program Files (x86 if using 64-bit OS)\Cisco\Cisco Unified Attendant Console Standard 3) Create backups of the x64 and x86 folders 4) Copy ASTAPI2x.dll from Patch - Dotnet_Win32 folder to the x86 repository from step 2. 5) Copy ASTAPI2x.dll from Patch - Dotnet_Win64 folder to the x64 repository from step 2. 6) Installation complete, you may resume operation of the console.