Article ID: 978719 - View products that this article applies to.
You use some USB audio devices to make calls in Microsoft Office Communicator 2007 R2. When you mute the microphone, CPU usage may increase significantly.
To fix this problem, apply the following update:
(http://support.microsoft.com/kb/976135/ )Description of the Communicator 2007 R2 cumulative update: January 2010
Contact us for more help
Connect with Answer Desk for expert help.