Article ID: 2745103 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the special characters are handled incorrectly by the URL parser.
To resolve the issue, install the following cumulative update:
(https://support.microsoft.com/kb/2737915/ )Description of the cumulative update for Lync Server 2010: October 2012
For more information about how to configure filtering for instant messaging, go to the following Microsoft website:
How to configure filtering for instant messaging
Article ID: 2745103 - Last Review: November 2, 2012 - Revision: 4.0