Article ID: 2637591 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the location information from the client contains special XML characters. Therefore, the server cannot handle the XML message that is sent by the Lync 2010 client.
To resolve this issue, install the following cumulative update:
(http://support.microsoft.com/kb/2514982/ )Description of the cumulative update package for Lync 2010: November 2011