Article ID: 2793013 - View products that this article applies to.
Consider the following scenario:
Encryption policy does not match.
This issue occurs because the Lync for Mac 2011 client does not accept the initial invite that requires an encrypted connection.
To resolve the issue, install the following cumulative update:
(http://support.microsoft.com/kb/2778095/ )Description of the Microsoft Lync for Mac 2011 14.0.4 update
For more information about the Set-CsClientPolicy cmdlet, go to the following Microsoft website:
General information about the Set-CsClientPolicy cmdlet