Article ID: 2736033 - View products that this article applies to.
Consider the following scenario:
Could not connect to conference
Note When you click the Join online meeting link again, you join the meeting successfully.
This issue occurs because the cached web ticket that Lync 2010 for Windows Phone uses to set up an authentication session expires. Therefore, the user cannot join the meeting.
Note When you click the link again, Lync 2010 for Windows Phone uses a new web ticket to set up a new session.
To resolve the issue, install the following cumulative update:
(http://support.microsoft.com/kb/2737907/ )Description of the cumulative update package for Lync 2010 for Windows Phone: October 2012