Consider the following scenario:
You install the November 2011 cumulative update for Microsoft Lync 2010 or a later cumulative update.
A delegate is assigned a conferencing policy that prevents the delegate from using the desktop sharing and data collaboration features. However, you are assigned a conferencing policy that does not prevent you from using these features.
The delegate schedules a private online meeting on your behalf.
You join the online meeting by using Lync 2010.
In this scenario, the desktop sharing feature and other collaboration features do not work in the meeting.
This issue occurs because the FilterConferenceModesBasedOnPolicy function does not apply the correct policy to the meeting when the function filters the conference mode that is based on the conferencing policy.
To resolve this issue, install the following cumulative update:
2884632 Description of the cumulative update package for Lync 2010: October 2013
For more information about the November 2011 cumulative update for Lync 2010, click the following article number to view the article in the Microsoft Knowledge Base:
2514982 Description of the cumulative update package for Lync 2010: November 2011
For more information about a related issue, click the following article number to view the article in the Microsoft Knowledge Base:
2639837 "An error occurred during the online meeting." notification when a user tries to join an online meeting that is created in Outlook by using Lync 2010