You cannot join a meeting that was created in a Lync Server 2013 environment by using Internet Explorer on a Windows Phone 8 device

Applies to: Lync Server 2013

Symptoms


Assume that you receive a meeting invitation that was created in a Microsoft Lync Server 2013 environment. When you click the meeting hyperlink in Internet Explorer on a Windows Phone 8 device, the mobile client for Lync Server 2013 does not start. Then, you are prompted to sign in to Lync Web App (LWA). 

Cause


This issue occurs because the Join Launcher application incorrectly reads the user agent string of the Windows Phone 8 device.

Resolution


To resolve this issue, install the following cumulative update:
2781564 Description of the cumulative update for Lync Server 2013, Web Components: February 2013

Workaround


To work around this issue, join the meeting by using the Meeting pane in a Lync 2013 for Windows Phone client.

More Information


For more information about the new conferencing features, go to the following Microsoft website: