Description of the cumulative update for Lync Server 2010: August 2011

This article describes the cumulative update for Microsoft Lync Server 2010 hotfix package that is dated August, 2011.  

Issues that this update package fixes

This cumulative update fixes the following issues:

• 2565378  (http://support.microsoft.com/kb/2565378/ ) An update is available to improve the efficiency of PSTN call routing in Lync Server 2010
• 2592289  (http://support.microsoft.com/kb/2592289/ ) The SIP addresses in the address book file are missing in a Lync Server 2010 environment

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

There are no prerequisites for installing this update.

Restart requirement

You do not have to restart the computer after you apply this update.

Hotfix replacement information

This cumulative update replaces the following previously released cumulative update:

Registry information

To use one of the update packages in this package, you do not have to make any changes to the registry.

Update package installation information

To apply this cumulative update, install the KB2571546-amd64-Server.msp package on the following computers:

• Lync Server 2010 – Standard Edition Server
• Lync Server 2010 – Enterprise Edition - Front-end
• Lync Server 2010 – Enterprise Edition – Standalone Audio Video Conferencing Server

Removal information

To remove this cumulative update, use the Add or Remove Programs item in Control Panel.

Sometimes, when you try to uninstall the cumulative update, you are prompted for the source CD. If you are prompted for the source CD, insert it. Or, provide the path where the source files can be found.

File information

This update may not contain all the files that you must have to fully update a product to the latest build. This update contains only the files that you must have to correct the issues that are listed in this article.

After the update is installed, the global version of this update has the file attributes, or a later version of the file attributes, that are listed in the following table:

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:For more information about the latest updates for Lync Server 2010, click the following article number to view the article in the Microsoft Knowledge Base: