Description of the update package for Communications Server 2007: August 2008

List of issues that are fixed

This update fixes the following issues:

• 952787  (http://support.microsoft.com/kb/952787/ ) A digest in a Session Initiation Protocol (SIP) Referred-By header uses a non-standard base64 encoding in Communications Server 2007
• 952785  (http://support.microsoft.com/kb/952785/ ) Outgoing calls from Communications Server 2007 Mediation Server may not be routed correctly

Update package information

To obtain this update, visit the following Microsoft Web site: The update appears in High-Priority Updates under Microsoft Office Communications Server 2007.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

If you are an administrator, you may want to download this update and then distribute it to clients. To download the update to a folder of your choice, visit the following Microsoft Web site: When you search for Communications Server 2007, all the updates that are available for Communications Server 2007 are shown.

Prerequisites

There are no prerequisites for installing this update.

Restart information

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

Update replacement information

This update package replaces the following update package:

Registry information

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

Removal information

To remove this update, use the Add or Remove Programs item in Control Panel. When you try to uninstall the update package, you may be prompted for the source CD. In this case, insert the source CD, or provide the path of the source files.

Update package installation information

To install this update package, install the OCS2007-KB952783-x86-Server.msp package on the following computers:

• Office Communications Server 2007 Standard Edition Server
• Office Communications Server 2007 Enterprise Edition Server – Front End
• Office Communications Server 2007 Proxy Server
• Office Communications Server 2007 Director Server
• Office Communications Server 2007 Edge Server
• Office Communications Server 2007 Forwarding Proxy

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, click the following article number to view the article in the Microsoft Knowledge Base: