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There has been a new round of updates for Communicator 2007 R2, OCS 2007 R2, and OCS 2007 R2 Group Chat – known as Cumulative Update 6 (CU6).

** July 26, 2010 Update **:  There have been several reports of problems (failure of the Front End Service to start) after applying the CU6 updates on the server. Consider holding off applying this update until more information is known.  It is important to install the CU 6 update to the back end database role first (see Description of the cumulative update package for Office Communications Server 2007 R2 database: July, 2010).  So far, the problems appear to be related to this, but more information to come.

Client Updates

Communicator 2007 R2:

• The July, 2010 update for Communicator 2007 R2 can be found here:  Description of the cumulative update package for Communicator 2007 R2: July 2010. This update brings the Communicator version up to 3.5.6907.206 from the last update in April 2010 (3.5.6907.196).
• Note: the links to the knowledge base article for the individual fixes do not work right now, or not ready yet, on the Microsoft support site.
• The update can be downloaded here.

Communicator 2007 R2 Phone Edition:

• The July, 2010 update for Communicator 2007 R2 can be found here: http://support.microsoft.com/kb/2267962/.
• The update can be downloaded here.

Communicator 2007 R2 Mobile:

• This was update was released about 2 weeks ago, but the knowledge base article has been updated. The description can be found here: http://support.microsoft.com/kb/969816.
• You can download the Smartphone update here.
• You can download the Pocket PC packager here.

OCS 2007 R2 Group Chat Client:

• The July 2010 update can be found here: Description of the update for Office Communications Server 2007 R2 Group Chat Client: July 2010.
• The update can be downloaded here.

Server Updates

OCS 2007 R2 Server:

• Note: the update for the SE/EE Back End Database is here: Description of the cumulative update package for Office Communications Server 2007 R2 database: July, 2010.  This update (OCS2009-DBUpgrade.msi) SHOULD BE RUN FIRST.
• All of the Cumulative 6 server updates can be found here: Updates for Communications Server 2007 R2.
• The updates can be downloaded here.
• It looks like the update includes new hotfixes for the following server roles: Audio/Video Conferencing, Web Conferencing Server, Core Components, Communicator Web Access, Conferencing Attendant, Standard/Enterprise edition Server Back End, and the UCMA Managed API 2.0 Core Redist 64-bit.
• Note: the links to the knowledge base article for the individual fixes do not work right now, or not ready yet, on the Microsoft support site.

OCS 2007 R2 Group Chat Server:

• The Cumulative 6 updates for the Group Chat Server can be found here: Update package for Office Communications Server 2007 R2 Group Chat Server: July 2010.
• The Group Chat Server update can be downloaded here.

OCS 2007 R2 Group Chat Admin Tool:

• The update can be found here: Description of the update for the Office Communications Server 2007 R2 Group Chat Administration Tool: July 2010.
• The update can be downloaded here.

This poster gives you a visual of the different Communications Server 2007 R2 workloads, including how certificate requirements and DNS and firewall configuration come into play.

Overview

This poster of Office Communications Server 2007 R2 describes the traffic flow of protocols and ports used in each workload. Communications Server 2007 R2 supports the following workloads: IM and Presence, Conferencing, Application Sharing, and Enterprise Voice. These filtered views can assist you in architecting your deployment of Communications Server 2007 R2. The different server roles are described along with server certificate requirements. Firewall and DNS configuration requirements are also described.

Download here