Use the Client Version Check tab to configure client version filtering to restrict the client versions used in your Office Communications Server environment.
Enable Version Control
To restrict the client versions used in your Office Communications Server environment, select the Enable Version Control check box.
Client application version control
This list includes the specific client application versions that are allowed and blocked.
To add a client version (that is, that you want to allow or block) to the list of added and blocked client versions, click Add.
To change the settings for a blocked or allowed client version, click the user agent heading of the client version, and then click Edit.
To delete a blocked or allowed client version from the list, click the user agent heading of the client version, and then click Remove.
Default behavior if no match
To configure the default behavior if a client tries to log on using a client version that does not match any of the filters in the Client application version control list, in the Action drop-down list box, click the appropriate action:
To allow the client to log on to the pool, click Allow.
To prevent the client from logging on to the pool, click Block.
To prevent the client from logging on to the pool and also display a message to the user indicating that the client version is not supported, click Block with Static URL. If you choose this option, type the URL in URL that you want use to display the message.
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With Client Version Filter, you can specify the version of clients that are supported in your Office Communications Server environment.
Client Version Filter for Office Communications Server provides the following:
Filtering of Office Communicator and legacy instant messaging (IM) clients
Filtering of Office Live Meeting clients
When two clients of differing versions interact, the features that are available to either client can be limited by the capabilities of the previously released client. To make the greatest use of features included in Office Communications Server and to improve the overall user experience, you can use Client Version Filter to restrict the client versions that are used in your Office Communications Server environment. By using Client Version Filter, you can also help improve costs associated with supporting multiple client versions.
When an Office Communicator client, legacy IM client that supports SIP INVITE messages, or Office Live Meeting client logs on, Client Version Filter checks the version of the client and takes action according to the client version. Client Version Filter checks the SIP User Agent header to determine the client version.