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Modify the Default Action for Clients Not Explicitly Supported or Restricted

 

Topic Last Modified: 2013-02-23

In addition to specifying the version of clients that you want to support in your Lync Server 2013 environment, you can also specify a default action for clients that do not already have a version policy defined. This enables you to restrict which client versions are used in your Lync Server environment, which can help you control the costs associated with supporting multiple client versions.

  1. From a user account that is assigned to the CsUserAdministrator role or the CsAdministrator role, log on to any computer in your internal deployment.

  2. Open a browser window, and then enter the Admin URL to open the Lync Server Control Panel. For details about the different methods you can use to start Lync Server Control Panel, see Open Lync Server Administrative Tools.

  3. In the left navigation bar, click Clients, and then click Client Version Configuration.

  4. On the Client Version Configuration page, double-click the Global configuration in the list.

  5. In the Edit Client Version Configuration dialog box, verify that the Enable version control check box is selected and then, under Default action, select one of the following:

    • Allow   Allows the client to log on if the client version does not match any filter in the Client version policies list.
    • Block   Prevents the client from logging on if the client version does not match any filter in the Client version policies list.
    • Block with URL   Prevents the client from logging on if the client version does not match any filter in the Client version policies list, and include an error message containing a URL where a newer client can be downloaded.
    • Allow with URL   Allows the client to log on if the client version does not match any filter in the Client version policies list, and include an error message containing a URL where a newer client can be downloaded.
  6. If you selected Block with URL, type the client download URL to include in the error message in the URL box.

  7. Click Commit.

  • To disable version control to allow all clients to log on regardless of the client version, clear the Enable version control check box, and then click Commit.

The default action to be taken when users try to sign on using clients that are not explicitly supported or restricted by a client version policy can be managed by using Windows PowerShell command-line interface and the Set-CsClientVersionPolicy cmdlet. This cmdlet can be run either from the Lync Server 2013 Management Shell or from a remote session of Windows PowerShell. For details about using remote Windows PowerShell to connect to Lync Server, see the Lync Server Windows PowerShell blog article "Quick Start: Managing Microsoft Lync Server 2010 Using Remote PowerShell" at http://go.microsoft.com/fwlink/p/?linkId=255876.

  • The following command sets the default action for the Redmond site Block. This will block registration for any client for which no client version configuration rule exists.

    Set-CsClientVersionConfiguration -Identity "site:Redmond" -DefaultAction Block
    

  • In this example, the default action for the Redmond site is set to Allow. This will allow registration for any client for which no client version configuration rule exists.

    Set-CsClientVersionConfiguration -Identity "site:Redmond" -DefaultAction Allow
    

For details, see the Help topic for the Set-CsClientVersionPolicy cmdlet.

 
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