text: ---
  title: "Persistent Chat Machines Expander"
  ms.reviewer: 
  ms.author: v-lanac
  author: lanachin
  manager: serdars
  ms.date: 3/27/2015
  audience: ITPro
  ms.topic: article
  f1.keywords:
  - CSH
  ms.custom:
  - ms.lync.tb.PersistentChatMachinesExpander
  ms.prod: skype-for-business-itpro
  localization_priority: Normal
  ms.assetid: 15bc1c8f-71bd-4d66-bba1-cac0f2fe90bf
  description: "You activate or deactivate a deployed Persistent Chat Server or Persistent Chat Server pool by using the servers or pools listed in Machine state settings. You select a server or pool in the list and click the Make active button to set a server or pool as active."
  ---
  
  # Persistent Chat Machines Expander
   
  You activate or deactivate a deployed Persistent Chat Server or Persistent Chat Server pool by using the servers or pools listed in **Machine state settings**. You select a server or pool in the list and click the **Make active** button to set a server or pool as active.
    
  You set a deployed Persistent Chat Server or Persistent Chat Server pool to inactive by selecting the server or pool in the list and click **Make inactive**. At least one server must be set to active.
    
   **OK** Accepts and commits changes to the dialog.
    
   **Cancel** Discards changes and closes the dialog.
    
   **Help** Displays this help screen.
    
  ## See also
  
  [Plan for Persistent Chat Server in Skype for Business Server 2015](../../plan-your-deployment/persistent-chat-server/persistent-chat-server.md)
    
  [Add Persistent Chat Server to your Skype for Business Server 2015 topology](../../deploy/deploy-persistent-chat-server/add-persistent-chat-server.md)
  