January 2018 cumulative update 6.0.9319.514 for Skype for Business Server 2015, Front End Server and Edge Server

This cumulative update fixes some issues that occur in Microsoft Skype for Business Server 2015, Front End Server and Edge Server. The version number of this update is 6.0.9319.514.

Note Server-side conversation history in branch site deployments is no longer supported in the March 2016 cumulative update.

This cumulative update fixes the following issues:

• KB 4056279 Non-LBR enabled user can join a LBR enabled PSTN call in Skype for Business mobile clients
• KB 4056285 Precedence of Skype for Business Online user's caller ID in cloud PBX with PSTN connectivity

This cumulative update also fixes the issues that were previously listed in the following Microsoft Knowledge Base articles:

• KB 4036312 December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Front End Server and Edge Server
• KB 4012621 May 2017 cumulative update 6.0.9319.281 for Skype for Business Server 2015, Front End Server and Edge Server
• KB 3207506 February 2017 cumulative update 6.0.9319.277 for Skype for Business Server 2015, Front End Server and Edge Server
• KB 3199093 November 2016 cumulative update 6.0.9319.272 for Skype for Business Server 2015, Front End Server and Edge Server
• KB 3149227 June 2016 cumulative update 6.0.9319.259 for Skype for Business Server 2015, Front End Server and Edge Server
• KB 3134260 March 2016 cumulative update 6.0.9319.235 for Skype for Business Server 2015, Front End Server and Edge Server
• KB 3097645 November 2015 cumulative update 6.0.9319.102 for Skype for Business Server 2015, Front End Server and Edge Server
• KB 3061059 June 2015 cumulative update 6.0.9319.55 for Skype for Business Server 2015, Front End Server and Edge Server

To obtain this update, submit a request to Microsoft Customer Service and Support through the following Microsoft website:

http://support.microsoft.com/contactus/?ws=support

Prerequisites

There are no prerequisites for installing this cumulative update.

Registry information

To use one of the cumulative updates in this package, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this cumulative update.

Update replacement information

This cumulative update replaces the December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Front End Server and Edge Server.

Update package installation information

To apply this cumulative update, you must follow the steps that are described in Updates for Skype for Business Server 2015 (KB3061064) on computers that are running the following server roles:

• Skype for Business Server 2015, Standard Edition server
• Skype for Business Server 2015, Enterprise Edition - Front End Server
• Skype for Business Server 2015, Edge Server

Removal information

Before you uninstall this cumulative update, you must first uninstall all cumulative updates of core components whose version number is 6.0.9319.55 or later for Skype for Business Server 2015, core components. Otherwise, you won't be able to start the RTCSRV service.

To remove both cumulative updates, follow these steps.

Note We recommend that you see the instructions that are described in Updates for Skype for Business Server 2015 (KB3061064) when you remove both cumulative updates.

1. Open Control Panel, and then select Program.
2. Select Installed Updates.
3. Uninstall all updates of core components that are of version 6.0.9319.55 or a later version:
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4074705) with version 6.0.9319.514. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4036311) with version 6.0.9319.510. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4012620) with version 6.0.9319.281. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3207502) with version 6.0.9319.277. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3199088) with version 6.0.9319.272. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3149226) version 6.0.9319.259. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3134259) version 6.0.9319.235. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3097644) version 6.0.9319.102. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3090687) version 6.0.9319.72. Then, select Uninstall.
4. Uninstall the updates for Skype for Business Server 2015 (Front End server and Edge server) that are of version 6.0.9319.55 or a later version:
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4074701) with version 6.0.9319.514. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4036312) with version 6.0.9319.510. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4012621) with version 6.0.9319.281. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3207506) with version 6.0.9319.277. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3199093) with version 6.0.9319.272. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3149227) version 6.0.9319.259. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3134260) version 6.0.9319.235. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3097645) version 6.0.9319.102. Then, select Uninstall.
   
   Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3061059) version 6.0.9319.72. Then, select Uninstall.