Skype for Business Server 2015 January 2018 Cumulative Update (CU6 HF1)

Noticed this morning on twitter from @uclobby there’s been a hotfix for December 2017 CU seems the Jan 2018 is CU6 HF1 . 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.

Seems to get your paws on this you need to open a support ticket! perhaps its not fully tested for GA yet.

It notes this is an CU hotfix it seems for the Front End and Edge Servers roles.

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

Update Version is now 6.0.9319.514

Whats the fixes and improvements ?

The first link i found only had 3 fixes two for LBR and one for Caller ID for Phone System if using Phone System via on premises deployment.

BUT

then i found another link and theres a ton of stuff it seems !!!

Fixes for deployments
Mac client fix for joining meetings
Support for new-CsCallingLineIdentity for SfB Hybrid
and more !! check it out below

MAC Users

For Mac users theres some updates as well

Support for location-based routing of phone calls

Your administrator can control how calls to or from people outside of your organization are handled based on the location of the parties in the call.

Display IM disclaimers

Skype for Business on Mac will display a disclaimer message at the beginning of every IM conversation if your organization specifies them.

Microsoft Advices for this CU seems to be below:

Microsoft recommends that you install this update only if you need these features or experience any of the issues described in the "Improvements and fixes" list for the release. When the update is installed, users of Skype for Business on Mac will see the following improvements:

How to get update ? – THIS SEEMS TRICKY FOR SOME REASON !

Seems at the moment you have to request this update from Microsoft. Perhaps its early days and it seems to provide fixes only for specific situations for LBR or Caller ID for Phone System (Cloud PBX) with On premises PSTN connectivity .

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

Ive tried but it seems i have to pay to get hold of it. Perhaps its not fully ready yet.

Full details on Fixes

This cumulative update fixes the following issues:

Fixes	Cause and Fix
Found these 3 here	https://support.microsoft.com/en-us/help/4074701/january-2018-cumulative-update-6-0-9319-514-for-skype-for-business
KB 4056279 Non-LBR enabled user can join a LBR enabled PSTN call in Skype for Business mobile clients	Assume that you are Location-Based Routing (LBR) enabled on a LBR enabled network site in Microsoft Skype for Business Server 2015. Then, you start a public switched telephone network (PSTN) call. When you right-click and then select the Skype Calloption to add a non-LBR enabled user from a Skype for Business mobile client, the user is added to the PSTN call successfully. However, the user should not be added to the PSTN call successfully because the call is from a LBR enabled gateway. To fix this issue, install the January 2018 cumulative update 6.0.9319.514 for Skype for Business Server 2015, Front End Server and Edge Server.
KB 4074760 LBR enabled PSTN call can be transferred to a non-LBR enabled user in Skype for Business Server 2015	Assume that you are Location-Based Routing (LBR) enabled on an LBR enabled network site in Microsoft Skype for Business Server 2015. Then you start a call with a public switched telephone network (PSTN) user. When you try to transfer the PSTN call to another user who is only Enterprise Voice (EV) enabled on a non-LBR enabled network site, the PSTN call can be transferred successfully. When the non-LBR user isn’t available, the call will be routed to his voicemail. The call transfer should be failed because the call is from an LBR enabled gateway. To fix this issue, install the January 2018 cumulative update 6.0.9319.514 for Skype for Business Server 2015, Front End Server and Edge Server.
KB 4056285 Precedence of Skype for Business Online user’s caller ID in cloud PBX with PSTN connectivity	In a Microsoft Skype for Business Server hybrid deployment with on-premises Public Switched Telephone Network (PSTN) connectivity, when a Microsoft Skype for Business Online user makes an outgoing PSTN call, the on-premises trunk translation rules take precedence over the user’s line URI in the following scenario in Skype for Business Server 2015: Calling number translation rules are defined in the on-premises trunk configuration. The CallerIDSubstitue of the Skype for Business Online user’s CallerIdPolicy is set to the user’s line URI. For all other scenarios, no overrides occur, and the caller ID would be defined by CallerIDSubstitue. To apply this update, install the January 2018 cumulative update 6.0.9319.514 for Skype for Business Server 2015, Front End Server and Edge Server.

FOUND THESE ADDITIONAL on	https://support.microsoft.com/en-us/help/3061064/updates-for-skype-for-business-server-2015
4056283 Can’t join a Skype meeting with Skype for Business on Mac	When a user tries to join a Skype meeting with Skype for Business on Mac by clicking the meeting link in Outlook, the Skype meeting can’t be joined. When Skype for Business on Mac tries to join a meeting, the client passes the meeting URL to Unified Communications Web API (UCWA). In some cases, there can be additional parameters in the URL that are not recognized by Skype for Business Server. Therefore, the meeting can’t be joined.
4056284 Skype for Business Web App can’t switch audio for a guest user in a meeting with CU5 applied	Consider the following scenario: You apply Skype for Business Server 2015 Cumulative Update 5 (CU5) to Microsoft Skype for Business Server 2015 and set the MeetingUxUseCdn to True. You create a Skype meeting and use Skype for Business Web App to join the meeting anonymously. You click the Switch audio to my phone button and then input your phone number. In this scenario, you can only hear the ringtone when picking up the call. Unified Communications Web API (UCWA) doesn’t work correctly for this scenario.
4056280 Support New-CsCallingLineIdentity in a Skype for Business Server 2015 hybrid environment	This update enables you to use the New-CsCallingLineIdentity cmdlet to create a new Caller ID policy in a hybrid environment of Microsoft Skype for Business Server 2015. You can either change or block the Caller ID (also known as a Calling Line ID) for a user. By default, the Skype for Business user’s phone number can be seen when the user makes a call to a PSTN phone, or when a call comes in. You can create a Caller ID policy to provide an alternative displayed number, or to block any number from being displayed.
4056286 Can’t join a Skype meeting after you run Reset-CsPoolRegistrarState in Skype for Business Server 2015	A user can’t join a Skype meeting after you run the following cmdlet in PowerShell in a Microsoft Skype for Business Server 2015 environment. `Reset-CsPoolRegistrarState -ResetType FullReset`
4056287 NullReferenceException occurs when you remove Skype for Business Server 2015	Assume that you try to remove Microsoft Skype for Business Server 2015 or run the bootstrapper.exe /scorch command in a Skype for Business Server 2015 environment. Then a NullReferenceException occurs and the uninstallation fails together with the following call stack: at Microsoft.Rtc.Management.Deployment.Roles.WebServices.ConfigIISAppWindowsAuth() server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Deployment.Roles.WebServices.LocalDeactivate(IService service, Fqdn fqdn, Boolean complete) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Internal.Utilities.LogWriter.InvokeAndLog[T1,T2,T3](Action`3 action, T1 arg1, T2 arg2, T3 arg3) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Common.Reporting.LogWriterImpl.InvokeAndLog[T1,T2,T3](Action`3 action, T1 arg1, T2 arg2, T3 arg3) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Deployment.Tasks.HostLocalDeactivateTask.Action() server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Internal.Utilities.LogWriter.InvokeAndLog(Action action) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Common.Reporting.LogWriterImpl.InvokeAndLog(Action action) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Deployment.DeactivateMachineCmdlet.InternalProcessRecord() server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Management.Deployment.DeploymentCmdlet.CmdletProcessRecord() server.vdomain.com(server.vdomain.com): — End of inner exception stack trace — server.vdomain.com(server.vdomain.com): at System.Management.Automation.Runspaces.PipelineBase.Invoke(IEnumerable input) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Internal.Tools.Deploy.Tools.PowerShellRunner.RunCmd(String script, Collection`1& errors) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Internal.Tools.Deploy.Tools.PowerShellRunner.RunCmd(String script) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Internal.Tools.Deploy.Tools.InPlaceDeploymentSteps.PrepareForUpgrade(Object param) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Internal.Tools.Deploy.ViewModels.DeploymentStepViewModel.Action(Object param) server.vdomain.com(server.vdomain.com): at Microsoft.Rtc.Internal.Tools.Deploy.Commands.RunDeploymentCommand.RunSteps(Object obj) SkypeServerUpdateInstaller.exe Error: 0 : server.vdomain.com(server.vdomain.com): System.Exception: Installation failed with code 10 Note This issue occurs after you apply December 2017 cumulative update 6.0.9319.510.
4074993 Delay or failure when you join an AVMCU meeting in Skype for Business Server 2015	Assume that the encryption for Skype for Business Server 2015 is disabled. When you try to join an Audio Video Multipoint Conferencing Unit (AVMCU) meeting, you may experience a delay or a failure. Removing a muted user with disabled encryption can introduce the delay or failure in the AVMCU.
4056278 Video can’t be added by UCMA during a back-to-back call that’s created from an AVMCU dial-out	Assume that you have a Unified Communications Managed API (UCMA) application that sends a dial-out request to the Audio Video Multipoint Conferencing Unit (AVMCU) in Microsoft Skype for Business Server 2015. Then the dial-out goes to a UCMA back-to-back (B2B) application, and is finally sent to a Skype for Business user. When you try to add a video to the dial-out conference, the video can’t be added by the B2B application. The escalation, which is from an audio to video conference, fails because the addEndpointMedia level achieves an incorrect state from MediaUASession.
4056288 Prerequisite (KB2982006) not satisfied when you try to install Skype for Business Server 2015	Assume that you run step 2 (Install or Update Skype for Business Server System > Setup or Remove Skype for Business Server Components) in Microsoft Skype for Business Server 2015 Deployment Wizard in Windows Server 2012 R2. You may find the Deployment Wizard can’t check the prerequisite of KB2982006. When this issue occurs, the installation of Skype for Business Server components fails, and you receive the following error message: Prerequisite not satisfied: Before you install Skype for Business Server 2015, you must Install an update for Windows Server 2012 R2. For details about the update, see Microsoft Knowledge Base article 2982006, "IIS crashes occasionally when a request is sent to a default document in Windows 8.1 or Windows Server 2012 R2" at http://go.microsoft.com/fwlink/?LinkId=519376." This issue occurs because the WMI query result of the prerequisite of KB2982006 isn’t reliable.