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Tag: Skype for Business

Enabling Skype for Business Client to use proxy server for SIP traffic instead of trying direct connection

The Microsoft Skype for Business Client first tries direct connection for the Session Initiation Protocol (SIP) traffic. After it gets time-out, the client will use a proxy proxy server, id exists. This could causes noticeable delays when you sign in the client, especially if the client tries to connect to Skype for Business Online.

Microsoft published some Updates and a UC Lobby Blog article about that. There is also a Support article about that.

In the UC Lobby Blog article contains a the following:

1
reg add HKCU\Software\Microsoft\UCCPlatform\Lync /v EnableDetectProxyForAllConnections /t REG_DWORD /d 1 /f
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Tool that bulk imports or removes User pictures

Simple Tool that bulk imports or removes user pictures, based on AD Group Membership.
If a user is in both groups, the picture will be removed!
Idea based on my old tool to import Active Directory pictures.
They are a bit to tiny, so I use Exchange now to make them look better in Exchange and Skype.

The tool will not check the pictures. As long as a picture exists, it will try to import it. Then the Exchange Server might reject the import, and you will get a warning. Same for users with non existing Mailboxes: The Tool will not check anything for the User before it tries to import the picture.

The Pictures should be in the JPG format and not larger than 648x648px. With a depth of 24 bits, each picture has around 200-250 kilobytes. Keep that in mind if you load a big bunch of pictures.

The following formats are used:

  • 48x48px – Active Directory thumbnailPhoto
  • 96x96px – Outlook, Outlook Web Access, Lync/Skype and SharePoint
  • 648x648px – Lync/Skype Clients and Lync/Skype Web App
This content is older than 2 years. It might be outdated.
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