
For best quality we recommend you use a high-speed broadband connection of 4Mbps down/512kbps up and a computer with a Core 2 Duo 1.8 GHz processor.

Perform a clean uninstall of Lync 2011.After that, restart Outlook and reinstall Skype.Double-check if the user account you are using is the same in Skype for Business and Outlook.If you have already checked all the requirements, but you still can’t integrate Outlook with Skype, here’s what you should do: The same user account should be logged into Skype for Business and Outlook.Mac Outlook version 15.28 or the most recent version.Before anything else, check if your device meets all the requirements for Skype and Outlook integration on Mac. But if you’ve switched to the Classic version of Skype, there is hope. If you are still running the latest Skype version, then there’s no definite fix for your Outlook integration problems.

As of this writing, the latest Skype version is still not compatible with macOS Mojave.
