I've been searching and searching for ages now, on how to integrate Skype For Business online with an on-premises Exchange 2010. More specifically I want to be able to see free/busy (availability) in Outlook, based on the status of their SFB status. The setup is quite simple: All mailboxes are on the on-premises Exchange 2010 - no hybrid setup nothing is being synched to O365. The Skype For Business is purely online.
I've found plenty of articles stating that it's supported and some who've reported that they've configured it, but absolutely nothing on how to actually do it. Does anyone know how to actually do this? Because MS doesn't seem to know either.
If you have the SfB client installed as well as Office installed from your O365 subscription then you don't need to "do" anything to make this work. We have the exact scenario as you. If you're running Outlook and Skype then you'll see user's Skype status in Outlook. Note that Skype Status (Available, In A Meeting) isn't the same thing as Exchange Free/Busy information in the Outlook calendar.
Skype running:
Skype not running: