On my calendar I have a couple of appointments, but my status on Outlook still says "available" and "free for the next 8 hours". This is the case even though "Update my presence based on my calendar information" is checkmarked in Lync settings.
Also, you didn't specify whether you are using the MS Office version of Outlook or the web application. If it is the web application, this may be relevant: Link Removed
Also, you didn't specify whether you are using the MS Office version of Outlook or the web application. If it is the web application, this may be relevant: Link Removed