Summarize this article in one sentence.
Tap “Meetings” on the bottom menu. Since Lync is closely integrated with Microsoft Outlook, it will automatically sync with the Outlook server and retrieve your schedules. Note that you can only view today’s schedule though, not yesterday’s and not tomorrow’s. Scroll up and down to see what’s going on today and which meetings are you invited to. If you want to join an active meeting, just tap “Join Meeting” and Lync will connect your phone to the meeting conference. You don’t even need to be near your PC desktop to attend a meeting.

Summary:
Go to Meetings. Scroll through your schedule. Join a meeting.