Choosing the software
Lync, Mobile, or Outlook Web App: Which is right for me?

Equipment
Using headsets, webcams, and specialized phones

Instant messaging
Starting an IM session

Presence
See instantly who's available

Audio and video calls
Making PC-to-PC calls and phone calls

Conference calls
Talk to many at once

Desktop and file sharing
Work on a document with a colleague or share files

Managing contacts
Creating contacts, creating groups, and changing the view

Advanced features