Skype for Business is a unified communications tool that provides:

  • Instant messaging
  • Presence (a combination of your availability and willingness to communicate)
  • Voice calls (Skype to Skype)
  • Video calls (Skype to Skype)
  • Online meetings
  • File presentation (e.g., PowerPoint)
  • Whiteboard collaboration
  • Screen sharing, with optional sharing of control over mouse and keyboard