Lync is a Microsoft Messenger client with which you can hold conversations and video conferences with multiple subscribers, it creates a great tool for virtual meetings.
Through this program you can set up your contacts on groups and easily add them to video calls and conferences. Conversations can also be organized on tabs to keep things organized.
Interface is not very different from other messenger programs like Easy, Skype or Messenger. In fact, you can also tell your Skype contacts via Lync because both applications are included in Microsoft.
In addition, it integrates perfectly with other office programs.