Microsoft Skype for Business

Microsoft Skype for Business (Lync) enables users to communicate securely anywhere they have network connectivity.

Skype for Business unifies voice and video calls, Skype for Business Meetings, presence, and instant messaging (IM) in one easy-to-use client, making it simple to choose and switch between different forms of communication.

Clients are available for Windows, Mac, iOS, Android and Windows Phone.