Skype for Business, previously known as Lync 2013, is a mobile application that allows users to access the features of Lync and Skype on their Android devices. With this app, users can make voice and video calls over a wireless connection, engage in instant messaging, join conferences, and utilize other communication features. The interface is designed to be user-friendly and provides a seamless experience for users.

Some key features of Skype for Business include the ability to initiate group conversations and invite additional participants, join and initiate Skype for Business meetings, share and view videos during conferences, control meetings by muting or removing attendees, and easily access upcoming meetings. Users can also search for contacts by name, email, or phone number. The app offers enhanced security through the Active Directory Authentication Library (ADAL).

To use the Skype for Business Mobile app, users must have a Skype for Business or Lync account. While anyone can use the app when invited to a Skype for Business or Lync 2013 meeting, the full capabilities of the app can only be enjoyed with a valid account. Some functionality may require updates to Lync or Skype for Business Server, and certain features may not be available to all users. Users are advised to contact their IT department for clarification on their account status and any necessary updates.

It is important to note that the Skype for Business Mobile app requires connectivity to licensed copies of Microsoft Lync or Skype for Business Server, Office 365, Lync Online, or Skype for Business Online. Without these connections, the app will not function. Updates to Microsoft Lync Server or Skype for Business may be necessary for optimal performance. Additionally, certain functionality may not be available in all countries. Users who are unsure about their company's license or deployment of Lync or Skype for Business are advised to contact their IT department. The Skype for Business app is compatible with Android 4.0 or later versions.