PLENOM AMERICAS Kuando Busylight UC Omega - for Microsoft Lync/Skype for Business, Cisco Jabber & Various UC Platforms (Adhesive Mount) System requirements - Microsoft Lync 2010 or Microsoft Lync 2013; Windows XP SP3, Vista, Windows 7 or Windows 8; .NET 3.5 framework Light colors - Busylight supports the colors of Microsoft Lync and adds extra colors to complete the solution: Red: Busy; Pulsing red: Busy In a Call; Purple: Do Not Disturb; Yellow: Away; Green: Available Busylight Lync has 8 different ringtones. USB connection (no need for power supply)