Skype for Business
Microsoft Skype for Business gives you instant messaging (IM), audio and video calls, online meetings, availability (presence) information, and sharing capabilities all from one, easy-to-use program.
Professional online meetings built for business. Skype for Business is an instant messaging client used with Skype for Business Server or with Skype for Business Online. Skype for Business is enterprise software.
Note: This Skype for Business Basic MSI desktop client provides presence, instant messaging and conferencing features. If you are licensed for Office 365 ProPlus, Office 365 Enterprise E3 or Office 365 Enterprise E4, you are also licensed for the full Skype for Business Windows desktop client, which includes additional features including advanced telephony support, archiving & compliance features. Please download full Skype for Business Windows desktop client from the Office 365 Software portal following the steps in Install Skype for Business on your PC.