Skype for Business makes it easy to connect and collaborate with coworkers and business partners around the world:
Start instant message conversations and voice or video calls.
See when your contacts are available online.
Schedule and join meetings.
Present your screen during meetings.
Skype For Business App Not Working
Download Skype apps and clients across mobile, tablet, and desktop and across Windows, Mac, iOS, and Android. Skype for Business on Mac is the all new client that provides modern communication and collaboration experiences for your Mac. Compatible with Office 365, Skype for Business Server 2015, and Lync Server 2013. Download Skype for Business on Mac here: Skype for Business on Mac – Microsoft Download Center (Curious note: Microsoft has a page up for Skype for Business apps: Download Skype for Business across all your devices.
Skype For Business App Configuration
If you're using Skype for Business on a PC, see the Skype for Business on Windows Quick Start.
Download and install
Set up Skype for Business Online - Choose this option is you are an admin and you want to set up the features of Skype for Business Online for your business. Deploy the Skype for Business client in Office 365 - Choose this option if you want to deploy Skype for Business in a large enterprise.
If don't already have Skype for Business installed, see:
Sign in to Skype for Business
Enter your work or school account.
Select Continue.
If your organization provides instructions, follow the prompts on the screen. Otherwise, enter your password.
Select the Keep me signed in check box if you'd like Skype for Business to save your information so you don't have to enter it each time you sign in.
Select Sign In.