1. Open the Skype for Business app on your iPhone or iPad. The app can be downloaded from the App Store.
2. Press the arrow button to continue.
3. Press the OK button.
4. Enter your Hosted Lync username and password. The username will be in a email@example.com format. Press Sign In to continue.
5. Press Continue on the first redirect notification.
6. Press Continue on the second redirect notification.
7. Enter your phone number and press the arrow button to continue.
8. The Skype for Business app should now be connected and ready to work.