This article describes steps on how to join Skype for Bussiness meetings if your company member invited you to the meeting. There are two possible scenarios:

If you have Skype for Business installed

To join the meeting to the following:

  1. Browse the URL in the web browser
  2. Follow the instructions and download the Skype for Business Web App plug-in
  3. Click on Join the meeting tab

  4. You will receive Windows Security prompt
  5. Enter your email address and password > Ok

If you do not have Skype for Business installed

To join the meeting to the following:

  1. Browse the URL in the web browser
  2. Follow the instructions and download the Skype for Business Web App plug-in
  3. Click on Join the meeting tab
  4. You will receive Windows Security prompt
  5. Cancel Windows Security prompt
  6. Select Sign in as a guest to the meeting button

  7. Enter your Guest name > click Join the meeting button

Important: if the admin did not enable Skype for Bussiness for your account, you would not be able to join the meeting as authenticated user. Once you enter your corporate email address and password, you will receive an error:

There was an error while signing in, Please try again.

This is expected behavior and it was reported by Microsoft. The users without Skype for Business account would need to use Sign in as a guest to the meeting option.