The following table summarizes the different setups that you may have and the web client that is used. Users who have user accounts on-premises (whether they have a vanity URL or not) or are managed by Microsoft will see the Lync experience in the Outlook web app. As long as the user's account is online and doesn't have a vanity URL, they will still see the experience even if their organization has some user accounts that are homed on-premises. This basic client is available for Online users whose admin hasn't configured a vanity URL for their Microsoft 365 and Office 365. Outlook on the web (Outlook Web App) in Microsoft 365 or Office 365 offers a basic Skype for Business web client from the navigation bar. Remember that a successful upgrade aligns technical and user readiness, so be sure to leverage our upgrade guidance as you navigate your journey to Teams. Do not disturb (red dot) - users can contact you via message. It is possible to set away status anytime you want. Away (yellow dot) - set when inactive for an hour or more. Status is often set after 3 minutes of inactivity. If you want to upgrade your organization to Teams yourself, we strongly recommend that you begin planning your upgrade path today. Recently active or Inactive (green dot with white dot in the middle) - set automatically when not active for a few minutes. If you haven't upgraded your Skype for Business Online users yet, they will be automatically scheduled for an assisted upgrade. Skype for Business Online was retired on July 31, 2021.

Skype for web status