If Microsoft Teams is one of your providers, then it's your default unless changed. However, if a customer uses both Microsoft Teams and a partner provider (or uses multiple partner providers), the customer will be able to select their preferred online meeting provider. If a customer uses a single online meeting provider, like Microsoft Teams or a partner's Office Add-in, then Outlook automatically sets it as the default provider. If a user has both Microsoft Teams and Skype for Business, their preferred provider will depend on the selected co-existence mode, and the user will not see an option to choose between Teams and Skype. Choose your default online meeting provider Note that the user setting - configured from Outlook or via PowerShell - will be preferred over the organization default setting. To configure for the organization, admins should use the OnlineMeetingsByDefaultEnabled parameter from the Set-OrganizationConfig cmdlet. To configure for a given user, admins should use the OnlineMeetingsByDefaultEnabled parameter from the Set-MailboxCalendarConfiguration cmdlet. IT Admins can also programmatically configure the setting for specific users or for their entire organization. Look for the setting in the Options menu for your specific application.
You can find the setting to make all meetings online in all Outlook applications: Outlook for Windows, Outlook for Mac, Outlook on the web, Outlook for Android, and Outlook for iOS.
However, if you wish to change the setting, you can do so in one of the following ways. The setting is enabled by default if you have a Teams license. Note: This applies to Microsoft 365 accounts only. Simply enable the Add online meeting to all meetings option to get started. Whether you're working from home or meeting with people in other locations, Outlook can help you ensure every meeting is online.