Avaya Calling for Microsoft Teams application supports SSO with Open Authorization (OAuth).

To configure the Avaya Calling for Microsoft Teams application to use OAuth for the Avaya Aura® Device Services configuration service, you must append the configuration URL with the preferredAuth property. This property directs the Avaya Aura® Device Services configuration service not to provide the user name and password authentication.

The preferredAuth property directs Avaya Aura® Device Services to return a single authorization mechanism. Also, bearer indicates that OAuth is supported.