Call as Delegate

Additional permissions are required to enable call as delegate. See Permissions

Calls can be made on behalf of another user by selecting the avatar | select a call as delegate option from the drop down. The call as menu option will only appear if the user is a delegate of another user in Teams and is given the ability make calls. Once the setting has been changed, initiate a call as normal.

By default, the call as delegate setting remains active until manually changed. However, if preferred, it can automatically switch back to calling as the signed-in user after one call. To enable this feature, navigate to settings | Advanced | enable Reset Selected Delegate to Myself after 1 Call.

There is also the ability to create a quick access shortcut to change the call as delegate setting. See Quick Access Shortcuts