Application services let you determine the ringing behavior for calls that are made to users in certain scenarios such as when a Click to Dial call is made, or while receiving group pages or when a parked call is recalled back to the user’s line.
From the customer view in https://admin.webex.com, go to Users and select the user that you want to edit.
Under Ring settings, choose the ringing behavior for the user's devices in these scenarios:
Under Webex application assignments, choose the available devices that are licensed with the Webex Calling application for the user.
Click Save to confirm your changes.