You can delete a department from the existing list of departments, singly, or all departments at one time.
To delete a department from the department list:
In the navigation tree, click Auto-Attendant. The Auto-Attendant menu items appear.
Click Departments. The Departments list appears.
Select a department or departments from the list and click Delete. A confirmation dialog for the deletion appears.
Click OK to confirm the deletion. The department is deleted from the list.