.. _add_a_class_of_service:

Add a Class of Service
----------------------


1. As a customer administrator or higher, and choose **Subscriber Management > Class of Service**.
2. To add new CoS instance, click **Add**. If necessary, this will automatically
   direct the user to select a customer-hierarchy-level, if not already on it.
3. From the **CUCM** drop-down, choose the desired |Unified CM|.
4. Enter the Class of Service name in the **CoS Name** field.
5. From the **Device CSS** and **Line CSS** drop-downs, choose the desired
   CSS types to be associated to this CoS item.

   The value can also be a macro that evaluates to a valid CSS type which
   already exists on the selected |Unified CM|. Blank values are also allowed.

.. |VOSS-4-UC| replace:: VOSS-4-UC
.. |Unified CM| replace:: Unified CM