.. _device-models:

Device Models
----------------

:bdg-primary:`Cisco`



From the Overbuild's **Device Models** menu, you can view details about the devices, by model, in 
the selected hierarchy. Like the **Overview Tool**, this can be useful to indicate where 
devices have moved as a result of an overbuild. 

When choosing a device model type from this menu, the list view displays data about the devices of
that model type in the hierarchy, such as:

* Device names or identifiers 
* Their device pools
* Their hierarchies at and below the currently selected hierarchy 
* Data related specifically to the selected device model

In a device model you can select individual devices to modify, delete, and export them. You can also 
bulk change settings for all the devices in a device model by selecting the **Select All** checkbox 
at the top of the table in the list view, then choose **Action > Bulk Modify**.

.. caution::

   It is strongly recommended that you do NOT directly edit the device models via this menu. Instead, 
   use other menus in Automate, such as the Subscriber Day 2 menus. The **Device Models** menu items 
   should be used for manually moving device models that the **Overbuild Tool** can't move or 
   that need additional manual moves after **Run Overbuild** is executed.

For CUC models, two system users (``operator`` and ``undeliverablemessagesmailbox``) remain at the 
Customer level. All associated CUC device models for the two system users will remain at the 
Customer hierarchy and will show in the device model counts and device model lists at the Customer hierarchy.

For call handler device models, there are 5 default instances that remain at the Customer hierarchy:

* Goodbye (a CUC system default call handler)
* Opening Greeting (a CUC system default call handler)
* Operator (a CUC system default call handler)
* operator (the system user 'operator' call handler)
* ``undeliverablemessagesmailbox`` (the system user ``undeliverablemessagesmailbox`` call handler)

These 5 call handlers remain at the Customer hierarchy and appear in the device
model count and device model lists for call handlers at the Customer hierarchy.

These device models also allow you to add device instances. However, it is not recommended to add 
device instances in the **Overbuild** menu. 

* CUCM CtiRoutePoint
* CUCM DirectedCallPark
* CUCM Phone
* WebEx User