The moment you have completed the core setup of the app, out of the box you will be able to use certain critical fields like origDeviceName and destDeviceName and also orig_device_type and dest_device_type. As with many of the fields that are split between orig/dest, there are also fields deviceName and device_type that simply are multivalued and hold both values.
Some examples of device_types are: hardphone, jabber_desktop, jabber_iphone, jabber_tablet, unityvm
Some examples of device names: SEP32A06CFF0004, CSF-bobterwiliger
However if you or your colleagues have also set up the Devices Lookup, then a great deal of other fields will also be available across the app, effectively populated from CUCM itself. For example on the origination side you will get origProductName, origUserDepartment, origDevicePool, origUserEmail, origFullName and several more. Likewise the same fields will exist as appropriate on the destination side.
These fields can all be used as easily as if they were fields in the raw CDR, for filtering searches, and as primary and secondary fields in your reports. Furthermore you can mix and match these fields in individual reports and searches with not only other CDR and CMR fields but also with all the other non-CDR fields added on the fly, for instance with Location fields or the Groups and Extensions fields.
Also note that for high level examples of the sorts of things you can do with these fields, you might check out our overview page for Devices