Lync ethernet phones not showing up in Monitoring Server: Device Report

It appears that CX500 and CX600 devices do not get put into the Device Report from the Lync Monitoring Server role:

 Our list for the last 7 days has the following devices:

• Handset (Catalina)
• Headset Microphone (GN 9330)
• Headset Microphone (Jabra PRO 930)
• Headset Microphone (Jabra PRO 9450)
• Headset Microphone (Jabra UC VOICE 250 MS)
• Headset Microphone (Plantronics Blackwire C210 M)
• Headset Microphone (Plantronics C310-M)
• Headset Microphone (Plantronics C610-M)
• Microphone (Plantronics Blackwire C220)
• Microphone (Plantronics C310)
• Telephone (Plantronics P540-M)
• Telephone (Polycom CX300)
• Telephone (USB Audio Device)
• UCPhone

so guess that the POE Ethernet phones all get wrapped up in the "UCPhone" category.

(As a side note I'm going to assume that the "Telephone (USB Audio Device)" are the CX300 devices which are on our Apple Mac's)

Will investigate more and update when/if I have more information.