I loaded the latest firmware onto CUCM:(cmterm-9971.9-1-2.cop.sgn).  Verify that your Cisco 9971 IP Phone has the latest firmware load.  Active Load: sip9971.9-1-2Verify the following device settings:Cisco Camera* -> EnabledVideo Capabilities* -> Ena...

Just found this:http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/9971_9951_8961/firmware/9_1_2/release_notes/9900_8900_912.htmlThere is an issue (CSCtf09186) with some 802.3af switches, which results in the Cisco Unified IP Phone 9951 and 9971 un...

I'm having the same problem.   Recently upgraded to 8.5.1.10000-26.  Working with two 9971 SIP Phones with USB camera's.  All settings have been verified.  Enterprise Phone Configuration, Devices>Phone>Settings, Phone Settings, etc..  (Video Capabili...