I am having issues getting a Cisco 8831 setup. I have the "Cisco" display on the phone without any buttons. There should be an "app" button it doesn't get that far. There has to be something with a config file maybe? The phone auto-registers, but nothing happens on the display. I also see this in the web interface.
[10:37:22a, 09/28/15] CTL update failed
[10:37:23a, 09/28/15] SEPAC44F2141C1F.cnf.xml.sgn(HTTP)
[10:37:22a, 09/28/15] CTL update failed
[10:37:23a, 09/28/15] SEPAC44F2141C1F.cnf.xml.sgn(HTTP)