Technical Enablement Lab
There are two categories of phone models predominately sold today for UC 5xx. They are the traditional Cisco 79xx series phones and the SPA5xx Series (lower cost) phones.
Both these phones expose a web GUI, which can be accessed by typing in the Vice VLAN IP Address of the phone (visible from the phone itself or via ‘show ARP ‘ on the UC500).
Some Partners like to disable this access to prevent some users from watching other users phone habits and call history (SPA5xx exposes this in a very readable format).