Cisco Business Class VOIP Phone CP-8861-K9= IP, Requires Cisco Communications Manager 5-inch Widescreen VGA Color Display (800x480) Built-in Gigabit Ethernet switch for network and your PC Supports campuses with 802.11a/b/g/n/ac WLAN enabled Optional Wall Mount and AC Power Source Sold Separately POE (power over ethernet) Requires User License with Cisco Communications Manager