Fanvil X4U (V2) - 12 SIP line POE IP phone, with GIGABIT ports,with 30 DSS KEYS(With PSU) Main Screen : 320X240 2.8-inch Color Screen DSS key-mapping : 320X240 2.4-inch Color Screen The Color : Black Line Keys : 3 DSS Keys : 30 SIP Lines : 12 Audio Conference : 6-way Call Logs : 1000 Local Phonebook : 1000 IPv6 : Yes HD Audio : yes Wideband Codec :G.722, Opus Bluetooth : Via USB Dongle WiFi : Via WiFi dongle Network Rate : 2x 10/100/1000 Mbps Power Supply PoE : Yes EHS Headset support : yes Desktop Stand : 45° and 50° Wall Mountable : yes (Brackets not included)