Screen : 396 x 162 pixel (3.5 in. / 89 mm) Lines : 16 Networking : 10/100 Ethernet Switch Voice Codecs : G.711a/?, G.722, G.729a, iLBC Network Features : N/A Signaling protocol support : Session Initiation Protocol (SIP) Power Supply : Supports IEEE 802.3af PoE (Class 3). 48VDC is required; it can be supplied locally at the desktop using an optional AC-to-DC power supply (part number CP-PWR-CUBE-3=) or power injector (CP-PWR-INJ=). Dimensions : 207 x 265 x 28mm Weight : 1.5 kg