Dimensions 205x185x40mm (LxWxD) w/o foot stand 205x185x200/220 mm (LxWxD) with foot stand Display Four-line display, BW, 128 x 48 pixels Weight Phone 440g, Footstand 120g Color Black Power over Ethernet class ( PoE ) IEEE 802.3af, class 2 Freely programmable keys 5 freely programmable keys 4 variable function keys Call indication LED Message Waiting Indication LED Total amount of physical keys 51 Interfaces Network connection 2-port 10/100 Mbps Ethernet switch (RJ45) Wireless technologies - USB - Power supply PoE or 5V DC power adapter Headset support 4P4C connector support for Snom EHS Advanced Environmental Conditions Temperature Ambient: 0°C to 35°C (32°F to 95°F) Storage: -10°C to 45°C (14°F to 113°F) Humidity 5% to 95% (non-condensing) Homologation Type approval CE Safety IEC 60950