Cisco Unified IP Phone 7941G. Voice codecs: G.711µ, G.729a, VoIP protocols: SCCP, Networking features: 10/100BASE-T Ethernet. Display resolution: 320 x 222 pixels, Display number of colours: Monochrome. Cabling technology: RJ45. Weight: 1600 g, Dimensions (WxDxH): 203.2 x 266.7 x 152.4 mm. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -10 - 60 °C, Operating relative humidity range: 10 - 95 %