Nortel IP Phone 1230. Networking features: Fast Ethernet, Supported network protocols: UNIStim. Security algorithms supported: 128-bit AES, SRTP. Weight: 0.86 kg, Dimensions (WxDxH): 198 x 190 x 205 mm. Package dimensions (WxDxH): 260 x 111 x 254 mm, Package weight: 1.32 kg. Operating temperature range (T-T): 5 - 40 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 5 - 95 %