Polycom SoundPoint IP 450. Display: LCD, Display resolution: 256 x 116 pixels. Voice codecs: G.722, G.729A, Frequency response: 150 - 7000 Hz. Supported network protocols: IETF, SIP, RFC 3261, RFCs, SNTP, FTP, TFTP, HTTP, HTTPS4. Power consumption (typical): 12 W. Dimensions (WxDxH): 215 x 165 x 150 mm, Weight: 1.1 kg