Polycom VVX 450 12-Line High-end Color IP Desktop Phone, Part#2200-48840-025

The Polycom? VVX? 450 business IP desk phone is a high quality, twelve-line, color, performance IP phone for businesses of all sizes. It is ideal for knowledge workers, executives and upper management. Product specifications User interface features? 4.3? color LCD (480x272 pixel resolution)? Voicemail support1? WebKit-based browser? Adjustable base height? Unicode UTF-8 character support? Two USB ports ( 2.0 compliant) for media and storage applications? Multilingual user interface including Chinese, Danish, Dutch, English (Canada/ US/UK), French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Slovenian, Spanish, and Swedish Audio features? Polycom? HD Voice? technology delivers lifelike voice quality for each audio pathhandset, the hands-free speakerphone, and the optional headset? Polycom? Acoustic Clarity? technology providing full-duplex conversations, acoustic echo cancellation and background noise suppression? TIA-920 Wideband Audio - Type 1 compliant (IEEE 1329 full duplex)? Frequency response? 150 Hz? 7 kHz for handset, optional headset and handsfree speakerphone modes?
Codecs: G. 711 (A-law and? -law), G. 729AB, G. 722 (HD Voice), G. 722.1 iLBC? Individual volume settings with visual feedback for each audio path? Voice activity detection? Comfort noise generation? DTMF tone generation (RFC 2833 and in-band)? Low-delay audio packet transmission? Adaptive jitter buffers? Packet loss concealment? OPUS support Power? Built-in auto sensing IEEE 802.3 af Power over Ethernet (Class 0) 13W (Max)? External Universal AC/DC Adapter (optional) 5VDC @ 3A (15W)? ENERGY STAR? rated