Regular phones only process 20% of frequencies found in our speech. High Definition (HD) Voice gives users twice the clarity of an ordinary phone, with life-like conversations. The phones that support HD have the best in-class system design, the best software components, and the best hardware design for maximum sound quality. The Patented Polycom Acoustic Clarity technology allows users to hear every word, limiting the need for repeating. HD Voice features echo cancellation and noise reduction technology with advanced voice processing.
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