HP Poly Edge B20 Power over Ethernet IP Business PhoneSleek design meets quality audio at an affordable price. Easy to use illuminated keys, plug and play provisioning, and reliability make it pure value. Hear every nuance of your call. Poly HDvoice and PolyAcoustic Fence technologies give you business grade audio quality with reduced background noise. Simplicity right out of the box. No need to guess if you are on mute, speakerphone, or headset . These keys light up when selected. Instantly add co