---In-Call LED Red-Light Indicator : Located on the backside of the boom mic, this red light provides a visual alert to those behind you that you are on a call, preventing accidental disturbances during calls. With Microsoft Lync deployments ---Quick-Access In-line Controller : Control the call with answer/end, volume up/down and mute buttons. The volume-up button is strategically built higher than the others providing a point of reference for your fingers and allowing you to control the call without looking away from your work ---Optimized : For Microsoft Lync : Compatible with most leading UC platforms.
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