The Blackwire C620-M by Plantronics is a USB binaural headset that was optimized to work in conjunction with Microsoft Lync. With its inline volume controls and support for wideband audio, the C620-m is designed for comfortable pleasantly fitting all day use.
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The service that most owners look for is VoIP or voice over internet protocol. This service allows the user to make long distance calls using the standard internet connection
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