USER GUIDEPlantronicsBlackwire™ C610 Blackwire C620
Blackwire C620REGISTER YOUR PRODUCT ONLINEVisit www.plantronics.com/productregistration to register your product online so we can provide you with th
INSTALLING PERSONO® SUITE SOFTWAREPlantronics PerSono Suite software provides the link between your headset and the softphone application on your comp
Front Back3. Adjust the Mouthpiece3.1 Hold the receiver securely against your ear with one hand. With your other hand, adjust the clickstop turret
Problem SolutionI cannot hear caller.• The USB adapter is not set as the default audio device. Use the Audio settings in Windows under Sounds and Audi
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