The Jabra Link 230 extends the capability of your Jabra corded QD (Quick Disconnect) headset and enhances the audio at the same time. With the plug-and-play USB adapter, you can use your Jabra deskphone headset together with your softphone. The Digital Signal Processing (DSP) technology evens out the audio stream to ensure a clear sound on both ends of the call.With the plug-and-play USB adapter, you can use your Jabra deskphone headset together with your softphone.