The Jabra Link 860 is an audio processor designed to enhance voice quality and call clarity for headset users. Connects to desk phones USB connectivity for Unified Communications calls Toggle between desk phone and softphone at the touch of a button Can also be used with a PC to listen to music or for VoIP applications Removes line hiss, buzz and other distracting noises from the phone network. Reduces background noise by only amplifying sounds over a certain level. Digital Signal Processing (DSP) technology digitally optimises your voice and music and suppresses echoes