Clearline audio keeps incoming sounds at a consistent and comfortable listening level Echo management feature reduces echo often associated with VoIP telephony Utilizes the greater bandwidth offered by a wideband VoIP network to achieve clearer, more natural speech reducing repeats, errors, and listener fatigue* Clearline audio reduces the level of loud noise on incoming calls to a comfortable level The Quick Disconnect feature between amplifier and headset allows you move away from your phone without removing your headset or disconnecting the call Separate controls enable independent adjustment of incoming and outgoing volume Ergonomically designed volume, headset/handset and mute controls Ensures the most natural-sounding speech supported by the latest wideband developments and existing technologies Protect your investment: supports the latest wideband developments while retaining backwards compatibility with traditional phone systems