An intuitive user interface offers dedicated, one button access to common telephony features, and an information-rich graphical LCD display delivers content for messaging, call information, directory access, and applications.  Suitable for everyday users, the SoundPoint IP 501 offers superb voice quality when used with a headset, handset or in hands-free speakerphone mode.  Polycom industry-leading sound quality implemented in the SoundPoint IP 501 enhances the productivity of your business phone calls, because you will spend less time trying to understand what other people are saying, and more time communicating with them. End Of Life Product : new reference : Polycom IP 601.