Features and Functions -  Volume Button -  Mute Button -  Clear Button -  Redial Button -  Power LED Light -  In Use LED Light -  Caller ID -  Soft Tone -  Access to Gatekeepers -  Online Update -  Silence Detection -  CNG (Comfort Noise Generation) -  Dynamic Voice Jitter Buffer -  Operates in Lock and Screen Saver Mode -  Optional dialing-tone and ring-tone -  Capable of calling regular phone, mobile phone and TalkPro phone