• Corded feature phone Caller ID, call waiting caller ID • Visual call waiting 50# • Caller ID history and dialer Voicemail message waiting indication (envelope icon on LCD) • Requires 3 "AA" batteries (not included) •  AC power free operation • 3-Line LCD display with contrast adjustment • Trilingual LCD • Call timer • 20# Redial numbers • Pause/flash/mute • Handset volume control (4 step) • Ringer volume (high/low/off) • Tone/pulse switchable • One year manufacturer's warranty •