AT&T 2375 2.4 Gigahertz Cordless Multi-Handset Phone with Integrated Answering Device and Caller ID/Call Waiting with 2 additional handsets (3 total) 2.4 GHz Digital Transmission, Digital Spread Spectrum Frequency Hopping Technology, Expands up to 4 Handsets, Cordless Handset Speakerphone, 50 Name/Number Directory, 2-Way Page and Intercom, Programmable Ringer, Conferencing, Call Transfer, Any Key Answer, On-Hook Dialing, Last 5 Number Redial, Mute, Headset Compatible (2.5 mm jack) Caller ID/Call Waiting Capability, 50 Name/Number Caller ID History, Lighted CID Display, Visual Message Waiting Indicator, Memory Match, Display Dial 15 Minutes of Digital Recording Time, 3 Individual Voice Mailboxes, Time/Day Stamp, Remote Access, Call Screening/Intercept, Voice Prompts, Memo, Announce Only 3 Cordless Handsets, 3 Charging Bases, Power Adapter, NiCd Battery, Telephone Line Cord, Users Manuals