? Caller ID & Call Waiting;? Entry removal button;? Memory match ;? Voicemail-waiting indicator;? DSL compatible--requires splitters/filters;? Receiver/speakerphone/headset volume control;? Clearspeak(R) dial-in base speakerphone;? Flash;? Hold;? Mute;? Line status indication;? Programmable pause;? On-hook dialing;? Wall mountable;? 3-party conferencing;? Chain dialing;? Data port;? 18-number speed dial;? 100-name/number phone book;? 99-name/number Caller ID history;? Last 5 number redial;? Ringer volume control;? Eng/Sp voice prompts;? RoHS compliant;? Power failure option;