Handset is designed for use with the RCA DECT 6.0 Corded/Cordless Two-Line Phone System. Digital answering system includes memo recording and message play. Handset features Call Waiting/Caller ID with 99 name/number log, speakerphone, 99 name/numberdirectory, "Do Not Disturb" settings with variable length, privacy setting with line lockout, redial with three-number memory, trilingual display, headset jack, and digital volume control. Handset is hearing aid compatible. Set up the handset on your desk or mount to wall.