Accessory Handset Only Requires a EL52103, EL52203, EL52253,EL52303, EL52353, EL52403,EL52503 to operate. Enjoy a speakerphone that can keep up with your calls. Increase participation by allowing both ends to speak and be heard at the same time for conversations that are more true to life. Extra large display for easy viewing Easy-to-read LCD on the cordless handset. High-contrast black text on a white background provides for an easy-to-read screen to view incoming Caller ID or review call history. The lighted keypad also allows for easy dialing in low-light conditions. Big Buttons Enlarged font and extra-large, backlit keys make the keypad easy to use. This feature is especially helpful for those who are visually impaired. Caller ID/call waiting 50 name and number caller ID history Handset displays the name, number, time and date of incoming calls. ECO mode power-conserving technology Power-conserving technology manages consumption for optimal battery performance. Features Quiet mode DECT 6.0 digital technology 50 name and number phonebook directory 9 number speed dial Voicemail waiting indicator2 Quick access key for voicemail box Last 10 number redial English/Spanish/French setup menu Wall-mount bracket included Mute Any key answer