Vtech® DS6101 Two-Line Accessory Handset with Caller ID/Call WaitingTwo line operation allows you to dial and receive calls on two different phone lines with one phone. Know who's calling with caller ID call waiting. Handset displays the name, number, time and date of incoming calls. With the touch of a button, the handset speakerphones makes hands free conversations easy. Easily store and dial frequently called numbers. The entire keypad illuminates along with the LCD screen, allowing for easier viewing in dim light.