The Aastra Meridian 9316CW call waiting telephone features a caller ID / call waiting display, which shows you who is calling even when the line is busy. The intelligent viewing system with “Superflash” lets you see and access a waiting call from any extension. The phone features speakerphone with mute, 50-name and number call log, 3-line backlit display for easy viewing, day or night and 8 programmable memory keys.