AT T Model ML17929 2 Line Corded Speakerphone W/Caller ID Display - Black. Comes with Power Supply and Phone Line Cord. Suitable for desk or wall mount. Condition is Used. In Very Good condition. Came from a working environment. Tested for full functionality. Small scratch on display window. Shipped USPS Parcel Select Ground or Priority Mail. Same day handling. 30 day domestic returns. PRODUCT DESCRIPTION The AT T ML17929 is a speakerphone designed for small to medium-sized businesses or home offices. It features a digital answering system with a mailbox for each line, so users can easily receive and manage calls. The speakerphone has two lines with a call waiting feature, which allows users to manage calls from two different phone lines at the same time. It also includes a speakerphone with volume control and mute function, making it easy to conduct hands-free conversations. Additionally, the ML17929 has a large, easy-to-read display with adjustable contrast and a backlit keypad, making it user-friendly in various lighting conditions. It is compatible with both analog and digital phone lines, making it a versatile option for businesses with different phone systems.