The Avaya 9504 Digital Handset Desk Telephone is a high-quality VoIP system designed for business use. With features such as amplified sound, talking caller ID, conference capabilities, and a headset jack, this phone offers a range of functionalities to enhance communication in the office. The sleek and modern design, along with its 12 lines of operation, make it a reliable and efficient choice for business phone systems. Ideal for businesses looking for a versatile and feature-rich telephone solution.