The Avaya B159 Conference Phone is a Dual Mode conference phone, allowing you to switch between and combine analog, VoIP or mobile connections. Designed with the large conference room or board room in mind, the Avaya B159 is perfect for groups or 10 or more. Features Full Duplex SD Memory card for call recording Line Mode Selector; analog, VoIP, Mobile 50 Contact Phone Book Pick up range of 320 Sq. Feet Optional B100 Expansion Microphones
