3905 digital deskphone is designed to satisfy the specialized needs and enhance the productivity of the most demanding call center agents and supervisors. It features headset jacks for both agent and supervisor and provides instant access to the most-often-used call center features. Display-based user interface helps increase productivity by giving call center agents and supervisors access to more features with fewer keys. 3905 digital deskphone’s four-line by 24-character display largest in its class is bordered by eight programmable line/feature keys and four interactive soft keys providing access to the features you need when you need them. The navigation cluster conveniently guides you through on-screen menus and prompts, helping to provide an unparalleled level of customization and personalization. 3905 digital deskphone supports a variety of snap-in accessory cartridges, providing the flexibility to add new features and capabilities easily and cost effectively. For example, you can conveniently connect an analog device such as fax machine, PC, or laptop modem directly through the phone, eliminating the need for separate analog wires to the desktop.