Poly (Plantronics + Polycom) Poly - VVX 450 Business IP Phone (Polycom) - 12-Line, Color IP Desk Phone with Handset - POE - 4.3' Color LCD Display

Audio Quality: Poly HD voice technology and Poly Acoustic fence technology deliver clear voice and reduce background noise and distractions.
The full duplex speakerphone features Acoustic Clarity Technology, offering an audio experience that closely resembles being in the same room.
Lines: 12 line keys support your lines as well as autodial or contact keys.
4 soft keys are context-sensitive, offering easy access to features like transfer, conference, and call park during a call.
Display: A large 4.3 backlit color display shows all your lines and essential information for enhanced productivity.
Connectivity: The VVX 450 includes 2 USB ports for connecting a headset, enabling Wi-Fi (with an optional Wi-Fi dongle), and for easily changing your screensaver.
2 high-speed 10/100/1000 Ethernet ports with an integrated switch provide a LAN connection for your phone and a passthrough connection to your PC.
Power over Ethernet (PoE) minimizes cable clutter on your desktop by removing the need for a separate power adapter.
Use With a Headset (Optional): Connect a suitable headset (sold separately) to match your work style.
RJ9 and Electronic Hook Switch are supported, or connect a USB-type headset for synchronized additional call, mute, and volume controls from the headset