The Poly Edge B10 IP Desk Phone is a black IP phone from Polycom with 8 phone lines. It features Poly Acoustic Fence technology to cut out background noise, 5-way local audio conferencing, a 2.8" monochrome LCD screen, a Lightbar status indicator, and comes with a power adapter included. This unit also supports headset options with both RJ9 and 3.5mm headset ports, illuminated mute, headset, and speaker buttons. With RJ9, Ethernet, and 3.5mm headset port interfaces, this IP phone is perfect for enterprise networking and IP PBX systems.