2 high-speed 10/100/1000 Ethernet ports with an integrated switch allow LAN connection for your phone with a pass-through connection to your PC. PoE reduces cable clutter on your desktop, eliminating the need for a separate power adapter. Quality sound is standard on the Poly VVX 250 IP desk phone. Reduce distracting background noise at the source with Poly Acoustic Fence technology. Stay productive with 4-line keys supporting up to 34- line key appearances with pagination for autodials and contacts. A 2.8-inch backlight color display offers an engaging experience with all the information you need at a glance.