Yealink T43U SIP Phone | Features at a Glance User Interface Features • 3.7" screen with backlight Audio Features • Optima HD voice with Acoustic Shield and Smart Noise Filtering Basic Features • Up to 12 SIP accounts • PoE support • Stand with two adjustable angles, wall mountable Advanced Features • Wi-Fi via WF40/WF50, Bluetooth via BT41 • Support expansion modules • Support USB recording Connectivity • Dual USB ports, dual-port Gigabit Ethernet • Headset, EHS support MINIMO ORDER 5 UNITS