• 4.3" 480 x 272-pixel color display with backlight • Opus codec support • Dual USB ports • Dual firmware images • T4U Auto-P template unified • T4U firmware unified • Up to 16 SIP accounts • Dual-port Gigabit Ethernet • PoE support • USB headset and EHS support • Wi-Fi via WF40/WF50 • Bluetooth via BT40/BT41 • USB recording • Supports color-screen expansion modules • Stand with two adjustable angles • Wall mountable