Ultraelegant Gigabit IP Phone 4.3 480 x 272pixel color display with backlight Opus codec support Dual USB ports T4U AutoP template unified T4U firmware unified Up to 16 SIP accounts Dualport Gigabit Ethernet PoE support USB headset and EHS support WiFi via WF40/WF50 Bluetooth via BT40/BT41 USB recording Supports expansion modules Stand with two adjustable angles Wall mountablewithout PSU