Yealink SIP-T43U IP Phone 12 Lines with PoE AdapterIntroductionThe SIP-T43U IP phone is a feature-rich business tool for excellent communications and extended functionality. Integrated with Hall Switch, T43U gives you a quieter operation and environment. It is a 12-line IP phone that comes with a 3.7-inch large black-and-white screen and the EXP43 support.Key Features 3.7 360160-pixel graphical LCD with backlight Dual USB ports Dual firmware images T4U Auto-P template unified T4U firmware unified Up to 12 SIP accounts PoE support USB headset and EHS support Wi-Fi via WF40/WF50 Bluetooth via BT40/BT41/BT52 Supports color-screen expansionmodules Stand with 2 adjustable angles Wall mountable Handset with hall switch