Yealink SIP-T42U

3.7" 360x160-pixel graphical LCD with backlight Dual USB ports Dual firmware images Opus codec support T42U (pending)/T43U/T46U/T48U Auto-P template unified T42U (pending)/T43U/T46U/T48U firmware unified Up to 12 SIP accounts PoE support USB headset and EHS support Wi-Fi via WF40/WF50 Bluetooth via BT40/BT41 Supports color-screen expansion modules Stand with 2 adjustable angles Wall mountable Expandable with YEA-EXP43 PSU (YEA-PS5V2000US) not included Does not support EHS36 and EXP40