• 3.7″ 360×160-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 expansion
modules
• Stand with 2 adjustable angles
• Wall mountable
• Handset with hall switch

• Runs Android 9.0
• 7 inch (1024 x 600) capacitive adjustable touch screen
• Supports Yealink Bluetooth Handset BTH58
• 720p30 HD video
• Optimal HD audio, Yealink Noise Proof Technology
• Yealink’s SDK (Software Development Kit)
• DoorPhone Features (Preview, One-button Open, Monitoring)
• Built-in Bluetooth 4.2 and Dual Band 2.4G/5G Wi-Fi
• 2 x USB 2.0 ports for USB headset, media and storage applications
• Up to 16 SIP accounts
• Up to 3-party video conferencing
• Up to 10-party video/audio mixed conferencing (up to 2 video calls)
• Dual-port Gigabit Ethernet, supports PoE
• Wall mountable
• Supports up to 3 Expansion Module EXP50
• Supports Yealink/Unify Square Device Management Platform