Yealink SIP-T43U IP Phone – 12-Line Professional Business VoIP Phone

The Yealink SIP-T43U IP Phone is a feature-rich VoIP desk phone built for professionals who need reliable communication, scalability, and ease of management. Supporting up to 12 SIP accounts, it is ideal for receptionists, administrators, and call center agents.

Equipped with an integrated Hall Switch, the handset delivers silent on/off-hook operation, improving user comfort and extending device lifespan. The 3.7-inch black-and-white LCD screen provides clear visibility of calls, contacts, and menus.

With dual USB ports, the T43U supports USB headsets, Bluetooth adapters (BT40/BT41/BT52), and Wi-Fi adapters (WF40/WF50), giving businesses flexibility without extra cabling. PoE support simplifies installation, while compatibility with the EXP43 color-screen expansion module allows users to manage more contacts and calls efficiently.

The phone runs on Yealink’s unified T4U firmware, enabling easier deployment, faster updates, and centralized management across large VoIP installations.

Key Features

• 12 SIP Accounts – Efficient multi-line call handling

• 3.7” 360×160 Graphical LCD – Clear and easy navigation

• Hall Switch Handset – Silent operation & longer durability

• Dual USB Ports – Headset, Bluetooth & Wi-Fi support

• PoE Support – Reduced cabling and clean installation

• EXP43 Expansion Support – Enhanced productivity

• Unified T4U Firmware – Simplified provisioning & management

• Wall-Mountable & Adjustable Stand – Flexible deployment

Technical Specifications

Use Cases

• Office desk phones

• Reception & front desk operations

• Call centers & customer service desks

• IP PBX & VoIP systems

• Hotels & enterprise environments

• VoIP Phones

• Yealink IP Phones

• IP PBX Systems

• Headsets & VoIP Accessories

• 🔗 Yealink SIP-T43U Official Product Page🔗 Yealink EXP43 Expansion Module