Yealink SIP-T43U IP Phone

The Yealink SIP‑T43U is a powerful, business-grade desktop IP phone that combines rich functionality with a clean design. Boasting up to 12 SIP accounts, dual USB ports, and support for Bluetooth, Wi‑Fi, and USB headsets, it's built to adapt to a variety of work environments. The 3.7″ backlit graphical display, HD‑quality audio (including Opus wideband), and expandable DSS key modules make the T43U ideal for busy professionals needing flexibility, clarity, and scalable call management.

Key Features

• 12 SIP Accounts — Supports up to 12 lines/accounts for handling multiple calls. 

• 3.7″ Graphical Display — 360 × 160-pixel backlit LCD for clear menu navigation and information. 

• Dual USB Ports — Enables Bluetooth (via BT40/BT41), Wi‑Fi (via WF40/WF50), USB headsets, and USB call recording. 

• Expandable Keys — 8 line keys + up to 21 paperless DSS keys across 3 pages; supports up to 3 EXP43 modules (up to 180 buttons).

• HD Audio — Yealink Optima HD Voice + wideband Opus codec for crisp, clear voice quality. 

• Gigabit Ethernet + PoE — Dual-port Gigabit LAN and Power over Ethernet support for flexible deployment. 

• Enterprise Security — Supports SRTP, TLS, HTTPS provisioning, 802.1X, and more.

• Flexible Call Features — Includes hold, transfer, conference, redial, call park/pickup, visual voicemail.

• Ergonomic Design — Adjustable stand with 2 angles, plus wall-mountable option. 

• Durable & Responsive — Uses a Hall-switch handset for quieter operation. 

• Easy Provisioning & Management — Auto-provision via HTTP/HTTPS/TFTP, browser-based configuration, and support for Yealink’s device-management tools.