Yealink T43U IP Phone | 12 Lines | Dual Gigabit | PoE – SIP-T43U
12-line IP phone · 3.7" display · Dual USB · Gigabit PoE
Certified Women-Owned
- 3.7" Backlit LCD · 3-Page View
- 12 SIP Accounts · 8 Line Keys
- Optima HD Voice · Acoustic Shield
- Dual USB · Flexible Expansion
- Gigabit PoE · Dual Ethernet
- EXP43 Expansion Support
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View Requirements
12-line IP phone · 3.7" display · Dual USB · Gigabit PoE
Certified Women-Owned
- 3.7" Backlit LCD · 3-Page View
- 12 SIP Accounts · 8 Line Keys
- Optima HD Voice · Acoustic Shield
- Dual USB · Flexible Expansion
- Gigabit PoE · Dual Ethernet
- EXP43 Expansion Support
Will this work for me?
View RequirementsProduct Overview
Supporting up to 12 SIP accounts with 8 programmable line keys across 3 pages (21 paperless DSS keys total), the T43U efficiently handles high call volumes. Dual USB 2.0 ports enable Bluetooth and Wi-Fi connectivity via optional dongles, USB headset support, and USB call recording. Yealink Optima HD Voice technology with Acoustic Shield delivers crystal-clear audio quality through the full-duplex speakerphone, HAC-compatible handset, or connected headset.
Dual Gigabit Ethernet ports with PoE support provide fast network connectivity and single-cable deployment. The T43U supports the EXP43 color-screen expansion module for additional programmable keys, making it ideal for receptionists and power users. Integrated Hall Switch technology ensures quieter operation, while TLS 1.3 encryption protects your communications.
Large graphical display with backlight provides clear call information and easy navigation. Three-page view enables access to 21 programmable DSS keys without physical expansion.
- • 3.7-inch 360x160-pixel graphical LCD
- • Backlit display with power saving
- • 21 paperless DSS keys (3 pages)
Handle multiple extensions and high call volumes efficiently. Program line keys for speed dial, BLF monitoring, or direct station selection with dual-color LED status indicators.
- • Up to 12 SIP accounts
- • 8 programmable line keys with LED
- • 5-way conference calling
Crystal-clear conversations through handset, headset, or full-duplex speakerphone. Acoustic Shield isolates your voice and eliminates background distractions in open offices.
- • Wideband codecs: Opus, G.722
- • Full-duplex speakerphone with AEC
- • HAC-compatible handset
Two USB 2.0 ports enable versatile connectivity options including Bluetooth dongles, Wi-Fi adapters, USB headsets, and call recording to USB flash drives.
- • Dual USB 2.0 ports
- • Wi-Fi via WF40/WF50 dongle
- • Bluetooth via BT40/BT41/BT52 dongle
Power and connect over a single cable for clean desk deployment. Gigabit passthrough keeps your PC connected without requiring a separate network switch.
- • Dual 10/100/1000 Gigabit Ethernet
- • IEEE 802.3af PoE support
- • PC passthrough port
Add the optional EXP43 color-screen expansion module for up to 60 additional programmable keys with dual-color LEDs, ideal for receptionists and power users.
- • Supports EXP43 expansion module
- • 4.3-inch color LCD expansion
- • Up to 60 additional keys
Who Should Use This Product?
Knowledge Workers
Ideal for professionals managing moderate-to-high call volumes who need multiple line appearances and HD audio quality for clear communications
Administrative Staff
Perfect for receptionists and assistants who benefit from 21 programmable DSS keys and optional expansion module support for BLF monitoring
Open Office Environments
Excellent for open-plan workspaces where Acoustic Shield technology isolates voice and eliminates background distractions
Why Choose This Product
IT administrators benefit from Yealink's Device Management Platform for centralized provisioning, zero-touch deployment via RPS, and unified T4U series firmware that simplifies fleet management. Dual Gigabit Ethernet with PoE support enables single-cable deployment, while dual firmware images provide enterprise-level protection during updates. The phone's broad SIP compatibility ensures seamless integration with 3CX, Asterisk, BroadSoft, and most major platforms.
Will This Work for Me?
Works With
- • Yealink Device Management Platform
- • 3CX, Asterisk, FreePBX, BroadSoft, Metaswitch, RingCentral, most SIP platforms
Requirements
- • PoE switch (802.3af) or Yealink 5V/1.2A power adapter (optional, sold separately)
- • Ethernet network connection
- • SIP account credentials from PBX administrator
Software
- • Yealink Device Management Platform (optional for enterprise provisioning and zero-touch deployment)
Note
Wi-Fi and Bluetooth require optional USB dongles (WF40/WF50 for Wi-Fi, BT40/BT41/BT52 for Bluetooth). Power adapter not included; use PoE or purchase separately. Wall mount bracket optional.
What's in the Box
- Yealink T43U IP Phone
- Handset
- Handset cord
- Ethernet cable (2m CAT5E UTP)
- Phone stand
- Quick start guide