Yealink Phones - T43U 12-Line Gigabit IP Phone with Dual USB, PoE

The Yealink SIP-T43U is a powerful yet cost-effective business IP phone designed for busy offices, reception desks, and growing organisations. With support for up to 12 SIP accounts, Gigabit Ethernet, and dual USB ports, it delivers flexibility, scalability, and crystal-clear audio without unnecessary complexity.

Its 3.7-inch backlit LCD display provides a clean, intuitive interface, while 21 programmable DSS keys (via a 3-page view) allow fast access to extensions, speed dials, and call features. The T43U also supports up to three expansion modules, making it ideal for receptionists or call-heavy environments.

Powered by Yealink Optima HD Voice with Opus codec support, calls remain clear even on congested networks. Dual USB ports unlock modern connectivity - add Bluetooth, Wi-Fi, USB headsets, or call recording, all without cluttering your desk. With PoE support, dual firmware images, and enterprise-grade security, the T43U is built for reliability, easy provisioning, and long-term deployment.

Features

• Supports up to 12 SIP / VoIP accounts
• 3.7" 360 × 160 backlit graphical LCD for clear visibility
• Optima HD Voice with Smart Noise Filtering & Acoustic Shield
• Dual USB ports for Bluetooth, Wi-Fi, USB headset & recording
• Dual-port Gigabit Ethernet with PoE (IEEE 802.3af)
• 21 programmable DSS keys (3-page view)
• Supports up to 3 expansion modules (EXP43)
• Bluetooth & Wi-Fi ready via optional USB dongles
• Dual firmware images for safer upgrades and recovery
• Wall-mountable with adjustable desk stand
• Broad compatibility with major IP-PBX platforms (3CX, BroadSoft, etc.)

Specifications

Display

• 3.7" graphical LCD
• Resolution: 360 × 160 pixels
• Backlit, monochrome

Audio

• HD handset & speakerphone
• Hearing Aid Compatible (HAC) handset
• Wideband codecs: Opus, G.722
• Narrowband codecs: G.711(A/ ), G.729AB, G.726, iLBC
• Full-duplex speakerphone with AEC
• Smart Noise Filtering & Acoustic Shield

Call Handling

• 12 VoIP accounts
• 3-way conference calling
• Call hold, transfer, forward, waiting
• BLF, BLA, hot-desking, voicemail
• Local phonebook: up to 1000 entries

Connectivity

• Dual-port Gigabit Ethernet (10/100/1000 Mbps)
• Power over Ethernet (IEEE 802.3af, Class 2)
• 2 × USB 2.0 ports
• RJ9 handset port
• RJ9 headset port
• EHS support

Wireless (via USB dongles)

• Wi-Fi: WF40 / WF50
• Bluetooth: BT40 / BT41 / BT52

Physical

• Colour: Classic Grey
• Adjustable stand (2 angles)
• Wall-mountable
• Dimensions: 224.9 × 206.2 × 174.9 × 52 mm
• Operating temperature: 0-40 C

Power

• PoE consumption: 1.5-3.2 W
• PSU consumption: 0.9-2.2 W

What's in the box
1 x Yealink T43U 12-Line Gigabit IP Phone