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IP phone Yealink SIP-T43U Gigabit, 12 SIP accounts, 2× USB, 3.7-inch L

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IP phone Yealink SIP-T43U Gigabit, 12 SIP accounts, 2× USB, 3.7-inch LCD, PoE

€217,34
€217,34
Yealink SIP-T43U For multiple SIP accounts For a network with PoE An IP phone for business users and teams managing multiple VoIP accounts. Support for...
Vendor: Yealink
Availability: In stock , 5 dni Out of stock

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IP phone Yealink SIP-T43U Gigabit, 12 SIP accounts, 2× USB, 3.7-inch LCD, PoE

Yealink SIP-T43U

For multiple SIP accounts For a network with PoE

An IP phone for business users and teams managing multiple VoIP accounts.

  • Support for 12 SIP accounts makes it easy to manage multiple phone accounts.
  • Power over PoE allows you to use a network cable for power if your network supports it.
  • The 3.7-inch display provides an overview of call information.
  • A Gigabit connection provides network connectivity.


Yealink SIP-T43U Business Gigabit IP Phone – Powerful tool with dual USB ports and 12 SIP accounts

The Yealink SIP-T43U Business IP Phone (SKU: SIP-T43U , EAN: 6938818306389 ) is a highly reliable and flexible communication solution for modern office environments. As part of the advanced T4U series, the device features an elegant design, high responsiveness, and the integration of two USB ports, allowing users to simultaneously use wireless Bluetooth or Wi-Fi adapters, USB headsets, or locally record calls to a USB drive.

The phone is equipped with a clear 3.7-inch backlit graphic LCD display (360 × 160 pixels) and supports up to 12 SIP accounts and up to 21 programmable DSS keys for quick access to features. Yealink Optima HD Voice technology combined with the wideband Opus codec and smart noise filtering enables crystal clear sound without interference. With built-in Gigabit network ports (10/100/1000 Mbps) and support for Power over Ethernet ( PoE ), setting up the phone at the workplace is quick and easy.

Main advantages

  • Dual USB Ports: Enable flexible expandability by connecting USB headphones, Wi-Fi/Bluetooth adapters, or USB storage for recording.
  • Superior Optima HD audio performance: Support for the Opus wideband codec and noise cancellation technology for natural sound.
  • Dual-port Gigabit Switch: Fast data streaming via two RJ45 10/100/1000 Mbps Ethernet ports with PoE support.
  • 3.7" LCD screen with backlight: Clear display of call information, phonebook and 21 programmable DSS keys on 3 pages.
  • Expansion module support: Compatible with Yealink EXP43 color expansion modules for more demanding workplaces and secretaries.
  • Adjustable stand: Adjustable desktop stand with two tilt angles and wall mounting option.

Technical specifications

  • Manufacturer / Brand: Yealink
  • Model / Designation: SIP-T43U (T4U Series)
  • Product code / SKU: SIP-T43U
  • EAN code: 6938818306389
  • Device type: Business Gigabit IP Phone
  • Display: 3.7" graphical black and white LCD with backlight (360 × 160 px)
  • Number of SIP accounts: Up to 12 SIP accounts
  • Audio features: Optima HD Voice, Full-Duplex with AEC, Smart Noise Filtering
  • Supported audio codecs: Opus, G.722, G.711(A/μ), G.723.1, G.729, G.729A, G.726, iLBC
  • Network ports: 2× RJ45 10/100/1000 Mbps Gigabit Ethernet (PoE IEEE 802.3af, Class 2)
  • USB interface: 2× USB 2.0 Type-A (for headphones, Wi-Fi/BT dongle, USB recording)
  • Other connectors: 1× RJ9 (4P4C) handset jack, 1× RJ9 (4P4C) headset jack
  • Expandability: Support for Yealink EXP43 module (up to 3 modules)
  • Directory and history: Local directory up to 1000 entries, XML/LDAP remote directory
  • Mounting: Tabletop stand (2 corners) or wall mount
  • Color: Black
  • Warranty: 24 months

Package contents

  • 1× IP phone Yealink SIP-T43U
  • 1× Telephone handset with connection cable
  • 1× Ethernet cable (CAT5e UTP, 1.5 m)
  • 1× Two-position desktop stand
  • User documentation and quick installation instructions


It is important to know

When choosing, first check compatibility with the VoIP provider or system you already use. Another important practical trade-off is whether you will take advantage of multiple account options and whether your network supports the selected power method.

  • The number of supported accounts does not in itself guarantee compatibility: check the support of a specific provider or VoIP environment before purchasing.
  • Multiple accounts are an advantage especially when you will actually use them; for basic home telephony, such capacity may be redundant.
  • PoE power is only convenient if there is a suitable PoE source available on the network. If you haven't checked this, clarify what kind of power supply you will need before purchasing.
  • The stability of your internet connection also affects call quality, so problems cannot be attributed solely to your phone.

Source of editorial recommendations: general verifiable guidelines for product selection.

In practice

🟢 Multiple SIP accounts in a business environment

Very suitable for users who need multiple registered accounts; check before using if their VoIP environment also supports it.

🟡 Basic home internet telephony

Suitable with limitations, as the multiple account options may go unused if you only need simple phone calls.

🟢 Workplace with PoE network

Very convenient when the network equipment supports PoE, as the phone can use the network connection for power.

Answers to frequently asked questions

Will the phone work with every VoIP provider?

This cannot be assumed. Before purchasing, check whether your provider or VoIP system supports this model.

Do I need a computer for everyday phone calls?

With IP phones, a computer is generally not required for everyday calls. The initial setup may depend on the provider and the VoIP environment used.

Will call quality depend solely on the phone?

No. The quality is also affected by the stability of the internet connection, so it makes sense to check the entire network environment.

Description updated: November 2026

Why buy from ENAA?

  • The descriptions on ENAA are designed neutrally and with clear summaries of benefits and functionality, leaving the decision to the buyer.