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Yealink SIP-T43U IP Phone | New

Yealink SIP-T43U IP Phone | New

SKU: SIP-T43U-N
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Supports Webex Calling

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$159.00 $159.00
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Overview

Overview for Yealink SIP-T43U IP Phone | New

The Yealink SIP-T43U IP Phone is a robust, enterprise-grade VoIP solution designed for businesses looking for scalable, dependable and high-quality communications. With two Gigabit Ethernet connections for lightning-fast connectivity and a sharp 3.7-inch backlit display, this 12-line IP phone was designed with modern offices in mind. Even in busy settings, the T43U's crystal-clear audio is made possible with Yealink Optima HD Voice technology and sophisticated Acoustic Shield noise filtering, which makes every discussion professional and productive.

The T43U is unique since it has two USB ports, which allow for flexible expansion for call recording, Bluetooth, Wi-Fi and USB headsets. Sensitive communications are secured by its strong security suite, which includes secure boot and TLS 1.3 encryption. The T43U lowers operating expenses and simplifies IT management with its unified firmware, simple mass deployment and interoperability with top VoIP systems. For today's connected workplaces, the Yealink SIP-T43U provides the performance, flexibility and security needed for small company or enterprise communications upgrades.


Key Features of Yealink SIP-T43U IP Phone


3.7" 360x160-Pixel Graphical LCD with backlit display for intuitive navigation and clear call management.

12 SIP Accounts that handle multiple lines and calls with ease for busy professionals and teams.

Dual Gigabit Ethernet Ports ensure rapid, reliable network connectivity with PoE support.

Dual USB Ports that expand functionality with Bluetooth, Wi-Fi, USB headset or USB recording (any two simultaneously).

Yealink Optima HD Voice & Acoustic Shield with superior audio clarity and background noise reduction for distraction-free calls.

Expandable with EXP43 Modules that add up to three color expansion modules for advanced call handling.

Flexible Mounting Options with adjustable stand and wall-mountable design suit any workspace.

Unified Firmware & Zero Touch Provisioning that simplifies deployment, maintenance and upgrades across multiple devices.

Robust Security with TLS 1.3, SRTP, AES encryption, secure boot and advanced authentication protocols.

Headset & EHS Support with RJ9 and USB headset compatibility with Electronic Hook Switch (EHS) integration.

Power Options that supports PoE or optional AC adapter for versatile installation.


Benefits of Yealink SIP-T43U IP Phone


🗹 Manage up to 12 lines and leverage programmable keys for streamlined workflows and faster response times.

🗹 HD Voice and Acoustic Shield ensure every call is heard with lifelike clarity, even in open offices.

🗹 Dual USB ports enable seamless integration with wireless headsets, Wi-Fi, Bluetooth and call recording—adapting to evolving business needs.

🗹 Unified firmware, zero-touch provisioning and broad compatibility minimize setup time and reduce maintenance overhead.

🗹 Expansion module support and robust hardware make it easy to scale as your business expands.

🗹 Advanced encryption and secure boot protect sensitive business communications from threats.

🗹 Intuitive interface, backlit display and ergonomic design ensure comfort and ease of use for all employees.

🗹 Reliable performance, energy-efficient PoE and future-ready expansion lower total cost of ownership.

Specifications

Specifications for Yealink SIP-T43U IP Phone | New

ManufacturerYealink
Manufacturer Part NumberSIP-T43U
Product NameYealink SIP-T43U IP Phone
Product TypeIP Phone
Body Color
Classic gray
Call Services
Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold
Caller ID Type
Caller ID
Dialer Location
Base
Conference Call Capability
3-way
Speakerphone
Yes
Volume Control
Yes
Indicators
Visual ringer light, voice message waiting indicator
Additional Functions
Built-in clock, call recording, redial, mute, Music on hold, HD Voice, group call pickup, Do Not Disturb (DND)
Main Features
Multiple VoIP protocol support, integrated Ethernet switch
VoIP
Yes
VoIP Protocols
SIP, SIP v2
Voice Codecs
G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC, Opus
Lines Supported
12 lines
Quality of Service
IEEE 802.1Q (VLAN), IEEE 802.1p, Type of Service (ToS)
IP Address Assignment
DHCP, static, PPPoE
Security
IEEE 802.1X, TLS
Power Over Ethernet (PoE) Support
Yes
Network Protocols
IP, TCP, TFTP, UDP, HTTP, DNS, HTTPS, SRTP, TR-069, SNTP, STUN
Network Ports Qty
2 x Ethernet 10Base-T/100Base-TX/1000Base-T
Voice Features
Comfort noise generation (CNG), voice activity detection (VAD), HD Voice, acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), Yealink Optima HD voice technology
Network Features
Network Address Translation (NAT), Class 3 PoE, Lightweight Directory Access Protocol (LDAP)
Phone Directory Capacity
1000 names & numbers
Type
LCD display - monochrome
Display Location
Base
Diagonal Size
3.7"
Display Resolution
360 x 160 pixels
Backlit
Yes
Display Languages
Multilingual
Connections
Headset jack / RJ-9 ¦ Handset jack / RJ-9 ¦ 2 x USB
Hearing Aid Compatible
Yes
Placing / Mounting
Wall-mountable, table-top
Cables Included
Network cable - 6.6 ft
Included Accessories
Stand
Width
9.6 in
Depth
8.1 in
Height
6.9 in

User Guides

Frequently Asked Questions

Yealink SIP-T43U IP Phone
Frequently Asked Questions (FAQ's)



How many SIP accounts does the Yealink T43U support?
  • Up to 12 SIP accounts for managing multiple lines and calls.
  • What type of display does it have?
  • A 3.7-inch 360x160-pixel graphical LCD with backlight for easy navigation.
  • Does the T43U support expansion modules?
  • Yes, it supports up to three EXP43 color expansion modules for advanced call handling.
  • Is the audio quality suitable for noisy environments?
  • Yes, Yealink Optima HD Voice and Acoustic Shield technology deliver clear audio and reduce background noise.
  • Can I use Bluetooth or Wi-Fi with this phone?
  • Yes, via optional USB dongles (BT40/BT41 for Bluetooth, WF40/WF50 for Wi-Fi).
  • What headset options are available?
  • Supports RJ9 and USB headsets, plus Electronic Hook Switch (EHS) integration for wireless headsets.
  • Does the T43U support Power over Ethernet (PoE)?
  • Yes, it can be powered via PoE or with an optional AC adapter.
  • What security features are included?
  • TLS 1.3, SRTP, AES encryption, secure boot and advanced authentication protocols.
  • Is it easy to deploy in large organizations?
  • Yes, with unified firmware, zero-touch provisioning and broad compatibility for mass deployment.
  • Can I record calls directly from the phone?
  • Yes, USB recording is supported via the dual USB ports.
  • Is the phone wall-mountable?
  • Yes, it features an adjustable stand and is wall-mountable for flexible installation.
  • Does it work with all VoIP platforms?
  • Compatible with leading SIP-based platforms like 3CX, Broadsoft and more.
  • What is the power consumption?
  • Power consumption ranges from 0.9–2.2W (PSU) and 1.5–3.2W (PoE).
  • Can I use two USB devices at the same time?
  • Yes, you can use any two USB features simultaneously (e.g., headset and recording).
  • What is the handset compatibility?
  • The handset is Hearing Aid Compatible (HAC) for accessibility.
  • Does it support IPv6?
  • Yes, the T43U supports IPv6 networking.
  • Is remote management possible?
  • Yes, supports browser-based, auto-provision, and device management platforms.
  • What is the operating temperature range?
  • Operates between -10°C to 50°C (14°F to 122°F).
  • How do I configure VoIP accounts on the Yealink T43U?
  • Enter the phone's IP address into a browser to access its web interface, log in with the default credentials and proceed to the Account tab to configure VoIP account settings.
  • How do I update the firmware on the Yealink T43U?
  • Download the latest firmware from the Yealink website, then launch the phone's web interface, navigate to the Settings tab, select Upgrade and upload the firmware file.
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