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Yealink SIP T43U 12-Line HD Voice IP Desk Phone PoE 1301202
Yealink·MPN: 1301202

Yealink SIP T43U 12-Line HD Voice IP Desk Phone PoE 1301202

The Yealink SIP T43U is a purpose-built 12-line IP desk phone engineered for clear communications and extended functionality, supporting up to 12 VoIP accounts for diverse business needs.

  • 12-Line Capacity: Manages high call volumes efficiently, enabling staff to handle multiple client interactions without interruption.
  • HD Voice Technology: Delivers crystal-clear audio quality, ensuring every conversation is understood for improved communication accuracy.
  • Power over Ethernet (PoE): Simplifies deployment and reduces cabling complexity, lowering installation costs and providing flexible desk placement.
  • Gigabit Ethernet Ports: Ensures high-speed network connectivity for both the phone and a passthrough PC, maintaining data throughput.
$96.53
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Manufacturer Warranty Included

Product Overview

The Yealink SIP T43U is an enterprise-grade IP desk phone featuring 12 line keys and support for up to 12 VoIP accounts, designed to manage high call volumes in dynamic business settings. It includes a 3.7-inch black-and-white LCD with 360 x 160 pixel resolution, providing clear call information and easy navigation.

Equipped with Yealink Optima HD Voice technology and wideband Opus codec, this phone ensures superb audio quality for critical business conversations. Its dual Gigabit Ethernet ports and Power over Ethernet (PoE) support simplify network integration and power delivery, reducing cabling and installation complexity.

  • Enhanced Call Management: Supports 12 lines and 12 VoIP accounts, allowing employees to efficiently handle multiple calls and manage diverse communication channels.
  • Superior Audio Clarity: Features Optima HD Voice and Opus wideband codec, delivering crystal-clear sound for professional conversations and reduced listener fatigue.
  • Simplified Deployment: Integrates Power over Ethernet (PoE) for single-cable installation, minimizing wiring and enabling flexible desk placement without extra power adapters.
  • High-Speed Network Passthrough: Dual Gigabit Ethernet ports ensure the phone and a connected PC both receive optimal network performance, preventing bandwidth bottlenecks.
  • Future-Ready Expansion: Supports the EXP43 expansion module, allowing businesses to add more programmable keys and extend functionality as their operational needs evolve.

This Yealink IP desk phone is a reliable, scalable communication solution engineered to meet the demanding voice requirements of modern business operations.

Technical Specifications

1Performance & Business Impact
Lines Quantity12 lines
VoIP Accounts12
HD Voice TechnologyYealink Optima HD Voice, Opus
Ethernet LAN SpeedGigabit Ethernet
Phonebook Capacity1000 entries
2Connectivity & I/O
Ethernet LAN (RJ-45) Ports2
USB 2.0 Ports2
Bluetooth Version4.1
RJ-9 Ports2
Expansion Module SupportYes
3Physical & Environmental
Product ColourGrey
Width224.9 mm / 8.85 inches
Depth206.2 mm / 8.12 inches
Height174.9 mm / 6.89 inches
Operating Temperature (T-T)-10 - 50 °C / 14 - 122 °F
Operating Relative Humidity (H-H)10 - 95 %
Wall MountableYes
Typical Power Draw2.2 W
4Lifecycle, Warranty & Compliance
Warranty1-Year Limited Warranty
In-Box ContentsHandset, Ethernet cable, Quick start guide, Mounting kit
Compliance CertificatesREACH, RoHS
Power over Ethernet (PoE)Yes (IEEE 802.3af)

Full Specifications

Manufacturer Data
Display5
DisplayLCD
Display diagonal9.4 cm (3.7")
Display resolution360 x 160 pixels
TouchscreenNo
Backlight displayYes
Network11
Ethernet LANYes
Ethernet LAN interface typeGigabit Ethernet
Ethernet LAN data rates10,100,1000 Mbit/s
Wi-FiYes
BluetoothYes
Bluetooth version4.1
Supported network protocolsFTP/TFTP/HTTP/HTTPS, IPv6, LLDP/CDP/DHCP VLAN
Quality of Service (QoS) supportYes
DHCP clientYes
SyslogYes
Networking standardsIEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ports & interfaces5
USB 2.0 ports quantity2
Ethernet LAN (RJ-45) ports2
RJ-9 ports quantity2
Expansion module supportYes
DC-in jackYes
Power5
Power over Ethernet (PoE)Yes
AC adapter input voltage100 - 240 V
AC adapter output voltage5 V
AC adapter output current1.2 A
Power consumption (typical)2.2 W
Audio5
SpeakerphoneYes
Microphone muteYes
Voice codecsAGC, AJB, AMR-NB, AMR-WB, G.711Mu, G.711a, G.723.1, G.726, G.729ab, OPUS, PLC, VAD, iLBC
Comfort noise generation (CNG)Yes
Packet loss concealment (PLC)Yes
Performance2
Dual-Tone Multi-Frequency (DTMF) modesIn-band, Out-of band, SIP info
Hearing aid compatibilityYes
Weight & dimensions6
Width224.9 mm
Depth206.2 mm
Height174.9 mm
Package width246 mm
Package depth223 mm
Package height120 mm
Design5
Product typeIP Phone
Handset typeWired handset
Product colourGrey
Wall mountableYes
MountingDesk/Wall
Certificates2
Sustainability complianceYes
Compliance certificatesREACH, RoHS
Packaging content5
Mounting kitYes
Ethernet cableYes
HandsetYes
Quick start guideYes
Number of handles included1 pc(s)
Phone features1
Lines quantity12 lines
Management features1
Plug and PlayYes
Operational conditions1
Operating temperature (T-T)-10 - 50 °C
Logistics data1
Harmonized System (HS) code85171800
Downloads4
Product Datasheet368 KB
Download
Product Datasheet7.1 MB
Download
User Manual2.9 MB
Download
User Manual6.6 MB
Download

What This Solves

Efficient Call Handling for Busy Offices

In environments with high call volumes, employees often struggle to manage multiple incoming and outgoing calls simultaneously, leading to missed opportunities. The Yealink SIP T43U provides 12 line keys and supports 12 VoIP accounts, enabling staff to efficiently handle concurrent conversations and switch between calls with ease. This ensures no client interaction is missed and improves overall responsiveness for growing mid-market companies.

Growing mid-market companies, customer service centers, sales departments, administrative offices, legal practices

Streamlined Deployment in New Offices

Setting up new office locations or expanding existing ones often involves complex cabling for power and network connectivity, increasing installation time and costs. With Power over Ethernet (PoE) support, the SIP T43U receives both power and data through a single Ethernet cable, simplifying deployment. This reduces infrastructure complexity and accelerates setup for businesses expanding their footprint or upgrading their IT infrastructure.

Multi-site enterprises, new office build-outs, branch office deployments, facilities management teams

Ensuring Clear Voice Quality for Critical Communications

Poor audio quality during phone calls can lead to misunderstandings, repeated information, and reduced productivity, especially in client-facing roles. The Yealink SIP T43U features Optima HD Voice technology and the Opus wideband codec, delivering crystal-clear audio for every conversation. This guarantees that critical details are heard accurately, enhancing communication effectiveness for any organization that relies on clear voice interactions.

Financial trading companies, healthcare systems, legal firms, executive offices, remote teams requiring high-fidelity audio

Key Features

12 Line Keys and 12 VoIP Accounts

Enables employees to manage multiple calls and communication channels simultaneously, boosting productivity in high-volume environments.

Yealink Optima HD Voice Technology with Opus Codec

Delivers superior audio clarity, ensuring every conversation is understood without distortion for improved communication accuracy.

Power over Ethernet (PoE) Support

Simplifies installation by providing power and data through a single Ethernet cable, reducing cabling clutter and deployment costs.

Dual Gigabit Ethernet Ports

Ensures high-speed network connectivity for both the phone and a passthrough PC, maintaining optimal data throughput for connected devices.

EXP43 Expansion Module Support

Allows for flexible expansion of programmable keys and functionality, extending the phone's lifecycle and adapting to evolving business needs.

Industry Applications

Finance & Insurance

This phone provides reliable, high-quality voice communication essential for client interactions and internal collaboration in fast-paced financial and insurance environments.

Legal & Professional Services

Law firms and consulting practices benefit from the clear HD voice and multi-line support for managing client calls and internal team communications effectively.

Retail & Hospitality

Retail and hospitality businesses use this phone for front-desk operations, internal staff coordination, and customer service, ensuring consistent communication quality.

Healthcare & Life Sciences

Clinics and medical offices utilize this phone for appointment scheduling, patient communication, and internal staff coordination, requiring clear and dependable voice services.

Frequently Asked Questions

What kind of display does the Yealink SIP T43U have?

The Yealink SIP T43U features a 3.7-inch black-and-white LCD display with a resolution of 360 x 160 pixels. This screen provides clear visibility for call information, contacts, and menu navigation.

Can this phone be used with a wireless headset?

Yes, the Yealink SIP T43U includes integrated Bluetooth 4.1, allowing for seamless connection with compatible wireless Bluetooth headsets. It also has two USB 2.0 ports for connecting USB headsets or Wi-Fi dongles.

Does the SIP T43U support call recording?

While the phone itself does not have built-in recording, it supports call history and can integrate with IP PBX systems that offer call recording features. A USB flash drive can also be connected to one of the USB 2.0 ports for local call recording.

Is the Yealink SIP T43U wall-mountable?

Yes, the Yealink SIP T43U is designed for both desk and wall mounting. A mounting kit is included in the packaging, providing flexibility for deployment in various office layouts.

Warranty & Returns

Manufacturer Warranty

Manufacturer warranty applies. Contact Zent Networks for warranty terms specific to this product.

Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.

Return Policy

Returns subject to manufacturer approval

Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.

$96.53