Yealink SIP-T43U IP SIP Phone

The Yealink SIP-T43U is a professional IP phone designed for business communication, offering reliable VoIP calling, flexible SIP account support, and convenient connectivity for office environments. Featuring a large graphical display, multiple line keys, dual USB ports, integrated Gigabit Ethernet, and support for expansion modules, the SIP-T43U is suitable for reception desks, offices, call centers, sales teams, customer service departments, and other business environments that require efficient and scalable IP telephony.

Product Features

12 SIP Accounts

The SIP-T43U supports up to 12 SIP accounts, allowing users to manage multiple VoIP lines or extensions from a single handset.

8 Line Keys

The phone provides 8 physical line keys with LED indicators, making it easy to manage multiple calls, monitor lines, and access frequently used functions.

3.7-Inch Graphical LCD Display

The 3.7-inch 360 x 160-pixel graphical LCD provides clear visibility of caller information, menus, contacts, call status, and configuration options.

Dual Gigabit Ethernet Ports

Two integrated Gigabit Ethernet ports provide high-speed network connectivity while allowing the phone to share a network connection with a connected computer, helping reduce cabling requirements at the workstation.

Dual USB Ports

The two USB ports support compatible accessories and expansion options, including USB headsets and other supported Yealink devices.

HD Voice

HD audio technology helps deliver clear voice communication, making conversations easier to understand in professional office and business environments.

Full-Duplex Hands-Free Speakerphone

The built-in full-duplex speakerphone allows users to conduct hands-free conversations while maintaining two-way audio communication.

EHS Headset Support

The SIP-T43U supports electronic hook switch functionality with compatible wireless headsets, allowing users to answer and end calls remotely from supported headset systems.

PoE Support

Power over Ethernet allows the phone to receive both network connectivity and electrical power through a compatible Ethernet cable, reducing the need for a separate power adapter in supported installations.

Expansion Module Support

The phone supports compatible Yealink expansion modules, allowing businesses to add additional programmable keys for monitoring extensions, speed dialing, call handling, and other functions.

Advanced Call Management

The SIP-T43U supports features such as call transfer, call forwarding, call waiting, hold, mute, redial, three-way conferencing, voicemail access, and speed dialing.

Product Specifications

• Brand: Yealink
• Model: SIP-T43U
• Product Type: IP SIP Phone
• Phone Technology: VoIP / SIP
• SIP Accounts: Up to 12
• Line Keys: 8
• Display: 3.7-inch graphical LCD
• Display Resolution: 360 x 160 pixels
• Ethernet Ports: 2 x Gigabit Ethernet
• PoE: Supported
• USB Ports: 2 x USB 2.0
• Audio: HD voice
• Speakerphone: Full-duplex hands-free speakerphone
• Headset Support: Wired headset and compatible EHS wireless headset support
• Expansion Support: Compatible Yealink expansion modules
• Call Features: Call hold, call transfer, call forwarding, call waiting, mute, redial, speed dialing, voicemail, and conferencing
• Network Connectivity: Gigabit Ethernet
• Power: PoE or compatible external power supply
• Installation: Desktop
• Application: Offices, reception desks, call centers, customer service departments, hotels, and business environments
• Primary Use: Business VoIP communication and SIP-based telephone systems

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