A Well-Rounded SIP Phone for Clear Communications

The SIP-T43U IP phone is a feature-rich business tool for excellent communications and extended functionality. It is a 12-line IP phone that comes with a 3.7-inch large black-and-white screen and the EXP43 support. United Yealink Optima HD Voice technology and wideband codec of Opus, the T43U awards you the superb audio quality and crystal-clear voice communications. The phone feels quicker and more responsive when performing call features. Moreover, the T43U puts dual USB ports in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according to your needs. The Yealink new T4U series offers the same elegant appearance as the T4 line, but with improvements for greater interoperability and better collaboration.

Key Features and BenefitsEasy Customization and High Expansibility

Accompanied by two USB ports, the T43U is your right-hand man in the office that makes Bluetooth, Wi-Fi, USB headset and USB recording possible, and you can use any two of them freely according to your needs to enrich phone features. Meanwhile, the phone not only has three pages of flexible buttons that can be easily programmed with 21 paperless DSS keys at most, but also can connect up to three expansion modules, for up to 180 additional buttons with a screen-based LCD display and LED system.

HD Audio

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. Being a totally open, highly versatile audio codec, Opus, is designed to perform a higher HD audio quality than other wideband codecs in a high network bandwidth; However, if your current network quality is poor, Opus can provide you with a better audio quality than other narrowband codecs. And its hearing aid compatible (HAC) handset helps the person who is with hearing loss to hear the voice more clearly.

Efficient Installation and Provisioning

Yealink T4U series supports efficient provisioning and effortless mass deployment with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism to help you realize the Zero Touch Provisioning without any complex manual settings, which makes the T4U series simple to deploy, easy to maintain and upgrade. Furthermore, a unified firmware and auto-p template that applies to all T42U (pending)/T43U/T46U/T48U phone models, saves even more time and costs for businesses, as well as simplifies the management and maintenance.Secure Transport and InteroperabilityYealink T4U series uses SIP over Transport Layer Security (TLS/SSL), which is the latest network security technology. It's also compatible with leading soft switch suppliers, such as 3CX, Broadsoft Broadworks. Moreover, it is carried with dual fimrware images that gives you a enterprise-level protection to avoid bricking your system once upgrade failed.

Key Features:

12-Line IP Phone: Supports up to 12 SIP accounts for enhanced functionality.
3.7-Inch Black-and-White Display: Large, easy-to-read screen for clearer navigation.
EXP43 Support: Compatibility with expansion modules for extended functionality.
Yealink Optima HD Voice Technology: Combines advanced hardware and wideband codec Opus for superb audio clarity.
Dual USB Ports: Allows for Bluetooth, Wi-Fi, USB headset, and USB recording functionalities.
Customizable Buttons: Features up to 21 programmable DSS keys across three pages.
Expansion Module Support: Connect up to three expansion modules for a total of 180 additional buttons.
Hearing Aid Compatible (HAC) Handset: Provides clearer audio for users with hearing loss.
Opus Codec: High-definition audio even on lower-quality networks.
Zero Touch Provisioning: Supports Yealink's Redirection and Provisioning Service (RPS) for easy deployment and maintenance.
Unified Firmware: Applies across the T4U series, simplifying upgrades and maintenance.
SIP Over TLS/SSL: Ensures secure communication with the latest network security technology.
Dual Firmware Images: Provides enterprise-level protection to prevent system failures during upgrades.
Interoperability: Compatible with leading softswitch suppliers like 3CX and Broadsoft Broadworks.

These features make the SIP-T43U a versatile and user-friendly tool for modern business communications.

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