Yealink SIP-T43U

A Well-Rounded SIP Phone for Clear Communications. The SIP-T43U IP phone is a feature-rich business tool for excellent communications.

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 Benefits
Easy 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 Interoperability
Yealink 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.

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