Yealink SIP-T43U IP phone, Grey, 12 lines, LCD, Wi-Fi

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 EXP43 support. Featuring Yealink Optima HD Voice technology and the Opus wideband codec, the T43U provides superb audio quality and crystal-clear voice communications. The phone feels quicker and more responsive when performing call features. Moreover, the T43U features dual USB ports that enable Bluetooth, Wi-Fi, USB headsets, and USB recording, allowing you to use any two of them freely according to your needs. The new Yealink T4U series offers the same elegant appearance as the T4 line, but with improvements for greater interoperability and better collaboration.

Easy Customization and High Expansibility
Accompanied by two USB ports, the T43U is your right-hand man in the office, making Bluetooth, Wi-Fi, USB headsets, and USB recording possible; 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 up to 21 paperless DSS keys, but can also connect up to three expansion modules, providing 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 deliver higher HD audio quality than other wideband codecs in high network bandwidth environments; however, if your current network quality is poor, Opus can still provide better audio quality than other narrowband codecs. Additionally, its hearing aid compatible (HAC) handset helps individuals with hearing loss to hear voices more clearly.

Efficient Installation and Provisioning
The Yealink T4U series supports efficient provisioning and effortless mass deployment with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism to help you achieve Zero Touch Provisioning without any complex manual settings, making the T4U series simple to deploy, easy to maintain, and easy to upgrade. Furthermore, a unified firmware and auto-provisioning template that applies to all T4U phone models saves even more time and costs for businesses, while simplifying management and maintenance.

Secure Transport and Interoperability
The Yealink T4U series uses SIP over Transport Layer Security (TLS/SSL), which is the latest network security technology. It is also compatible with leading softswitch suppliers, such as 3CX and Broadsoft Broadworks. Moreover, it is equipped with dual firmware images, providing enterprise-level protection to avoid bricking your system if an upgrade fails. Yealink SIP-T43U. Product type: IP Phone, Product colour: Grey, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: In-band, Out-of-band, SIP info. Lines quantity: 12 lines, Phonebook capacity: 1000 entries. Display: LCD, Display diagonal: 9.4 cm (3.7"), Display resolution: 360 x 160 pixels. Voice codecs: AGC, AJB, AMR-NB, AMR-WB, G.711Mu, G.711a, G.723.1, G.726, G.729ab, OPUS, PLC, VAD, iLBC