The new-gen T4U series greatly improves the call experience and work efficiency with dual USB ports, Ultra HD
sound quality, faster response speed, and even more advanced features. The new T4U series will be a powerful
assistant for modern business.
Distraction-Free HD Communications
The Yealink T4U series provides distraction-free communications with Yealink’s industry-leading Acoustic Shield Technology. Moreover, by leveraging Yealink’s Optima HD audio technology, and the addition of Opus to its broad audio codec
list, Yealink’s new T4U series guarantees HD sound quality and a distortion-free communication experience.
- By supporting Opus, the Yealink T4U series delivers better audio quality in both high-bandwidth and poor network conditions, compared to other
wideband or narrowband codecs.
Dual USB Ports, Strong Scalability
All T4U models are equipped with dual USB ports, meaning the entire series allows users to connect two Bluetooth
dongles, Wi-Fi dongles, EHS40 headset adapters, USB headsets or USB disks at the same time. With dual USB
ports, the new T4U series flexibly adapts to various scenarios and demands.
Color Expansion Module EXP43
Equipped with Yealink’s new EXP43 expansion module, the new T46U/T48U offers a full-color experience, while the
former EXP40 only supports grayscale color mode. Moreover, when the EXP43 connects to the T43U grayscale phone
model, the interface automatically switches to grayscale mode, making it more unified.