T4 Series Phones

The new Yealink T4U series offers a modern and elegant appearance, along with improvements for greater interoperability and better collaboration.

The new Yealink T4U series offers a modern and elegant appearance, along with improvements for greater interoperability and better collaboration.

The new Yealink T4U series offers a modern and elegant appearance, along with improvements for greater interoperability and better collaboration.

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance.

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance.

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance.