The USB-A 2.0 port allows you to connect compatible peripherals such as expansion modules, headsets, Bluetooth receivers, and compatible call recording devices.
Optimize your comfort with the multi-angle stand. You can also use it to mount the phone onto a wall.
The Yealink T4U series supports easy mass deployment and Zero Touch provisioning with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism.