Sound and hear with remarkable clarity
Yealink Optima HD Voice technology combines state-of-the-art hardware and software with wideband technology for maximum acoustic performance.

Efficientprovisioning and management
YealinkT4U series supports effortless mass provisioning and zero touch provisioning with Yealink’s Redirection and Provisioning Service (RPS) and boot mechanism, making device management labour-saving and efficient for administrators.

Features at a glance
– 3.7-inch backlit screen
– Optima HD Voice with Acoustic Shield and Intelligent Noise Filtering
– Up to 12 SIP accounts
– PoE support
– Stand with two adjustable angles, wall mountable
– Wi-Fi via WF40/WF50, Bluetooth via BT41
– Supports expansion modules
– Supports USB recording
– Two USB ports, dual port Gigabit Ethernet
– Headset, EHS support

Basic features
– Colour: Black
– Width: 224.9 mm
– Height: 174.9 mm
– Length/Depth: 206.2 mm
– Weight: 1 kg

Phone features
– Headset connectivity: USB
– Phone type: IP
– Number of phonebook entries: 1000
– Optical call signalling:
– Handsfree function
– Hearing aid compatible

Connections
– Connections: USB
– Number of LAN ports : 2
– Handset connection: coiled cord

Display
– Display diagonal inches: 3.7 ”
– Display diagonal cm: 9.4 cm
– Display type: monochrome
– Display technology: LCD

Power supply
– Power supply:
PoE
Mains
– Power supply: optional
– PoE standard: PoE – 802.3af

Shipping
– WEEE: 18291819