The Yealink SIP-T42U IP phone is a feature-rich business tool for excellent communications and extended functionality. Featuring built-in programmable keys, this 12-line IP phone guarantees enhanced productivity. United Yealink Optima HD Voice technology and wideband codec of Opus gives you superb audio quality and crystal-clear voice communications. The phone feels quicker and more responsive when performing call features. In addition, the T42U includes dual USB ports, making Bluetooth, Wi-Fi, USB headset and USB recording possible, and you can use any two of them freely according to your needs. The Yealink T4U series offers the same elegant appearance as the T4 line, but with improvements for greater interoperability and better collaboration.

2.7" 192x64-pixel graphical LCD with backlight

Dual USB ports

Dual firmware images

Opus codec support

T4U Auto-P template unified

T4U firmware unified

Up to 12 SIP accounts

PoE support

Dual-port Gigabit Ethernet

USB headset and EHS support

Wi-Fi via WF40/WF50

Bluetooth via BT40/BT41

Stand with 2 adjustable angles

Wall mountable