Yealink T42U


Starting off the T4U series, the T42U is a well rounded SIP phone designed to fit in any office environment. Benefitting from the new powerful chipset from Yealink, the T42U offers users a reliable and scalable deskphone with enhanced audio quality.

Supporting mass deployment as well as zero touch provisioning, the T42U is ideal for large deployments with easy management for administrators.

Featuring a 2.7” graphical LCD screen with backlight, support for up to 12 SIP accounts and advanced connectivity via 2 USB ports. The T42U allows users to connect accessories such as Yealink’s latest headsets or WiFi/Bluetooth dongles.


  • 2.7" 192x64-pixel graphical LCD with backlight
  • Up to 12 SIP accounts
  • Dual USB ports
  • 5-way conference calls
  • Opus codec support
  • 6 Line keys with LED
  • 15 programmable DDS keys over a 3 page view
  • T4U firmware unified
  • Dual-port Gigabit Ethernet
  • USB headset and EHS support
  • PoE support or PSU (optional)
  • Wi-Fi via WF40 USB dongle or WF50 USB dongle
  • Bluetooth via BT40 or BT41 USB dongle
  • Stand with 2 adjustable angles
  • Wall mountable
  • Lifetime Warranty

Ordering Information


Support & Downloads

Technical details

Support Links

Related blog posts

What's in the box

  • Yealink T42U Desk Phone
  • Handset and cable
  • Cat5e Network cable (2M)
  • Stand
  • Quick Reference Guide


This product comes with a Lifetime Warranty, this warranty covers selected Yealink products purchased from ProVu from the date of purchase until 12 months after the official end-of-life date.

Media downloads

Yealink T42U
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Yealink T42U
High Resolution | Web | Thumb
Yealink T42U
High Resolution | Web | Thumb