Official Partner
Yealink SIP- T42U
Feature-rich SIP Phone for Workers of Co-working Space
Boost Productivity with New Powerful Chipsets
Sound and Hear with Remarkable Clarity
Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. 
Efficient Deployment and Management
Yealink T4U series supports effortless mass deployment and Zero Touch Provisioning with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism, making the device management labor-saving and efficient for the administrators.
Dual USB Ports for Flexible Expansion Choices
Yealink Wireless/Wired USB Headsets
Seamlessly compatible with Yealink wireless/wired USB headsets to meet the needs of users with large call volumes or headset preference and ideal for call center or administrative assistants.
Bluetooth/Wi-Fi/Wireless Headset Dongles
With the optional USB dongles, the T43U can be enabled of the features including Bluetooth and Wi-Fi or connecting to a compatible wireless headset.
Yealink T42U SIP Phone | Features at a Glance
User Interface Features
• 2.7" graphical LCD with backlight
Audio Features
• Optima HD voice with Acoustic Shield and Smart Noise Filtering
Basic Features
• Up to 12 SIP accounts
• PoE support
• Stand with two adjustable angles, wall mountable
Advanced Features
• Wi-Fi via WF40/WF50, Bluetooth via BT41
• Support USB recording
Connectivity
• USB Headsets, EHS support
• Headset, EHS support
| Feature | Details |
|---|---|
| Overview | |
| Operating System | Linux Based |
| Camera | - |
| Content Sharing | - |
| Interface | LCD Display |
| 2.7" 192x64-pixel graphical LCD | |
| LCD Type | Fixed |
| LED Indicators | √ |
| Line Keys | 6 |
| Memory Keys | 15 (3 pages of 5 keys) |
| Expansion Module/Microphone | - (Accessory, purchased separately) |
| Foot Stand | 2 Adjustable Angles |
| Audio Features | |
| HD Voice | HD Speaker, HD Handset |
| Speakerphone | Full-duplex |
| Wideband Codec | G.722, Opus |
| Narrowband Codec | G.711(A/µ), G.729A/B, G.726, G.723.1, iLBC, Opus |
| HAC Handset | √ |
| Acoustic Shield | √ |
| Yealink Noise Proof | - |
| Video Features | |
| Video Resolution | - |
| Video Codecs | - |
| Connectivity | |
| USB Port (2.0 Compliant) | 2 |
| Ethernet Port | Dual-port Gigabit Ethernet |
| Handset Port (RJ-9) | √ |
| Headset Port (RJ-9) | √ |
| PoE | √ |
| Headset | USB Headset |
| Bluetooth | √ (via BT40/BT41) |
| Wi-Fi | √ (via WF40/WF50) |
| HDMI | - |
| Wall Mountable | √ |
| Corded-Cordless Phone | - |
| Door Phone Integration | - |
| Telephony Features | |
| SIP Accounts | 12 |
| N-way Conferencing | 5-way Conferencing |
| Description | Downloads |
|---|---|
| Yealink T42U SIP Desktop Phone Datasheet | Downloads |
| Yealink T4U Series IP Phone Flyer | Downloads |
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