Product Description
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
Key Features:
- User Interface Features
- 3.7" color screen with backlight
- 3.7" color screen with backlight
- Audio Features
- Optima HD voice with Acoustic Shield and Smart Noise Filtering
- 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
- Up to 12 SIP accounts
- Advanced Features
- Wi-Fi via WF40/WF50, Bluetooth via BT41
- Support expansion modules
- Support USB recording
- Wi-Fi via WF40/WF50, Bluetooth via BT41
- Connectivity
- Dual USB ports, dual-port Gigabit Ethernet
- Headset, EHS support
- Dual USB ports, dual-port Gigabit Ethernet
Technical Specifications
- Overview
- Operating System: Linux Based
- Camera: -
- Content Sharing: -
- Interface
- LCD Display: 3.7" 480 x 272-pixel color display
- LCD Type: Fixed
- LED Indicators: √
- Line Keys: 10
- Memory Keys: 27 (3 pages of 9 keys)
- Expansion Module/Microphone (Accessory, purchased separately): Yealink EXP43
- 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: 10-way Conferencing
Warranty Information
Standard manufacturer warranty (up to 2 years) included. Extended warranty (up to 5 years), advanced hardware replacement, maintenance & support for selected equipment available upon request.
