| Audio |
| Speakerphone | |
| Microphone mute | |
| Design |
| Product type | IP Phone |
| Product colour | Grey |
| Wall mountable | |
| Display |
| Display | LCD |
| Display diagonal | 7.11 cm (2.8") |
| Display resolution | 320 x 240 pixels |
| Touchscreen | |
| Backlight display | |
| Network |
| Ethernet LAN interface type | Gigabit Ethernet |
| Ethernet LAN data rates | 1000 Mbit/s |
| Ethernet LAN | |
| Wi-Fi | |
| Operational conditions |
| Operating temperature (T-T) | -10 - 45 °C |
| Operating relative humidity (H-H) | 5 - 90% |
| Storage temperature (T-T) | -30 - 70 °C |
| Packaging content |
| Number of handles included | 1 pc(s) |
| Ethernet cable | |
| Handset | |
| Quick start guide | |
| Stand included | |
| Phone features |
| Lines quantity | 8 lines |
| Phonebook capacity | 1000 entries |
| Number of VoIP accounts | 12 |
| Call waiting | |
| Call hold | |
| Call forwarding | |
| Conference call | |
| Caller ID | |
| Anonymous call | |
| Full duplex | |
| Direct call | |
| SIP registrar server | |
| Ports & interfaces |
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 2 |
| RJ-9 ports quantity | 2 |
| Power |
| Power over Ethernet (PoE) | |
| Weight & dimensions |
| Width | 224.9 mm |
| Depth | 206.2 mm |
| Height | 174.9 mm |
The new Yealink T4U series offers a modern and elegant look and features improvements for greater interoperability and better collaboration.
Highlights
- 2.8 inch (7.11 cm) color LCD with backlight
- Up to 12 SIP accounts
- Optima HD voice with Acoustic Shield and Smart Noise Filtering
- Dual port Gigabit Ethernet
- Supports USB recording
- Supports expansion modules
- WLAN via WF40/WF50
- Bluetooth optional via BT40/BT41/BT51
- Support for color display expansion modules
- Headset, EHS support
- PoE support
- Stand with two adjustable angles, wall mountable
Product type
- End device Corded
- ear category (ElektroG): relevant, Category 6: small IT and telecommunications equipment, Small IT and telecommunications equipment B2C
Specifications
- Mounting: Table mounting, Wall mounting
Shipping
- WEEE: 18291819
Phone features
- Headset connectivity: USB, RJ9
- Hands-free function
- Hearing aid compatible
- Phone type: IP
- optical call signaling
Connections
- USB
- Number of LAN ports: 2
- Handset connection: spiral cord
Display
- Display diagonal inches: 2.8 \dlash- Display diagonal cm: 7.1 cm
- Display technology: LCD
- Display type: color
- Display lighting
Power supply
- PoE standard: PoE - 802.3af
- Power supply unit: optional
- mains, PoE
Basic properties
- Color: dark gray
- Manufacturer color name: Classic Gray
- Height: 174.9 mm
- Length/depth: 206.2 mm
- Width: 224.9 mm
- Weight: 900 g
Scope of delivery
- Yealink SIP-T44U IP phone
- Handset with handset cord
- Ethernet cable (2m CAT5E UTP cable)
- Stand
- Quick start guide
- Explanatory text Scope of delivery: Power supply via PoE. Power supply unit available separately.