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.
Color-screen Expansion Module EXP43
The 4.3-inch color screen expansion module is designed to offer advanced call handling capabilities with its simplified UI and up to 60 programmable keys for various features.
| Design |
|---|
| Product colour |
Grey |
| Handset type |
Wireless handset |
| Product type |
IP Phone |
| Phone features |
|---|
| Caller ID |
Yes |
| Phonebook capacity |
1000 entries |
| Number of VoIP accounts |
16 |
| Call waiting |
Yes |
| Call hold |
Yes |
| Call forwarding |
Yes |
| Conference call |
Yes |
| Redialing |
Yes |
| Display |
|---|
| Backlight display |
Yes |
| Touchscreen |
No |
| Display resolution |
480 x 272 pixels |
| Display diagonal |
10.9 cm (4.3") |
| Display |
LCD |
| Audio |
|---|
| Voice codecs |
AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC |
| Speakerphone |
Yes |
| Network |
|---|
| Security algorithms |
AES, HTTPS, SRTP, TLS |
| Bluetooth |
Yes |
| Wi-Fi |
Yes |
| Ethernet LAN interface type |
Gigabit Ethernet |
| Ethernet LAN data rates |
10,100,1000 Mbit/s |
| Ethernet LAN |
Yes |
| Ports & interfaces |
|---|
| Ethernet LAN (RJ-45) ports |
2 |
| Expansion module support |
Yes |
| USB 2.0 ports quantity |
2 |
| Power |
|---|
| AC adapter input voltage |
100 - 240 V |
| Power over Ethernet (PoE) |
Yes |
| Operational conditions |
|---|
| Operating temperature (T-T) |
0 - 40 °C |
| Operating relative humidity (H-H) |
10 - 95% |
| Weight & dimensions |
|---|
| Height |
185 mm |
| Depth |
213 mm |
| Width |
244 mm |
| Packaging content |
|---|
| Number of handles included |
1 pc(s) |
| Logistics data |
|---|
| Harmonized System (HS) code |
85171800 |
