Boost Productivity with New-Gen Design The new Yealink T4U series offers a modern and elegant appearance, along with improvements for greater interoperability and better collaboration. 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 The Yealink T4U series supports effortless mass deployment and Zero Touch provisioning with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism, making device management labor-saving and efficient for administrators. Display Touchscreen: No Display: LCD Display diagonal: 7.11 cm (2.8") Display resolution: 320 x 240 pixels Backlight display: Yes Audio Speakerphone: Yes Microphone mute: Yes Ports & interfaces USB 2.0 ports quantity: 2 Ethernet LAN (RJ-45) ports: 2 RJ-9 ports quantity: 2 Weight & dimensions Width: 224.9 mm Depth: 206.2 mm Height: 174.9 mm Power Power over Ethernet (PoE): Yes Operational conditions Operating temperature (T-T): -10 - 45 °C Operating relative humidity (H-H): 5 - 90% Storage temperature (T-T): -30 - 70 °C Network Ethernet LAN: Yes Wi-Fi: Yes Ethernet LAN interface type: Gigabit Ethernet Ethernet LAN data rates: 1000 Mbit/s Phone features Lines quantity: 8 lines Caller ID: Yes Phonebook capacity: 1000 entries Number of VoIP accounts: 12 Call waiting: Yes Call hold: Yes Call forwarding: Yes Conference call: Yes Anonymous call: Yes Full duplex: Yes Direct call: Yes SIP registrar server: Yes Packaging content Number of handles included: 1 pc(s) Ethernet cable: Yes Handset: Yes Quick start guide: Yes Stand included: Yes Design Product type: IP Phone Product colour: Grey Wall mountable: YesShow moreShow less
