描述

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 T42U can be enabled of the features including Bluetooth and Wi-Fi or connecting to a compatible wireless headset.

Key Features:

User Interface Features

2.7″ color screen 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

Dual USB ports, dual-port Gigabit Ethernet

Headset, EHS support

Technical Specifications

Overview

Operating System: Linux Based

Camera: –

Content Sharing: –

Interface

LCD Display: 2.7″ 192×64-pixel graphical LCD

LCD Type: Fixed

LED Indicators: √

Line Keys: 6

Memory Keys: 15 (3 pages of 9 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

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.

Videos

Yealink T4U Series of IP Phones Video

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