Yealink SIP-T74U 4.3 inch 480 x 272 IP Phone
☎️ Yealink SIP-T74U IP Phone
Multifunctional SIP Phone with Excellent Voice Communication. A high-end business phone with a 4.3-inch color display, designed specifically for executives and professionals.
📋 核心特色 Key Features
- 4.3-inch 480×272 resolution TFT color screen
- Up to 16 SIP accounts
- Dual-port Gigabit Ethernet with PoE
- 1 x USB 2.0 interface (supports Wi-Fi via WF50, Bluetooth via BT41/BT51)
- Ultra-HD sound quality with Acoustic Shield and Smart Noise Filtering
- TEE hardware encryption solution
- Linux 6.1 version
- Dual system function
- 10 line keys with LED (up to 50 DSS keys, 5 pages)
- Supports color-screen expansion modules (up to 3 EXP55)
- Stand with 2 adjustable angles, wall mountable
- Touchable buttons (message, headset, mute, pagination)
- Three Rings of Security
- Supports dark and light themes
屏幕：4.3 inch 480 x 272 TFT color LCD screen
SIP 帳號：16 個
網絡：Dual-port Gigabit · PoE ✅
Wi-Fi：📡 Via WF50 Dongle | 藍牙：🎧 Via BT41/BT51 Dongle
USB：1 (USB 2.0)
尺寸：234.95 mm x 212.57 mm x 55.14 mm (W*D*H)
Description
Yealink SIP-T74U — Multifunctional SIP Phone with Excellent Voice Communication
Multifunctional SIP Phone with Excellent Voice Communication. A high-end business phone with a 4.3-inch color display, designed specifically for executives and professionals.
⭐ 產品亮點
- 4.3-inch 480×272 resolution TFT color screen
- Up to 16 SIP accounts
- Dual-port Gigabit Ethernet with PoE
- 1 x USB 2.0 interface (supports Wi-Fi via WF50, Bluetooth via BT41/BT51)
- Ultra-HD sound quality with Acoustic Shield and Smart Noise Filtering
- TEE hardware encryption solution
- Linux 6.1 version
- Dual system function
- 10 line keys with LED (up to 50 DSS keys, 5 pages)
- Supports color-screen expansion modules (up to 3 EXP55)
- Stand with 2 adjustable angles, wall mountable
- Touchable buttons (message, headset, mute, pagination)
- Three Rings of Security
- Supports dark and light themes
🔊 音頻技術
Yealink SIP-T74U 配備 Yealink Optima HD Voice 技術，結合 AI Noise Cancellation 智能降噪，確保每次通話都清晰自然。Acoustic Shield 技術有效阻隔環境噪音，Smart Noise Filtering 智能過濾進一步提升語音品質。
| 音頻規格 | 詳情 |
|---|---|
| HD Voice | Yealink Optima HD Voice + AI Noise Cancellation |
| 降噪技術 | Acoustic Shield + Smart Noise Filtering |
| 編解碼器 | AMR-WB (optional), G.722, AMR-NB (optional), PCMU (G.711μ), PCMA (G.711A), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC |
| 聽筒兼容 | HAC（Hearing Aid Compatible） |
📊 完整規格表
| 規格項目 | 詳情 |
|---|---|
| 產品型號 | Yealink SIP-T74U |
| SIP 帳號 | 16 個 |
| 屏幕尺寸 | 4.3 inch |
| 屏幕類型 | TFT color LCD screen |
| 解像度 | 480 x 272 |
| 網絡接口 | Dual-port Gigabit |
| Wi-Fi | yes (via WF50 dongle) |
| 藍牙 | yes (via BT41/BT51 dongle) |
| USB 接口 | 1 (USB 2.0) |
| PoE 供電 | yes (IEEE 802.3af, class 2) |
| 電源供應 | optional (AC 100-240V input, DC 5V/2A output) |
| 功能鍵 | 10 line keys with LED (up to 50 DSS keys, 5 pages), 4 touch buttons, 4 function keys, 2 volume control keys, 6 navigation keys |
| 安全認證 | TLS 1.3, SRTP, AES256 config encryption, OpenVPN, IEEE 802.1X, L2TP VPN, WPA2/WPA3, Secure boot, TEE hardware encryption, MD5/SHA1/SHA224/SHA256/SHA384/SHA512 authentication |
| 自動配置 | Auto provision via FTP/TFTP/HTTP/HTTPS, PnP, RPS, TR-069, Zero-Touch, Broadsoft device management, YDMP/YMCS |
| 作業系統 | Linux 6.1 + Dual System |
| 尺寸 | 234.95 mm x 212.57 mm x 55.14 mm (W*D*H) |
| 工作溫度 | -10 to +45°C (+14 to 113°F) |
| 擴展模組 | 支援最多 3 個 EXP55 色屏擴展側車 |
🔒 企業級安全 — Three Rings of Security
Yealink SIP-T74U 採用 TEE（Trusted Execution Environment）硬件加密技術，配合 Secure Boot、配置文件 AES256 加密、TLS 1.3 傳輸加密及 SRTP 語音加密，提供全方位的通話安全保障。
🛡️ 安全認證一覽
- 硬件加密：TEE（Trusted Execution Environment）
- 引導安全：Secure Boot + Dual Firmware Image
- 語音加密：SRTP
- 傳輸加密：TLS 1.3、OpenVPN、L2TP VPN
- 網絡准入：IEEE 802.1X、WPA2/WPA3
- 配置加密：AES256
📦 適用場景
- 企業主管 / 管理層 — 4.3 吋色屏，功能齊全，配合 EXP55 擴展模組應對高話量需求
- 專業人士 / Knowledge Worker — HD Voice + AI 降噪確保每通電話都清晰專業
- 前台 / 接待 — 支援多達 16 個 SIP 帳號，配合側車擴展實現高效來電轉接
- 遠端辦公 — USB Wi-Fi Dongle 支援無線網絡連接，靈活擺放
ℹ️ 完整技術規格請參考官方文檔：Yealink SIP-T74U 官方產品頁
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