Sound with remarkable clarityYealink Optima HD Voice technology combines state-of-the-art hardware and software with wideband technology for maximum acoustic performance. Effective implementation and managementThe Yealink T4U series supports seamless mass deployment and Zero Touch Provisioning via the RPS service and Boot mechanism, making device management labor-saving and efficient for administrators. Dual USB ports for flexible expansion optionsEXP43 Color Screen Expansion Module - The expansion module with a 4.3-inch color screen is designed to offer advanced call handling capabilities with a simplified user interface and up to 60 programmable keys for various functions. Yealink Wireless/Wired USB Headsets - Seamlessly compatible with Yealink USB wireless/wired headsets to meet the needs of users with high call volume or headset preferences and ideal for call centers or administrative assistants. Bluetooth/Wi-Fi/Wireless Headset - With optional USB dongles, the T48U can enable features such as Bluetooth and Wi-Fi or connect to a compatible wireless headset. | ||||||||
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