Additional Details ------------------------------ Product description: The Yealink T73U IP phone is a versatile business communication device that delivers high-quality voice performance and advanced functionality. Integrated with Hall switch technology, it ensures a quieter workspace. Its redesigned, slimmer profile aligns with modern design standards, offering a more stylish appearance. Supporting up to 12 SIP accounts, the T73U features a 2.8-inch color display with backlight and compatibility with the EXP55 expansion module. Yealink?s ultra-HD voice technology guarantees clear and responsive audio during calls. The built-in USB port supports both USB headsets and call recording, providing flexible options for users. Powered by Linux 6.1 and a TEE hardware encryption solution, the T73U enhances data security and system performance, enabling smoother interoperability and collaboration. As part of the T7X series, it integrates seamlessly with Yealink?s ecosystem, supporting headset configuration and upgrades via the LCD, as well as intelligent channel switching through wearing detection.