The T73U IP phone is an all-in-one business phone that enables excellent voice communications and extended functions. Equipped with Hall switch technology. the T73U provides you with a quieter office environment. The redesigned appearance of Yealink's new T73U makes the phone more fashionable. thinner. and more in line with modern aesthetic standards. The T73U supports 12 SIP account registrations and is equipped with a 2.8-inch color display. backlight. and an EXP55 expansion station. Combined with Yealink 's ultra-high-definition voice technology. the T73U provides excellent audio quality and clear voice communications. When making calls. the phone responds faster and more responsively. In addition. a built-in USB port realizes the functions of a USB headset and USB recording. and you can choose freely according to your needs. The T73U adopts Linux 6.1 and a TEE hardware encryption solution. providing you with a more secure storage experience. At the same time. it improves the phone'