Yealink presents a dynamic business communication solution to executives and professionals with the new SIP-T77U IP phone. The phone employs an appealing large touch screen that makes the switch between pages and applications swift, easy, and convenient. United Yealink Optima HD Voice technology, the T77U awards you superb audio quality and crystal-clear voice communications. Moreover, the T77U puts dual USB ports in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according to your needs. The Yealink new T7X series has a slimmer, sleeker look, improved interoperability, and better collaboration.