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Yealink presents a dynamic business communication solution to executives and professionals with the new SIP-T48U IP phone. The phone employs and appealing large touch screen that makes the switch between pages and applications swift easy and convenient. United Yealink Optima HD Voice technology and wideband codec of Opus the T48U awards you the superb audio quality and crystal-clear voice communications. Moreover the T48U 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 T4U series offers the same elegant appearance as the T4 line but with improvements for greater interoperability and better collaboration.