The Yealink T48U IP desktop phone enables dynamic business communication with outstanding audio and crystal-clear voice quality. Large touchscreen with 800 x 480 backlit colour LCD Expandable with additional modules Yealink Optima HD audio quality 2 x Gigabit LAN ports Supports PoE (Power over Ethernet, IEEE 802.3af, class 3), phone book for up to 1000 entries Up to 16 SIP accounts EHS support Note: Power supply available separately