The GXP2135 enterprise IP Phone features up to 8 lines/line keys and 4 SIP accounts using a 2.8 inch color display LCD and full HD audio. It includes up to 32 digital, on-screen speed dial/BLF keys to help users be more productive and efficient. It supports the fastest possible connection speeds with dual Gigabit network ports, features integrated PoE and includes built-in Bluetooth for syncing with mobile devices and Bluetooth headsets.