X3U Pro is an entry-level Gigabit color screen IP Phone. It use 2.8-inch color screen, and support HD voice, gigabit ethernet, 6 SIP accounts, PoE, 3 line keys corresponding to the screen and 6-party conference etc rich functions. It provides the high-quality and convenient experience for users. 1000 local phonebook, caller ID, call hold, call transfer ?? 3 Line keys on the main display 2.8 main color display / HD audio on speakerphone and handset