The ESI ePhone4 delivers a familiar, every day user experience with thirty-six (36) programmable feature keys, a 4” color display, desi-less button labeling, presence indication, call history and many more of the traditional business phone features that ESI customers have come to rely on. Users experience crisp, clear audio thanks to the high-definition handset and full duplex speakerphone. The ESI ePhone4 is ideal for active business phone users.