T28pn is an executive ip phone designed for true versatility and optimum efficiency in the dynamic office environment unrivalled hd voice quality innovative functional richness and friendly user interface combine with contemporary design for a truly advanced professional handset features dual 10100 ethernet ports 6 user accounts amp 6 line keys 320 x 160 pixels graphical lcd 13 programmable keys with led indication busy lamp field blf shared bridged appearance bla expansion module s