The Avaya 1616 was made for the navigator type user (receptionist, assistants, managers). This 1600 Series set is an IP phone is compatible with Avaya Communications Manager and IP Office R6.0 and higher. It supports the BM32 32 button expansion module.
This is the English text version which Avaya has discontinued. They have transitioned to the Global version which removes the text from below the buttons. This is the only difference between the Global and Text version.