Yealink EXP50 Expansion moduleFor Yealink T5 series IP phones (272 x 480) Color screen20 physical keys3 control keys for fast switching pagesCompatible with T53W, T54W, T57W and T58A Yealink IP phones assignmentDatasheets↪ Yealink EXP50 Datasheet (EN) library_booksUser guides↪ Yealink EXP50 User Guide (EN)