1. Bonisa: efakwe kwi-OPB, iphaneli yokubonisa i-matrix ye-dot ebomvu, isibhengezo sesikhululo sezwi esidibeneyo, umsebenzi wonxibelelwano lwamaqhosha.2. Akukho mboniso: efakwe kwi-OPB, ukudibanisa isibhengezo sesikhululo selizwi kunye nemisebenzi yonxibelelwano lwamaqhosha.