"Mlio chaguomsingi" "Sauti chaguomsingi ya arifa" "Sauti chaguomsingi ya kengele" "Ongeza mlio wa simu" "Ongeza kengele" "Ongeza arifa" "Futa" "Imeshindwa kuongeza mlio maalum wa simu" "Imeshindwa kufuta mlio maalum wa simu" "Sauti"