Try ninyo to kahit hindi naka on ang data ni dito 1st on airplane mode for 5sec then of the moment mag ka signal ulit c dito 1 to 2sec tska k mag Dial ng tatawagan.
Volte is used for calling you dont need to open up the data kung call lang . At dapat volte compatible din tinatawagan mo. Kung other network may charge yan DITO TO DITO ang FREE BASTA NKA PROMO OR LEVEL UP kayo registered. Period.