Th? cào ?i?n tho?i là m?t ph??ng th?c truy?n th?ng nh?ng v?n r?t ph? bi?n. ?? thanh toán qua th? cào th?c hi?n theo các b??c sau: Davis is currently deaf in equally ears, but he had a cochlear implant placed in his appropriate ear that permits him to hear. RR