????? ????? ????? STC ?????? ??????? ?????? ???????? ?????? ????? . ???? ??? ???? ???? ????? ????? ????? ??????? . ???? {????? ???? ????????? ???????? , ?????? ????????? ???? ???????? ?? ?????? ?????? ?? ????? ?????? . ???? ???????? ???????: ??????? FIBER ?? STC ??? ??????? ??????? ????? ????? ?????????? ???????????? ?????????. ???? ??? ??????