ѹ7 [72,73] , (). Cisco , ѹ7 " " DoS [72].
, (/ISDN, GSM IN).
ѹ7
ITU-T .805, . - ѹ7 [74,75].
ѹ7
.805 ѹ7, (Security Layers).
ѹ7, : (Infrastructure Security) (Application Security). . .
ѹ7: , . .805 OSI ѹ7.
ѹ7 , , . ѹ7 ѹ7. ѹ7 (, , ) .
:
, MTP;
SCCP.
() ѹ7 . ѹ7. , /ISDN GSM ( ). ISUP TUP . , . :
GSM (MAP);
(INAP).
(/ISDN, GSM, IN), ѹ7. /ISDN ѹ7 , . GSM ѹ7 , , . IN ѹ7 . - ѹ7 .