发明名称 Variable length called number screening
摘要 A system for preventing telecommunications fraud, the system comprising a database, at least one processor and related software, the at least one processor receives and stores numbers representing terminating ANIs in the database that have generated a fraud alert. The stored numbers include at least a portion of the terminating ANI and at least one variable length character, and are accessible to block subsequent calls directed at the respective terminating ANIs. The at least one processor receives a dialed terminating ANI representing a subsequently dialed call and checks the database to determine if the dialed terminating ANI matches a stored number. The at least one variable length character matches any corresponding character in the dialed terminating ANI. One variable length character may also match one or more subsequent characters in the dialed terminating ANI. A match between the dialed terminating ANI and a stored number initiate a block of the dialed call.
申请公布号 US6590967(B1) 申请公布日期 2003.07.08
申请号 US20010863144 申请日期 2001.05.23
申请人 WORLDCOM, INC. 发明人 MARCHAND DEAN C.;SPRINGER ARTHUR LANCE
分类号 H04M3/42;H04M3/22;H04M3/38;H04M15/00;H04M15/06;(IPC1-7):H04M15/00;H04M17/00 主分类号 H04M3/42
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