| 摘要 |
<p>A system and method for detecting and preventing a fraudulent telephone call in telecommunication system is provided. First, a termining number of a first call (80) and an originating number of a second call (805) are received from a telecommunication network. The terminating number of the first call is compared with the originating number of the second calls which are originated within a predetermined time period from a termination of the first call (807). After comparison, it is determined whether the first and the second calls are fraudulent telephone calls.</p> |
