Invention Grant
US6148190A System and method of handling emergency calls in a radio telecommunications network in the presence of cloned mobile stations 有权
在存在克隆的移动台的情况下在无线电通信网络中处理紧急呼叫的系统和方法

System and method of handling emergency calls in a radio
telecommunications network in the presence of cloned mobile stations
Abstract:
A system and method in a radio telecommunications network for reconnecting a disconnected emergency call between a mobile station having an emergency (emergency MS) and a public safety answering point (PSAP). The method reduces the probability that a second MS such as a cloned MS will respond to a reconnection attempt. If a second MS responds to a first reconnection attempt, procedures are implemented to locate and connect the emergency MS. The network includes a serving mobile switching center (MSC) serving the emergency MS that includes a re-paging mechanism and a reconnection timer. The PSAP includes an alarm generator that notifies the serving MSC when a second MS is connected to the PSAP rather than the emergency MS. Upon receiving an alarm from the PSAP, the serving MSC reattempts to page the emergency MS.
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