发明授权
- 专利标题: Emergency call back method
- 专利标题(中): 紧急回拨方式
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申请号: US10270629申请日: 2002-10-16
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公开(公告)号: US07676215B2公开(公告)日: 2010-03-09
- 发明人: Mary Chin , Douglas Rollender
- 申请人: Mary Chin , Douglas Rollender
- 申请人地址: US NJ Murray Hill
- 专利权人: Alcatel Lucent USA Inc.
- 当前专利权人: Alcatel Lucent USA Inc.
- 当前专利权人地址: US NJ Murray Hill
- 代理机构: Harness, Dickey & Pierce
- 主分类号: H04M11/00
- IPC分类号: H04M11/00
摘要:
An emergency routing number is assigned to each switch in a wireless network. When a switch of the wireless network routes an emergency call to a Public Service Answering Point (PSAP), the switch sends the emergency routing number as the calling party number and provides the PSAP with the identifier of the mobile station. If the emergency call drops, the PSAP performs a call back using the emergency routing number as the called party number. The switch that routed the emergency call from the mobile station to the PSAP receives the call back. The PSAP also sends the identifier of the mobile station to the switch. When a switch receives its emergency routing number as the called party number, the switch recognizes an emergency call back situation and pages the mobile station identified by the mobile station identifier received in association with the emergency routing number. The mobile station is then reconnected with the PSAP.
公开/授权文献
- US20040203565A1 Emergency call back method 公开/授权日:2004-10-14
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