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    • 3. 发明授权
    • Emergency assistance calling for voice over IP communications systems
    • 呼叫IP通信系统的紧急援助
    • US09565307B2
    • 2017-02-07
    • US13968217
    • 2013-08-15
    • VOIP-PAL.COM, INC.
    • Johan Emil Viktor BjörsellMaksym Sobolyev
    • H04W4/22H04M3/51H04M7/00H04L29/06
    • H04M3/5116H04L65/1006H04L65/1046H04L65/1069H04L65/40H04M3/42331H04M7/006H04M2242/04
    • In accordance with one aspect of the invention, a process for handling emergency calls from a caller in a voice over IP system is described. The process involves receiving a routing request message including a caller identifier and a callee identifier. The process also involves setting an emergency call flag active in response to the callee identifier matching an emergency call identifier pre-associated with the caller. The process further involves producing an emergency response center identifier in response to the emergency call identifier. The process also involves determining whether the caller identifier is associated with a pre-associated direct inward dialing (DID) identifier. The process further involves producing a direct inward dialing (DID) identifier for the caller by associating a temporary DID identifier with the caller identifier when the emergency call flag is active and it is determined that the caller has no pre-associated DID. The process also involves producing a routing message including the emergency response center identifier and the temporary DID identifier for receipt by a routing controller operable to cause a route to be established between the caller and the emergency response center.
    • 根据本发明的一个方面,描述了一种在IP语音系统中处理来自呼叫者的紧急呼叫的过程。 该过程涉及接收包括主叫标识符和被叫标识符的路由请求消息。 该过程还包括响应于与呼叫者预先关联的紧急呼叫标识符匹配的被呼叫者标识符来设置活动的紧急呼叫标志。 该过程还涉及响应于紧急呼叫标识符产生紧急响应中心标识符。 该过程还涉及确定呼叫者标识符是否与预先关联的直接向内拨号(DID)标识符相关联。 该过程进一步包括当紧急呼叫标志是活动的并且确定呼叫者没有预先关联的DID时,通过将临时DID标识符与呼叫者标识符相关联来产生呼叫者的直接向内拨号(DID)标识符。 该过程还涉及产生路由消息,该路由消息包括紧急响应中心标识符和临时DID标识符,用于由路由控制器接收,用于使呼叫者和应急响应中心之间建立路由。