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1. 发明授权

US09264299B1 Transparent PSTN failover 有权
标题翻译：透明的PSTN故障切换
公开(公告)号：US09264299B1
公开(公告)日：2016-02-16
申请号：US13908644
申请日：2013-06-03
申请人： CenturyLink Intellectual Property LLC
发明人： Charles A. Palmer , Tod Higman
IPC分类号： H04L12/24 , H04L12/703 , H04M7/00
CPC分类号： H04L41/0654 , H04L41/0659 , H04L45/28 , H04L65/1006 , H04L2012/6475 , H04M7/0006 , H04M7/0057 , H04M7/122
摘要： Novel tools and techniques for implementing Transparent PSTN Failover. In some embodiments, a VoIP switch might receive a call request for connection between a calling party at a calling telephone number (“TN”) and a called party at a called TN. Based on a determination that connection via a session border controller (“SBC”) between the VoIP switch and an Internet Protocol (“IP”) gateway has been lost, the VoIP switch might route the call request to a PSTN redirect TN through the PSTN. One of the Class 5 switch of the PSTN or the IP gateway might replace the redirect TN with the called TN, based on a determination that the redirect TN represents a PSTN failover. The IP gateway may then route the call request to an IP PBX for terminating (establishing) the call connection between calling party and called party, without interception by an operator, receptionizt, or auto attendant.
摘要翻译：实现透明PSTN故障切换的新型工具和技术。在一些实施例中，VoIP交换机可以接收呼叫请求，用于在呼叫电话号码（“TN”）处的主叫方与被叫TN的被叫方之间进行连接。基于通过VoIP交换机和因特网协议（“IP”）网关之间的会话边界控制器（“SBC”）的连接已经丢失的确定，VoIP交换机可能通过PSTN将呼叫请求路由到PSTN重定向TN 。基于确定重定向TN表示PSTN故障转移，PSTN或IP网关的5类交换机之一可以用被叫TN替代重定向TN。然后，IP网关可以将呼叫请求路由到IP PBX，用于终止（建立）呼叫方和被叫方之间的呼叫连接，而不用操作员，接收者或自动话务员拦截。

2. 发明授权

US09866429B2 Transparent PSTN failover 有权
公开(公告)号：US09866429B2
公开(公告)日：2018-01-09
申请号：US14991682
申请日：2016-01-08
申请人： CenturyLink Intellectual Property LLC
发明人： Charles A. Palmer , Tod Higman
IPC分类号： H04L12/24 , H04L12/703 , H04L29/06 , H04M7/00 , H04M7/12 , H04L12/64
CPC分类号： H04L41/0654 , H04L41/0659 , H04L45/28 , H04L65/1006 , H04L2012/6475 , H04M7/0006 , H04M7/0057 , H04M7/122
摘要： Novel tools and techniques for implementing Transparent PSTN Failover. In some embodiments, a VoIP switch might receive a call request for connection between a calling party at a calling telephone number (“TN”) and a called party at a called TN. Based on a determination that connection via a session border controller (“SBC”) between the VoIP switch and an Internet Protocol (“IP”) gateway has been lost, the VoIP switch might route the call request to a PSTN redirect TN through the PSTN. One of the Class 5 switch of the PSTN or the IP gateway might replace the redirect TN with the called TN, based on a determination that the redirect TN represents a PSTN failover. The IP gateway may then route the call request to an IP PBX for terminating (establishing) the call connection between calling party and called party, without interception by an operator, receptionist, or auto attendant.

3. 发明申请

US20160119179A1 Transparent PSTN Failover 有权
标题翻译：透明的PSTN故障切换
公开(公告)号：US20160119179A1
公开(公告)日：2016-04-28
申请号：US14991682
申请日：2016-01-08
申请人： CenturyLink Intellectual Property LLC
发明人： Charles A. Palmer , Tod Higman
IPC分类号： H04L12/24 , H04L29/06
CPC分类号： H04L41/0654 , H04L41/0659 , H04L45/28 , H04L65/1006 , H04L2012/6475 , H04M7/0006 , H04M7/0057 , H04M7/122
摘要： Novel tools and techniques for implementing Transparent PSTN Failover. In some embodiments, a VoIP switch might receive a call request for connection between a calling party at a calling telephone number (“TN”) and a called party at a called TN. Based on a determination that connection via a session border controller (“SBC”) between the VoIP switch and an Internet Protocol (“IP”) gateway has been lost, the VoIP switch might route the call request to a PSTN redirect TN through the PSTN. One of the Class 5 switch of the PSTN or the IP gateway might replace the redirect TN with the called TN, based on a determination that the redirect TN represents a PSTN failover. The IP gateway may then route the call request to an IP PBX for terminating (establishing) the call connection between calling party and called party, without interception by an operator, receptionist, or auto attendant.
摘要翻译：实现透明PSTN故障切换的新型工具和技术。在一些实施例中，VoIP交换机可以接收呼叫请求，用于在呼叫电话号码（“TN”）处的主叫方与被叫TN的被叫方之间进行连接。基于通过VoIP交换机和因特网协议（“IP”）网关之间的会话边界控制器（“SBC”）的连接已经丢失的确定，VoIP交换机可能通过PSTN将呼叫请求路由到PSTN重定向TN 。基于确定重定向TN表示PSTN故障转移，PSTN或IP网关的5类交换机之一可以用被叫TN替代重定向TN。然后，IP网关可以将呼叫请求路由到IP PBX，以终止（建立）呼叫方和被叫方之间的呼叫连接，而不需要由操作员，接待员或自动助理拦截。

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