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1. 发明授权

US06930999B1 Scalable voice over IP system providing independent call bridging for outbound calls initiated by user interface applications 有权
标题翻译：可扩展的IP语音系统，为用户界面应用程序发起的出站呼叫提供独立的呼叫桥接
公开(公告)号：US06930999B1
公开(公告)日：2005-08-16
申请号：US09606692
申请日：2000-06-30
申请人： James Alan Craig , Kelly Wycall Phillips , Narasimha K. Nayak
发明人： James Alan Craig , Kelly Wycall Phillips , Narasimha K. Nayak
IPC分类号： H04J3/16 , H04J3/22 , H04L12/16 , H04L12/66 , H04L29/06 , H04M1/64 , H04M3/533 , H04M3/58 , H04M7/00 , H04Q11/00
CPC分类号： H04L29/06027 , H04L65/1009 , H04L65/1026 , H04L65/103 , H04L65/1036 , H04L65/104 , H04L65/608 , H04L65/80 , H04M3/533 , H04M3/53333 , H04M3/58
摘要： An IP telephony gateway and a user interface resource enable a subscriber to place an outgoing call according to the voice over IP (H.323) protocol to a destination party from a user interface session of an intelligent dial tone service such as voice activated dialing, and resume the user interface session upon completion of the outgoing call with the destination party. The IP telephony gateway establishes a user interface session for the subscriber with the user interface resource across a first Real Time Protocol (RTP) data stream. The user interface resource initiates a second RTP data stream to a destination party in response to reception of a prescribed command from the subscriber. Although an RTP bridge connecting the first and second RTP data streams can be maintained by the user interface resource, the user interface resource may also use the Empty Capability Set feature in the H.323 standard to cause the IP telephony gateway to close the first and second RTP data streams to the user interface resource. The user interface resource then issues Non-Empty Capability Set messages to the IP telephony gateway for the first and second RTP data streams, causing the IP telephony gateway to internally bridge the first and second RTP data streams. The user interface resource monitors connections between the subscriber and the destination party, and upon detecting a disconnect by the destination party causes the IP telephony gateway to resume the user interface session, by repeating the sequence of sending Empty Capability Set and Non-Empty Capability Set messages to the IP telephony gateway to break down the bridge and re-establish the connection between the subscriber and the user interface resource.
摘要翻译： IP电话网关和用户接口资源使订户能够根据IP语音（H.323）协议将出呼叫从智能拨号音服务的用户接口会话（例如语音激活拨号）发送到目的地，并且在与目标方进行呼出完成时恢复用户界面会话。 IP电话网关通过第一实时协议（RTP）数据流为用户建立与用户接口资源的用户接口会话。响应于从订户接收到规定的命令，用户接口资源向目的地发起第二RTP数据流。虽然连接第一和第二RTP数据流的RTP桥可以由用户界面资源来维护，但是用户接口资源也可以使用H.323标准中的空能力集特征来使得IP电话网关关闭第一和第第二RTP数据流到用户界面资源。然后，用户接口资源向第一和第二RTP数据流的IP电话网关发出非空能力设置消息，导致IP电话网关内部桥接第一和第二RTP数据流。用户接口资源监视用户和目的方之间的连接，并且在检测到目的方之间的断开连接时，通过重复发送空能力集和非空能力集的顺序使得IP电话网关恢复用户界面会话消息到IP电话网关，以分解网桥并重新建立用户和用户界面资源之间的连接。

2. 发明授权

US07729345B2 Scalable voice over IP system providing independent call bridging for outbound calls initiated by user interface applications 有权
标题翻译：可扩展的IP语音系统，为用户界面应用程序发起的出站呼叫提供独立的呼叫桥接
公开(公告)号：US07729345B2
公开(公告)日：2010-06-01
申请号：US11155498
申请日：2005-06-20
申请人： James Alan Craig , Kelly Wycall Phillips , Narasimha K. Nayak
发明人： James Alan Craig , Kelly Wycall Phillips , Narasimha K. Nayak
IPC分类号： H04L12/66 , H04J3/16 , H04J3/22 , H04M1/64 , H04M7/00
CPC分类号： H04L29/06027 , H04L65/1009 , H04L65/1026 , H04L65/103 , H04L65/1036 , H04L65/104 , H04L65/608 , H04L65/80 , H04M3/533 , H04M3/53333 , H04M3/58
摘要： An IP telephony gateway and a user interface resource enable a subscriber to place an outgoing call according to the voice over IP (H.323) protocol to a destination party from a user interface session of an intelligent dial tone service such as voice activated dialing, and resume the user interface session upon completion of the outgoing call with the destination party. The IP telephony gateway establishes a user interface session for the subscriber with the user interface resource across a first Real Time Protocol (RTP) data stream. The user interface resource initiates a second RTP data stream to a destination party in response to reception of a prescribed command from the subscriber. Although an RTP bridge connecting the first and second RTP data streams can be maintained by the user interface resource, the user interface resource may also use the Empty Capability Set feature in the H.323 standard to cause the IP telephony gateway to close the first and second RTP data streams to the user interface resource. The user interface resource then issues Non-Empty Capability Set messages to the IP telephony gateway for the first and second RTP data streams, causing the IP telephony gateway to internally bridge the first and second RTP data streams. The user interface resource monitors connections between the subscriber and the destination party, and upon detecting a disconnect by the destination party causes the IP telephony gateway to resume the user interface session, by repeating the sequence of sending Empty Capability Set and Non-Empty Capability Set messages to the IP telephony gateway to break down the bridge and re-establish the connection between the subscriber and the user interface resource.
摘要翻译： IP电话网关和用户接口资源使订户能够根据IP语音（H.323）协议将出呼叫从智能拨号音服务的用户接口会话（例如语音激活拨号）发送到目的地，并且在与目标方进行呼出完成时恢复用户界面会话。 IP电话网关通过第一实时协议（RTP）数据流为用户建立与用户接口资源的用户接口会话。响应于从订户接收到规定的命令，用户接口资源向目的地发起第二RTP数据流。虽然连接第一和第二RTP数据流的RTP桥可以由用户界面资源来维护，但是用户接口资源也可以使用H.323标准中的空能力集特征来使得IP电话网关关闭第一和第第二RTP数据流到用户界面资源。然后，用户接口资源向第一和第二RTP数据流的IP电话网关发出非空能力设置消息，导致IP电话网关内部桥接第一和第二RTP数据流。用户接口资源监视用户和目的方之间的连接，并且在检测到目的方之间的断开连接时，通过重复发送空能力集和非空能力集的顺序使得IP电话网关恢复用户界面会话消息到IP电话网关，以分解网桥并重新建立用户和用户界面资源之间的连接。

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