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1. 发明申请

US20110270997A1 Deferred Invocation of Communication Services 有权
标题翻译：延迟调用通信服务
公开(公告)号：US20110270997A1
公开(公告)日：2011-11-03
申请号：US13179693
申请日：2011-07-11
申请人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
发明人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
IPC分类号： G06F15/16
CPC分类号： H04L65/1016 , G06F9/542 , H04L65/1096
摘要： In one embodiment, a network device determines one or more conditions for invoking one or more real applications to the network device for a session. This determination may be made at the initiation of the session, such as when a SIP INVITE message is received. The one or more conditions allow real applications to be invoked when a future event satisfies the condition. When it is determined that a condition is satisfied, a real application associated with the condition is then invoked. Accordingly, conditions may be set for real applications that may be tested against future events that have not yet occurred. This allows deferred invocation of real applications. Accordingly, if real applications are not needed for a session, then they are not invoked. But, when a real application is needed, it can be invoked.
摘要翻译：在一个实施例中，网络设备确定用于向会话的网络设备调用一个或多个实际应用的一个或多个条件。可以在会话开始时进行该确定，例如当接收到SIP INVITE消息时。一个或多个条件允许在将来事件满足条件时调用实际应用程序。当确定满足条件时，然后调用与条件相关联的实际应用。因此，可以针对可能针对尚未发生的未来事件进行测试的实际应用设置条件。这允许延迟调用真实的应用程序。因此，如果会话不需要实际的应用程序，则不会调用它们。但是，当需要真正的应用程序时，可以调用它。

2. 发明授权

US07979523B2 Deferred invocation of communication services 有权
标题翻译：延迟调用通信服务
公开(公告)号：US07979523B2
公开(公告)日：2011-07-12
申请号：US11745781
申请日：2007-05-08
申请人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
发明人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
IPC分类号： G06F15/173 , G06F3/00 , G06F11/00
CPC分类号： H04L65/1016 , G06F9/542 , H04L65/1096
摘要： In one embodiment, a network device determines one or more conditions for invoking one or more real applications to the network device for a session. This determination may be made at the initiation of the session, such as when a SIP INVITE message is received. The one or more conditions allow real applications to be invoked when a future event satisfies the condition. When it is determined that a condition is satisfied, a real application associated with the condition is then invoked. Accordingly, conditions may be set for real applications that may be tested against future events that have not yet occurred. This allows deferred invocation of real applications. Accordingly, if real applications are not needed for a session, then they are not invoked. But, when a real application is needed, it can be invoked.
摘要翻译：在一个实施例中，网络设备确定用于向会话的网络设备调用一个或多个实际应用的一个或多个条件。可以在会话开始时进行该确定，例如当接收到SIP INVITE消息时。一个或多个条件允许在将来事件满足条件时调用实际应用程序。当确定满足条件时，然后调用与条件相关联的实际应用。因此，可以针对可能针对尚未发生的未来事件进行测试的实际应用设置条件。这允许延迟调用真实的应用程序。因此，如果会话不需要实际的应用程序，则不会调用它们。但是，当需要真正的应用程序时，可以调用它。

3. 发明授权

US08341273B2 Deferred invocation of communication services 有权
标题翻译：延迟调用通信服务
公开(公告)号：US08341273B2
公开(公告)日：2012-12-25
申请号：US13179693
申请日：2011-07-11
申请人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
发明人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
IPC分类号： G06F15/16 , G06F15/173 , H04L12/16
CPC分类号： H04L65/1016 , G06F9/542 , H04L65/1096
摘要： In one embodiment, a network device determines one or more conditions for invoking one or more real applications to the network device for a session. This determination may be made at the initiation of the session, such as when a SIP INVITE message is received. The one or more conditions allow real applications to be invoked when a future event satisfies the condition. When it is determined that a condition is satisfied, a real application associated with the condition is then invoked. Accordingly, conditions may be set for real applications that may be tested against future events that have not yet occurred. This allows deferred invocation of real applications. Accordingly, if real applications are not needed for a session, then they are not invoked. But, when a real application is needed, it can be invoked.
摘要翻译：在一个实施例中，网络设备确定用于向会话的网络设备调用一个或多个实际应用的一个或多个条件。可以在会话开始时进行该确定，例如当接收到SIP INVITE消息时。一个或多个条件允许在将来事件满足条件时调用实际应用程序。当确定满足条件时，然后调用与条件相关联的实际应用。因此，可以针对可能针对尚未发生的未来事件进行测试的实际应用设置条件。这允许延迟调用真实的应用程序。因此，如果会话不需要实际的应用程序，则不会调用它们。但是，当需要真正的应用程序时，可以调用它。

4. 发明申请

US20080281957A1 DEFERRED INVOCATION OF COMMUNICATION SERVICES 有权
标题翻译：递交通信服务协议
公开(公告)号：US20080281957A1
公开(公告)日：2008-11-13
申请号：US11745781
申请日：2007-05-08
申请人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
发明人： David Ladd , Narasimha R. Rachumallu , Aeryung Moon , Leo Nieuwesteeg
IPC分类号： G06F15/173 , G06F9/46
CPC分类号： H04L65/1016 , G06F9/542 , H04L65/1096
摘要： In one embodiment, a network device determines one or more conditions for invoking one or more real applications to the network device for a session. This determination may be made at the initiation of the session, such as when a SIP INVITE message is received. The one or more conditions allow real applications to be invoked when a future event satisfies the condition. When it is determined that a condition is satisfied, a real application associated with the condition is then invoked. Accordingly, conditions may be set for real applications that may be tested against future events that have not yet occurred. This allows deferred invocation of real applications. Accordingly, if real applications are not needed for a session, then they are not invoked. But, when a real application is needed, it can be invoked.
摘要翻译：在一个实施例中，网络设备确定用于向会话的网络设备调用一个或多个实际应用的一个或多个条件。可以在会话开始时进行该确定，例如当接收到SIP INVITE消息时。一个或多个条件允许在将来事件满足条件时调用实际应用程序。当确定满足条件时，然后调用与条件相关联的实际应用。因此，可以针对可能针对尚未发生的未来事件进行测试的实际应用设置条件。这允许延迟调用真实的应用程序。因此，如果会话不需要实际的应用程序，则不会调用它们。但是，当需要真正的应用程序时，可以调用它。

5. 发明授权

US07539179B1 Scalable packet-switched call control signaling 有权
标题翻译：可扩展的分组交换呼叫控制信令
公开(公告)号：US07539179B1
公开(公告)日：2009-05-26
申请号：US09409922
申请日：1999-09-30
申请人： Randall Baird , Leo Nieuwesteeg
发明人： Randall Baird , Leo Nieuwesteeg
IPC分类号： H04L12/66
CPC分类号： H04L65/1009 , H04L65/104 , H04L65/1069 , H04M3/367 , H04M7/1255 , H04M7/1265
摘要： A packet-switched communication system, method for controlling packet-switched calls over such a system, and components of the system are disclosed. In one embodiment, the system provides a scalable implementation for handling H.323 calls. The H.323-required TCP signaling terminations are handled by distributed signaling gateways. Each signaling gateway backhauls the signaling content from these terminations to a central media gateway controller for processing. The media gateway controller uses an efficient gateway control protocol to control media gateways and/or media proxies that actually handle the media bearer channels associated with the backhauled H.323 signaling connections. The H.323 complexity can thus be concentrated in the media gateway controller, without requiring full H.323 functionality at the distributed gateways. Also, because the TCP signaling connections are remote from the media gateway controller, H.323 signaling redundancy can be provided at the media gateway controller.
摘要翻译：公开了一种分组交换通信系统，用于在这种系统上控制分组交换呼叫的方法以及该系统的组件。在一个实施例中，系统提供用于处理H.323呼叫的可伸缩实现。 H.323所需的TCP信令终端由分布式信令网关处理。每个信令网关将信令内容从这些终端回传到中央媒体网关控制器进行处理。媒体网关控制器使用有效的网关控制协议来控制实际处理与回程的H.323信令连接相关联的媒体承载信道的媒体网关和/或媒体代理。因此，H.323复杂度可以集中在媒体网关控制器中，而不需要在分布式网关上的完整H.323功能。此外，由于TCP信令连接远离媒体网关控制器，所以可以在媒体网关控制器处提供H.323信令冗余。

6. 发明申请

US20070041327A1 Multicast heartbeat signaling 审中-公开
标题翻译：组播心跳信令
公开(公告)号：US20070041327A1
公开(公告)日：2007-02-22
申请号：US11204964
申请日：2005-08-16
申请人： William Foster , Leo Nieuwesteeg , Flemming Andreasen , David McDaniel
发明人： William Foster , Leo Nieuwesteeg , Flemming Andreasen , David McDaniel
IPC分类号： G06F11/00 , H04J3/14
CPC分类号： H04L65/1043 , H04L12/18 , H04L67/14 , H04L67/145 , H04L69/40
摘要： A mechanism that provides for communication of heartbeat signals from servers (call agents) to clients (gateways) in a packet telephony network environment. Clients listen for receipt of multicast heartbeats from any of the servers that may be part of a multicast group. A client assigned to a particular server for control messaging, upon failure to receive a response to a message sent to the assigned server and failure to receive a heartbeat from the assigned server, may select a second server from among the servers and re-send the message to the second server. Without receipt of heartbeat signals, the client defaults to a normal retry behavior for re-sending the message first to the assigned server a number of times before attempting to re-send the message to the second server. With receipt of the heartbeat from the second server, the client adopts an aggressive retry behavior by re-sending the message to the assigned server a lesser number of retries before attempting to re-send the message to the second server. The clients use the multicast heartbeats as a hint, allowing them to switch to the more aggressive retry behavior and consequently reduce the time to re-associate with a new server and re-establish a new security association (if IPsec is used), resulting in a drastic reduction in service delay due to server failures.
摘要翻译：一种机制，用于在分组电话网络环境中提供从服务器（呼叫代理）到客户端（网关）的心跳信号的通信。客户端收听来自任何可能是多播组一部分的服务器的组播心跳信号。分配给特定服务器以用于控制消息收发的客户端，在未能接收到发送给所分配的服务器的消息的响应以及未能从所分配的服务器接收到心跳的响应时，可以从服务器中选择第二服务器并重新发送消息到第二台服务器。在没有收到心跳信号的情况下，客户端默认为正常的重试行为，以便在尝试将消息重新发送到第二个服务器之前先将消息首先发送到分配的服务器。在从第二台服务器接收到心跳信号之后，客户端在尝试将消息重新发送到第二个服务器之前，通过将消息重新发送到分配的服务器进行较少数量的重试，从而采取积极的重试行为。客户端使用组播心跳作为提示，允许他们切换到更积极的重试行为，从而减少与新服务器重新关联的时间，并重新建立新的安全关联（如果使用IPsec），导致由于服务器故障导致的服务延迟急剧减少。

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