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1. 发明授权

US09942407B2 Prevention of call loops for wholesale VoIP traffic termination 有权
公开(公告)号：US09942407B2
公开(公告)日：2018-04-10
申请号：US14340188
申请日：2014-07-24
申请人： Vladimir Smelyansky , Victor Grinberg
发明人： Vladimir Smelyansky , Victor Grinberg
IPC分类号： H04M3/54 , H04M7/00
CPC分类号： H04M3/545 , H04M7/0084 , H04M2201/18
摘要： A method, system, and computer program product for providing call loop detection and prevention for VoIP SIP based wholesale traffic termination when multiple carriers are involved in handling the same phone call is provided. A method of detecting a call loop includes receiving an originated call, determining whether an origination number of the originated call is a valid phone number, when the origination phone number is invalid, determining a number of calls in a Provisional State with an invalid origination number and the same destination number that were started during a time interval, when the origination phone number is valid, determining a number of calls with the same origination number and the same destination number that were started, but not answered, during the time interval, and when the number of calls per time interval exceeds a threshold for the number of calls, determining that a call loop has been detected.

2. 发明申请

US20140160993A1 LOOP CONDITION PREVENTION AT INTERNETWORK INTERFACE BOUNDARY 有权
标题翻译：互联接口界限预防环境条件
公开(公告)号：US20140160993A1
公开(公告)日：2014-06-12
申请号：US14181420
申请日：2014-02-14
申请人： GENBAND US LLC
发明人： Xuewen Li , Carroll Louise Gray-Preston , James Angus McEachem
IPC分类号： H04M3/54
CPC分类号： H04M3/545 , H04M7/127
摘要： The present invention provides a solution to maximize the chance of completion for an ISUP to SIP direction call by enabling a bigger factor for converting ISUP hop counter to SIP Max-Forwards value than the reverse direction thus enabling more hops in the SIP network. Enabling a bigger factor for ISUP to SIP direction can cause loops without special considerations. This invention provides an algorithm that prevents a “loop condition” that can arise at the interface boundary of two telephone networks, known by their standard names 1SUP and SIP networks. The present invention solves the “loop condition” problem by adjusting the Hop Counter and Max-Forward parameter values in a predetermined manner such that the adjusted parameter values break the cycle of providing the same parameter values between networks at the network boundary for an uncompleted connection, or break an endless “loop condition”.
摘要翻译：本发明提供一种解决方案，通过使ISUP跳计数器能够比反向方向更高的SIP Max-Forwards值来实现ISUP到SIP方向呼叫的最大化，从而使得SIP网络中的跳数更多。启用ISUP到SIP方向的更大因素可能导致循环而没有特殊考虑。本发明提供一种防止在其标准名称为1SUP和SIP网络已知的两个电话网络的接口边界处可能出现的“环路状况”的算法。本发明通过以预定的方式调整跳频计数器和最大转发参数值来解决“循环条件”问题，使得经调整的参数值破坏在网络边界处的网络之间为未完成连接提供相同参数值的周期，或打破无休止的“循环条件”。

3. 发明授权

US08654759B2 Loop condition prevention at internetwork interface boundary 有权
标题翻译：网络接口边界环路状况预防
公开(公告)号：US08654759B2
公开(公告)日：2014-02-18
申请号：US13131590
申请日：2009-12-01
申请人： Xuewen Li , Carroll Louise Gray-Preston , James McEachern
发明人： Xuewen Li , Carroll Louise Gray-Preston , James McEachern
IPC分类号： H04L12/66 , H04J3/16
CPC分类号： H04M3/545 , H04M7/127
摘要： The present invention provides a solution to maximize the chance of completion for an ISUP to SIP direction call by enabling a bigger factor for converting ISUP hop counter to SIP Max-Forwards value than the reverse direction thus enabling more hops in the SIP network. Enabling a bigger factor for ISUP to SIP direction can cause loops without special considerations. This invention provides an algorithm that prevents a “loop condition” that can arise at the interface boundary of two telephone networks, known by their standard names ISUP and SIP networks. The present invention solves the “loop condition” problem by adjusting the Hop Counter and Max-Forward parameter values in a predetermined manner such that the adjusted parameter values break the cycle of providing the same parameter values between networks at the network boundary for an uncompleted connection, or break an endless “loop condition”.
摘要翻译：本发明提供一种解决方案，通过使ISUP跳计数器能够比反向方向更高的SIP Max-Forwards值来实现ISUP到SIP方向呼叫的最大化，从而使得SIP网络中的跳数更多。启用ISUP到SIP方向的更大因素可能导致循环而没有特殊考虑。本发明提供一种防止在其标准名称ISUP和SIP网络已知的两个电话网络的接口边界处可能出现的“环路状况”的算法。本发明通过以预定的方式调整跳频计数器和最大转发参数值来解决“循环条件”问题，使得经调整的参数值破坏在网络边界处的网络之间为未完成连接提供相同参数值的周期，或打破无休止的“循环条件”。

4. 发明授权

US08090091B2 Network element routing service 有权
标题翻译：网元路由服务
公开(公告)号：US08090091B2
公开(公告)日：2012-01-03
申请号：US12617219
申请日：2009-11-12
申请人： Gayle R. Ekstrom
发明人： Gayle R. Ekstrom
IPC分类号： H04M7/00 , H04M3/42
CPC分类号： H04Q3/66 , H04M3/42263 , H04M3/545 , H04Q3/0029
摘要： Systems and methods for providing a call to a destination address are disclosed. Generally a first network element is queried regarding treatment of a call to a destination address. The call is then routed to the destination address when the first network element determines, based on an originating destination address associated with the call, that the call has been previously treated at a second network element.
摘要翻译：公开了提供对目的地址的呼叫的系统和方法。通常询问关于对目的地地址的呼叫的处理的第一网络元件。然后当第一网络元件基于与该呼叫相关联的发起目的地地址确定该呼叫先前已经在第二网络元件处理时，呼叫被路由到目的地地址。

5. 发明申请

US20110228766A1 LOOP CONDITION PREVENTION AT INTERNETWORK INTERFACE BOUNDARY 有权
标题翻译：互联接口界限预防环境条件
公开(公告)号：US20110228766A1
公开(公告)日：2011-09-22
申请号：US13131590
申请日：2009-12-01
申请人： Xuewen Li , Carroll Gray-Preson , James Mceachern
发明人： Xuewen Li , Carroll Gray-Preson , James Mceachern
IPC分类号： H04L12/66
CPC分类号： H04M3/545 , H04M7/127
摘要： The present invention provides a solution to maximize the chance of completion for an ISUP to SIP direction call by enabling a bigger factor for converting ISUP hop counter to SIP Max-Forwards value than the reverse direction thus enabling more hops in the SIP network. Enabling a bigger factor for ISUP to SIP direction can cause loops without special considerations. This invention provides an algorithm that prevents a “loop condition” that can arise at the interface boundary of two telephone networks, known by their standard names ISUP and SIP networks. The present invention solves the “loop condition” problem by adjusting the Hop Counter and Max-Forward parameter values in a predetermined manner such that the adjusted parameter values break the cycle of providing the same parameter values between networks at the network boundary for an uncompleted connection, or break an endless “loop condition”.
摘要翻译：本发明提供一种解决方案，通过使ISUP跳计数器能够比反向方向更高的SIP Max-Forwards值来实现ISUP到SIP方向呼叫的最大化，从而使得SIP网络中的跳数更多。启用ISUP到SIP方向的更大因素可能导致循环而没有特殊考虑。本发明提供一种防止在其标准名称ISUP和SIP网络已知的两个电话网络的接口边界处可能出现的“环路状况”的算法。本发明通过以预定的方式调整跳频计数器和最大转发参数值来解决“循环条件”问题，使得经调整的参数值破坏在网络边界处的网络之间为未完成连接提供相同参数值的周期，或打破无休止的“循环条件”。

6. 发明申请

US20110045805A1 TERMINATED CALL CONTROL FOR ROAMING CELLULAR TELEPHONY 有权
标题翻译：终止呼叫控制，用于漫游蜂窝电话
公开(公告)号：US20110045805A1
公开(公告)日：2011-02-24
申请号：US12916669
申请日：2010-11-01
申请人： Shany ELKARAT , Kobi Fester , Noam Danon , Shai Dagan
发明人： Shany ELKARAT , Kobi Fester , Noam Danon , Shai Dagan
IPC分类号： H04M11/10
CPC分类号： H04W4/16 , H04M3/48 , H04M3/53308 , H04M3/537 , H04M3/545 , H04M2203/4536 , H04M2207/18 , H04W4/12 , H04W8/06 , H04W8/082 , H04W76/20 , H04W88/16
摘要： A method, system and gateway for control of calls unanswered by a roaming user roaming on a roaming network, comprises monitoring outward bound calls to roaming users, monitoring subsequent inward forwarding of those calls terminated without answering at said roaming users, and matching between the outward bound and inward forwarding. Matching confers control of processing of the terminated call in two ways. One is that it allows call details, typically lost over International networks, to be obtained regarding the terminated call. Secondly, it allows the originating call to be connected directly to the voicemail or other forwarding destination without involving any International connections.
摘要翻译：用于控制在漫游网络上漫游的漫游用户未应答的呼叫的方法，系统和网关包括：监视对漫游用户的向外绑定的呼叫，监视终止的那些呼叫的后续向内转发，而不在所述漫游用户处应答，以及向外绑定和向内转发。匹配赋予对终止呼叫处理的控制有两种方式。一个是它允许在终止的呼叫中获得通常在国际网络上丢失的呼叫详细信息。其次，它允许始发呼叫直接连接到语音邮件或其他转发目的地，而不涉及任何国际连接。

7. 发明申请

US20080056478A1 METHOD AND APPARATUS OF DETECTION OF INTER-CARRIER LOOPING 有权
标题翻译：检测载波间耦合的方法和装置
公开(公告)号：US20080056478A1
公开(公告)日：2008-03-06
申请号：US11930317
申请日：2007-10-31
申请人： Phu HUYNH
发明人： Phu HUYNH
IPC分类号： H04M7/00
CPC分类号： H04Q3/0025 , H04M3/545 , H04M15/41 , H04M15/50 , H04M15/53 , H04M2215/0164 , H04M2215/0172 , H04M2215/52
摘要： Method and apparatus for detecting inter-carrier call looping. In one embodiment, the present invention is a method that can be used to reliably detect inter-network routing loops and kill associated calls using a modified ISUP Hop Counter parameter to be sent across network boundaries. Detection of inter-network loops prevents routing loops, those involving two or more carrier networks, from generating additional signaling traffic that can aggregate to overload signaling networks.
摘要翻译：用于检测载波间呼叫循环的方法和装置。在一个实施例中，本发明是一种可以用于可靠地检测网络间路由环路并使用经过网络边界发送的经修改的ISUP Hop Counter参数来杀死相关呼叫的方法。网络间环路的检测阻止了涉及两个或更多个运营商网络的路由环路产生可以聚合到过载信令网络的附加信令业务。

8. 发明授权

US07142657B2 Method and system for preventing call forward looping 有权
标题翻译：防止通话循环的方法和系统
公开(公告)号：US07142657B2
公开(公告)日：2006-11-28
申请号：US10259896
申请日：2002-09-27
申请人： Charles E. Woodson , Baoquan Zhang , Thomas M. Sladek
发明人： Charles E. Woodson , Baoquan Zhang , Thomas M. Sladek
IPC分类号： H04M3/42 , H04M7/00
CPC分类号： H04M3/545 , H04M2207/12 , H04Q3/0029
摘要： In a telecommunications network having switching points (such as SSPs and/or MSCs) controlled by a control point (such as an SCP), the switching points are provisioned to send messages to the control point when they encounter trigger conditions during processing of a call to a called station that has a forward-to number. When the control point receives the messages, it determines whether a loop condition exists, i.e., whether the call has already been forwarded from the forward-to number. If the control point determines that a loop condition exists, the control point instructs the switching point so as not to forward the call to the forward-to number.
摘要翻译：在具有由控制点（例如SCP）控制的切换点（例如SSP和/或MSC）的电信网络中，提供切换点在处理呼叫期间遇到触发条件时向控制点发送消息到具有前向号码的被叫站。当控制点接收到消息时，它确定是否存在循环条件，即，呼叫是否已经从前向号转发。如果控制点确定存在循环条件，则控制点指示切换点，以便不将呼叫转发到前向号码。

9. 发明授权

US07133516B2 Prevention of call forwarding loops in communication networks 有权
标题翻译：防止通信网络中的呼叫转移环路
公开(公告)号：US07133516B2
公开(公告)日：2006-11-07
申请号：US10720858
申请日：2003-11-24
申请人： Anatoly S. Belkin , Alex P. Hirsbrunner , Jennifer A. Pierce , Jheroen P Dorenbosch
发明人： Anatoly S. Belkin , Alex P. Hirsbrunner , Jennifer A. Pierce , Jheroen P Dorenbosch
IPC分类号： H04M3/42
CPC分类号： H04M3/54 , H04M3/53308 , H04M3/545
摘要： Circular call forwarding loops are prevented for a communications unit (12) capable of operating in a first communications network (14) and a second communications network (16) within a loosely coupled network (16), and respectively having a first network number and a second network number, as well as a first network voice mail. A call directed to the first network number (50) of the communications unit is forwarded to the second network number (52) of the communications unit when the communications unit is not operating in the first network. A first network voice mail number (P3) may be associated with calls so that calls are forwarded directly to the first network voice mail (56) when received again at the first network (54). Alternatively, if a call is subsequently received from the second communications network, and data of the subsequently received call matches data of the initial call, or if call forwarding indicia associated with the forwarded call is also associated with the subsequent call, the subsequent call is then forwarded to the first network voice mail of the communications unit.
摘要翻译：对于能够在松散耦合网络（16）内的第一通信网络（14）和第二通信网络（16）中运行的通信单元（12），并且分别具有第一网络号码和第二个网络号码，以及第一个网络语音邮件。当通信单元不在第一网络中操作时，定向到通信单元的第一网络号码（50）的呼叫被转发到通信单元的第二网络号码（52）。第一网络语音邮件号码（P 3）可以与呼叫相关联，使得当在第一网络（54）再次接收时，呼叫被直接转发到第一网络语音邮件（56）。或者，如果随后从第二通信网络接收到呼叫，并且随后接收到的呼叫的数据与初始呼叫的数据匹配，或者如果与转发呼叫相关联的呼叫转移标记也与后续呼叫相关联，则后续呼叫然后转发到通信单元的第一个网络语音邮件。

10. 发明申请

US20060067359A1 Detection of looping communication channels 有权
标题翻译：检测循环通信信道
公开(公告)号：US20060067359A1
公开(公告)日：2006-03-30
申请号：US10953643
申请日：2004-09-29
申请人： Sandra Abramson , Frank Boyle , David Chavez , C. McMillen , Stephen Milton
发明人： Sandra Abramson , Frank Boyle , David Chavez , C. McMillen , Stephen Milton
IPC分类号： H04J15/00
CPC分类号： H04M3/54 , H04M3/545
摘要： A method is disclosed that enables a data-processing system, such as a private branch exchange, to detect and disconnect looping communication channels, without some of the costs, disadvantages, and limitations of techniques in the prior art. The illustrative embodiment of the present invention provides detection of looping communication channels at the point where the loop begins. By detecting at the beginning point of the loop, the illustrative embodiment has the advantage of de-allocating call resources sooner than some techniques in the prior art. This enables the call resources to be reused faster for subsequent incoming and outgoing calls. Faster reuse is advantageous because it can lower the call blocking characteristic, which is related to the probability of a new call not being set up due to lack of communication channel resources.
摘要翻译：公开了一种使诸如专用小交换机之类的数据处理系统能够检测和断开循环通信信道的方法，而无需现有技术中的一些成本，缺点和技术限制。本发明的说明性实施例提供了在循环开始点的环路通信信道的检测。通过在循环的起始点检测，说明性实施例具有比现有技术中的某些技术更快地去分配呼叫资源的优点。这使呼叫资源能够更快地重新用于后续的来电和去电。更快的重用是有利的，因为它可以降低呼叫阻塞特性，这与由于缺少通信信道资源而不建立新呼叫的概率有关。

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