Telecommunications call-processing arrangement
    31.
    发明公开
    Telecommunications call-processing arrangement 失效
    VerarbeitungsanordnungfürFernmeldeanrufe。

    公开(公告)号:EP0540256A2

    公开(公告)日:1993-05-05

    申请号:EP92309707.5

    申请日:1992-10-23

    Applicant: AT&T Corp.

    CPC classification number: H04Q3/47 H04Q3/0029 H04Q3/54533 H04Q2213/13541

    Abstract: A call-processing arrangement (200) views a network numbering plan as a language in the mathematical/computer science sense and takes a lexicographic approach to call processing. Numbering plan syntax is defined by data in tree data structures (320, 330), and numbering plan grammar is defined by data in matrix data structures (400, 410). The data structures are used by numbering plan-independent functions to determine the meaning of call-associated digit strings and to specify the treatment (e.g., routing, features,) to be given to the call based on that meaning. A string-identification function (340) applies collected digits to the trees and matrices to find leafs (312) that define digit strings that make up the number. A string-action function (341) uses the definitions in the found leafs to form a call- route-specifying or call-feature-specifying index (254) for the call. A generalized route- selection function (343) uses a set of first call characteristics including the route-or-feature-specifying index to select from multi-dimensional matrices (1200, 1202) either a feature module (205) to be invoked or a routing-pattern number (1201), and in the latter case uses a set of second call characteristics including the routing-pattern number to select a route preference (1701) from routing pattern-preference tables (1300). A digit-sending function (344) uses the route preference to select an entry of digit-sending information (1701) from a sending table (1700) and uses the sending information to establish a call path and to outpulse digits. A digit modification function (343) and a table (1000) of digit modifications are also provided for purposes of number conversion, such as between different network numbering plans when more than one is defined.

    Abstract translation: 呼叫处理装置(200)将网络编号计划视为数学/计算机科学意义上的语言,并采用词典方法进行呼叫处理。 编号方案语法由树数据结构(320,330)中的数据定义,编号方案语法由矩阵数据结构(400,410)中的数据定义。 数据结构通过编号与计划无关的函数来使用,以确定呼叫相关数字串的含义,并且基于该含义来指定给予呼叫的处理(例如,路由,特征)。 字符串识别功能(340)将收集的数字应用于树和矩阵,以找到定义数字串组成的数字的叶(312)。 字符串动作功能(341)使用发现的叶中的定义来形成呼叫的呼叫路由指定或呼叫特征指定索引(254)。 广义路由选择功能(343)使用包括路由或特征指定索引的一组第一呼叫特性来从多维矩阵(1200,1202)中选择要被调用的特征模块(205)或 路由模式号码(1201),并且在后一种情况下使用包括路由模式号码的一组第二呼叫特性来从路由模式偏好表(1300)中选择路由优先级(1701)。 数字发送功能(344)使用路由优先级从发送表(1700)中选择数字发送信息(1701)的条目,并使用发送信息建立呼叫路径和外拨数字。 数字修改功能(343)和数字修改表(1000)也用于数字转换的目的,例如在定义多于一个的不同网络编号计划之间时。

    Method of rerouting telecommunications traffic
    34.
    发明公开
    Method of rerouting telecommunications traffic 失效
    Verfahren zur Umleitung von Telekommunikationsverkehr。

    公开(公告)号:EP0520688A2

    公开(公告)日:1992-12-30

    申请号:EP92305586.7

    申请日:1992-06-18

    Applicant: AT&T Corp.

    Abstract: This invention relates to a method and apparatus for establishing connections over a public switched telephone network to a customer whose telephone number is in a block associated, for routing purposes, with a first telephone switching system (40), but who is actually served by a second telephone switching system (50). The method is desirable in order to serve customers who need the advanced functions of a digital switching system, who are currently served by an analog switching system (40), and do not wish to have their telephone number changed when they switch to being served by the digital switching system (50). In the invention, a centralized database (90) is queried to find the identity of the switch serving the called customer. The database retums a routing index (95) for routing the call to that switch.

    Abstract translation: 本发明涉及一种方法和装置,用于通过公共交换电话网建立与电话号码在与第一电话交换系统(40)进行路由目的相关联的块中的用户的连接,但实际上由 第二电话交换系统(50)。 该方法是期望的,以便为需要由模拟交换系统(40)服务的数字交换系统的高级功能的客户提供服务,并且当他们切换到被服务的时候不想改变其电话号码 数字切换系统(50)。 在本发明中,查询集中式数据库(90)以查找服务于被叫客户的交换机的标识。 数据库重新引用路由索引(95),用于将呼叫路由到该交换机。

    Method of rerouting telecommunications traffic
    35.
    发明公开
    Method of rerouting telecommunications traffic 失效
    Verfahren zur Leitwegumlenkung von Fernmeldeverkehr。

    公开(公告)号:EP0510861A2

    公开(公告)日:1992-10-28

    申请号:EP92303311.2

    申请日:1992-04-14

    Applicant: AT&T Corp.

    Abstract: 5 n7 This invention relates to a method of establishing connections over a public switched telephone network to a customer whose telephone number is in a block associated, for routing purposes, with a first telephone switching system, but who is actually served by a second telephone switching system. The facility for carrying out this method is desirable in order to serve customers who need the advanced functions of a digital switching system, who are currently served by an analog switching system, and do not wish to have their telephone number changed when they switch to being served by the digital switching system. In accordance with the invention, a common channel signaling initial address message is sent to the first system. The first system translates the telephone number of that initial address message and finds that the customer for that telephone number is now served by a second switch. The first switch then sends a release message containing the identification of the second switch back to the source of the initial address message. The source of the first initial address message then sends a second initial address message to the identified second switch and the call connection can now be established to the customer served by the second switch. During the time the customer is being moved from the first switch to the second switch, one of the two returns a "temporarily out of service" type of announcement.

    Abstract translation: 本发明涉及一种通过公共交换电话网络建立与电话号码在与第一电话交换系统相关联但与实际由第二电话交换系统服务的用户路由相关的块的用户的连接的方法。 为了服务于需要模拟切换系统服务的数字交换系统的高级功能的客户,为了服务于不需要改变电话号码的用户 由数字交换系统服务。 根据本发明,公共信道信令初始地址消息被发送到第一系统。 第一个系统翻译该初始地址消息的电话号码,并发现该电话号码的客户现在由第二个交换机提供服务。 然后,第一交换机将包含第二交换机的标识的释放消息发送回初始地址消息的源。 然后,第一初始地址消息的源向所识别的第二交换机发送第二初始地址消息,并且现在可以向由第二交换机服务的客户建立呼叫连接。 在客户从第一交换机移动到第二交换机的时间期间,两者之一返回“临时停止服务”类型的通知。

    Real-time decentralized network traffic management using a parallel algorithm
    36.
    发明公开
    Real-time decentralized network traffic management using a parallel algorithm 失效
    Realzeit dezentralisierte Netzwerkverkehrsverwaltung unter Verwendung eines paralelles Algorithmus。

    公开(公告)号:EP0496061A2

    公开(公告)日:1992-07-29

    申请号:EP91120435.2

    申请日:1991-11-28

    Abstract: A decentralized, state dependent access-control and routing strategy for real-time control of circuit switched networks. To decentralize the traffic control tasks, we partition the network into subnets and assign a specific traffic controller to each one. The traffic controllers obtain periodic (approximately every 5 minutes) subnet measurements and compute the optimal traffic control policy of the subnet through an iterative and parallel dialog with the other controllers. Each controller implements the new control policy within its subnet until the next measurement epoch, thereby allowing decentralized call handling. In the formulation of the joint access-control and routing problem, we allocate the incoming demand (for a given period), the optimal strategy to maximize the predicted minimum (over all network Trunk Groups) Trunk Group residual capacity. Secondly, when the projected demand can not be accommodated through this strategy, the optimal strategy rejects the extra demand at source, in an "equitable" manner. The mathematical formulation of the above routing and access-control objectives leads to an Equilibrium Programming Problem (EPP). The EPP formulation is decomposed into a number of subproblems and solved--in parallel--by the inter-communicating subnet controllers, thereby satisfying real-time control requirements. The ensemble of the subproblem solutions forms the network-wide (globally) optimal traffic management strategy for the upcoming period.

    Abstract translation: 一种用于实时控制电路交换网络的分散式,状态相关的访问控制和路由策略。 为了分散流量控制任务,我们将网络划分为子网,并为每个子网分配特定的流量控制器。 流量控制器通过与其他控制器的迭代和并行对话获得周期性(大约每5分钟)子网测量并计算子网的最佳流量控制策略。 每个控制器在其子网内实现新的控制策略,直到下一个测量纪元,从而允许分散式呼叫处理。 在编制联合访问控制和路由问题时,我们分配了进入的需求(给定时间段),最大化最大化策略以最大化所有网络中继组(Trunk Group)的中继群剩余容量。 其次,通过这一策略不能满足预期的需求时,最优策略以“公平”的方式拒绝来源的额外需求。 上述路由和访问控制目标的数学公式导致了平衡编程问题(EPP)。 EPP公式被分解为多个子问题,并通过互通的子网控制器并行解决,从而满足实时控制要求。 子问题解决方案的组合形成了即将到来的全球(全球)最佳交通管理战略。

    Virtual private line service
    37.
    发明公开
    Virtual private line service 失效
    虚拟私人服务

    公开(公告)号:EP0425203A3

    公开(公告)日:1992-05-20

    申请号:EP90311490.8

    申请日:1990-10-19

    Applicant: AT&T Corp.

    Abstract: An effective private line service between predetermined stations (101,103) is provided by means of a public switched network (110). When a calling station (101) goes off-hook, a non-dial able routing number (RN) is identified, either (178) in a database held in the local switch (120) or (176) in a central software-defined network control point (130). This routing number is used to set up a connection between the two stations.

    Arrangement for routing packetized messages
    38.
    发明公开
    Arrangement for routing packetized messages 失效
    Vorrichtung zur Weglenkung von Paketnachrichten。

    公开(公告)号:EP0435448A2

    公开(公告)日:1991-07-03

    申请号:EP90312739.7

    申请日:1990-11-22

    Applicant: AT&T Corp.

    Abstract: In a telecommunication system having a plurality of cooperating exchanges and using a separate signaling network, an existing exchange (101) is replaced by a new exchange (102) by a piecemeal transferring of interexchange trunks (130,140) from the existing exchange to the new exchange and testing the trunks on the new exchange. All signaling messages pertaining to trunks originally resident on the existing exchange are addressed to the existing exchange, are intercepted and are selectively forwarded to the new exchange on the basis of recorded data defining moved to the new exchange. One embodiment uses a point code converter (120) connected between a signal transfer access point (110) for the signaling network and both the old (101) and the new (102) exchange. The converter receives all messages addressed to the existing exchange and transfers the messages to either the old or the new exchange, depending on the present location of the trunk. Messages transmitted from the new exchange to other exchanges of the network are modified by inserting the identity of the old exchange as the source of the message. Another embodiment assigns a pseudo point code (address) to the new exchange and messages addressed to the existing exchange and pertaining to trunk circuits on the new exchange, are modified to include the pseudo point code and are transmitted via the signal transfer point to the new exchange. Messages from the new exchange destined for other exchanges of the network are relayed via the old exchange to the ultimate destination of the message.

    Abstract translation: 在具有多个协作交换和使用单独的信令网络的电信系统中,现有的交换机被新的交换机替换,通过将局部交换中继线从现有的交换机片刻转移到新的交换机并在新的交换机上测试中继线。 所有与原始驻留在现有交换机上的中继有关的所有信令消息都被发送到现有交换机,被拦截,并且基于定义为新交换机的记录数据被选择性地转发到新交换机。 一个实施例使用连接在信令网络的信号传送接入点和旧的和新的交换机之间的点代码转换器。 转换器接收所有发往现有交换机的消息,并根据中继线的当前位置将消息传输到旧交换机或新交换机。 从新交换机发送到网络其他交换机的消息通过插入旧交换机的标识作为消息的来源进行修改。 另一个实施例将伪点码(地址)分配给新交换机,并且寻址到现有交换机并且与新交换机上的中继电路相关的消息被修改为包括伪点码,并且经由信号传送点被发送到新的 交换。 来自网络其他交换机的新交换机的消息通过旧交换机转发到消息的最终目的地。

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