CN101069411A - 基于呼叫始发者位置的voip的紧急呼叫实现 - Google Patents

基于呼叫始发者位置的voip的紧急呼叫实现 Download PDF

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CN101069411A
CN101069411A CNA2005800081510A CN200580008151A CN101069411A CN 101069411 A CN101069411 A CN 101069411A CN A2005800081510 A CNA2005800081510 A CN A2005800081510A CN 200580008151 A CN200580008151 A CN 200580008151A CN 101069411 A CN101069411 A CN 101069411A
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telephone number
call
equipment
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杰弗利·斯特隆
路易斯·霍尔德
格里高利·L·威林森
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Vonage Holdings Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/121—Details of network access arrangements or protocols
    • H04M7/122—Details of network access arrangements or protocols where the PSTN/ISDN access is used as an access to networks other than PSTN/ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/56—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP for VoIP communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8044—Least cost routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8044—Least cost routing
    • H04M15/8055—Selecting cheaper transport technology for a given service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/202—VoIP; Packet switched telephony
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/42—Least cost routing, i.e. provision for selecting the lowest cost tariff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/74—Rating aspects, e.g. rating parameters or tariff determination apects
    • H04M2215/745—Least cost routing, e.g. Automatic or manual, call by call or by preselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/74—Rating aspects, e.g. rating parameters or tariff determination apects
    • H04M2215/745—Least cost routing, e.g. Automatic or manual, call by call or by preselection
    • H04M2215/7464—Select transport technology for a given service, e.g. use for data connection WLAN rather than GSM/UMTS/GPRS or use company's communication network rather than a public network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/523—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing with call distribution or queueing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S379/00—Telephonic communications
    • Y10S379/901—Virtual networks or virtual private networks

Abstract

使从连接到数据网络的电信设备发起的紧急呼叫被完成到适当的公共安全应答点(PSAP)。在本发明的一个实施例中，用于完成紧急呼叫的方法包括：从数据网络上的设备接收呼叫，所述呼叫是为紧急服务预定的，所述设备具有已知物理位置，获得处理用于所述设备的物理位置的紧急呼叫的紧急呼叫中心的电话号码，以及使用所分配的电话号码将呼叫路由到紧急呼叫中心。

Description

基于呼叫始发者位置的VOIP的紧急呼叫实现
相关申请的交叉引用
本申请是2004年2月10日提交的美国专利申请10/774,689的部分继续申请，并且是2004年6月22日提交的美国专利申请10/872,469的延续，将每个上述申请的内容在此完全引入作为参考。
技术领域
本发明涉及实现从连接到数据网络的电话设备发起的紧急呼叫。
背景技术
传统的电话系统包括本地运营商和长途运营商。本地运营商连接给定的本地区域之内的呼叫，而长途运营商承载本地运营商之间的呼叫。来自家庭或者办公室的电话线路直接连接到线路中心，该线路中心通常被称作中心局。中心局具有一个或多个交换机，所述交换机将呼叫从一个目的地路由或指引到另一目的地。
电话号码通常包括区域码和7位数字的电话号码。所述7位数字电话号码包括3位数字的中心局号码和4位数字的中心局扩展(extension)。3位数字中心局号码将呼叫指引到特定的中心局。一旦呼叫到达期望的中心局，4位数字扩展就将呼叫转送到中心局所服务的线路上。区域码通常用于长途电话呼叫，如下面所讨论的。
在小型区域之内的本地电话呼叫通常在单个中心局之内完成。在这种配置中，相同区域之内的呼叫由同一中心局服务。中心局将进入的呼叫连接到目的号码。然而，如果区域较大，则与第二中心局进行通信就会是必需的。两个中心局通常由干线连接，干线是中心局之间的线路。目的地基于所拨打的电话号码从第一中心局接收呼叫，然后将其指引到适当的目的地。
如以上所提到的，每个区域码与特定的一组中心局相对应。当用户拨打区域码和随后的7位数字电话号码时，中心局分析所拨打的号码。如果拨打的号码位于本地传输和访问区域(LATA)之内，则将所述呼叫指引到适当的中心局。LATA或者本地主叫区域，通常是邻近的地理区域。如果拨打的号码在LATA之外，则本地中心局检查其数据库以决定用户选择了哪个长途公司来进行所述呼叫。然后，本地中心局将呼叫交换到连接所述长途电话公司的最近交换机的线路上，该交换机通常称作电话接入站点(POP)。一旦长途公司接收到所述呼叫，长途电话公司就分析电话号码，并经由长途网络将所述呼叫路由到最靠近被叫号码的POP。所述POP将呼叫路由回接近目的电话的本地中心局，然后如上所述完成所述呼叫。
本地和长途电话公司在设备、交换呼叫和维护他们的设备上耗费成本。所有这些成本最终传递到消费者身上。因为本地呼叫涉及一个公司拥有的一个或两个交换台，所以本地电话呼叫的费用通常较低。典型地，消费者支付固定的费用来进行不限次数的本地呼叫。然而，因为长途呼叫被从本地电话公司传送到长途运营商，然后回到本地电话公司，所以长途呼叫的费用高于本地呼叫。通常，长途呼叫按照分钟来计费。然而，费率依据一些因素而变化，所述因素诸如始发和目的号码之间交换机的数量以及税费。例如，国家之间的长途呼叫会比给定国家之内的长途呼叫费用高。
对于能够减少与长途电话呼叫关联的成本的方法和设备，一直存在着持续的需求。一种符合这个需求的解决方案是使用虚拟号码来通过数据网络完成呼叫，如在申请日为2004年2月10日且题为“Methodand Apparatus for Placing a Long Distance Call Based on a VirtualPhone Number”的美国专利申请10/774,689中所描述的那样，所述申请全部在此引入作为参考。然而，伴随这一解决方法产生的问题是紧急呼叫的发起和完成。典型地，这种呼叫通过拨打“911”来发起，基于发起呼叫的物理位置完成于公共安全应答点(PSAP)。在传统的公共交换电话网络(PSTN)中，发起呼叫的物理位置的确定十分简单，这是因为每个位置的电话设备通过硬件线路连到中心局中的交换设备。然而，随着呼叫通过数据网络发起，电话设备通常不直接连接到网络上的呼叫交换和路由设备上。因此，需要一种技术，通过这种技术，从连接到数据网络的电话设备发起的紧急呼叫可以完成到适当的PSAP。
发明内容
本发明提供使从连接到数据网络的电话设备发起的紧急呼叫能完成到适当的公共安全应答点(PSAP)的能力。在本发明的一实施例中，完成紧急呼叫的方法包括：从数据网络上的设备接收呼叫，所述呼叫是为紧急服务预定的，所述设备具有物理位置；获得用于处理用于所述设备的物理位置的紧急呼叫的紧急呼叫中心的电话号码；以及使用所述电话号码将呼叫路由到紧急呼叫中心。
在这一实施例的一方面，呼叫可通过拨打911发起。紧急呼叫中心的电话号码可基于所述设备的电话号码而获得。紧急呼叫中心的电话号码可以是交换电话网络上的物理电话号码。数据网络可包括因特网。
在本发明的一实施例中，连接到数据网络的装置可操作为从数据网络上的设备接收呼叫，所述呼叫为紧急服务而预定，所述设备具有物理位置，所述装置还操作为获得紧急呼叫中心的电话号码，所述紧急呼叫中心处理用于设备的物理位置的紧急呼叫，并且使用所述电话号码将呼叫路由到紧急呼叫中心。
在所述实施例的一方面，所述呼叫可通过拨打911发起。紧急呼叫中心的电话号码可基于设备的电话号码而获得。紧急呼叫中心的电话号码可以是交换电话网络上的物理电话号码。数据网络可包括因特网。
通过下面结合附图进行的描述，本发明的上述和其它目的、特点和优点将变得清楚，在附图中，相同的标号指示相同的部件。
附图说明
图1是示出根据本发明一可选实施例的示例性系统的概述的示图；
图2是示出根据本发明一适应性方面的选择性的示例性系统的概述的示图；
图3是示出本发明另一示例性实施例的示图；
图4是示出本发明另一示例性实施例的示图；
图5是示出本发明另一示例性实施例的示图。
具体实施方式
考虑到上述内容，本发明设法补救上述在传统技术中发现的需要中的至少一个。
越来越多的电话公司正使用诸如因特网的计算机网络来将长途呼叫从一个目的地传送到另一目的地。典型地通过将模拟人声信号转换为数据分组来实现通过数据网络传送语音呼叫。这通常但是非必要地使用被称为因特网协议语音(VoIP)的工业系统来实现。通过计算机网络传送呼叫允许本地电话公司绕过长途运营商，作为附加好处，因为计算机网络构架已经就位，所以通过计算机网络传送呼叫的成本显著减小。
在其它方面，本发明提供一种可选的用于通过计算机网络发送数据(包括语音或视频相关数据)来最小化或管理长途呼叫的成本的方法、系统和支持装置。在一实施例中，本发明提供一种用于在始发点和目的点之间发送语音信息的方法和装置。始发点和目的点可包括，但不受限于电信设备，所述电信设备包括所有类型的电话、传真机、寻呼机、计算机，双向无线电设备、蜂窝式电话和操作为连接到公共交换电话网络(PSTN)的电话。本发明提供一种用于通过在计算机网络上发送话音业务来最小化长途呼叫的成本的方法和装置。在一实施例中，本发明包括一种用于在始发点和目的点之间发送语音信息的方法和装置。始发点和目的点可包括，但不受限于电话、传真机、寻呼机、计算机、双向无线电设备、蜂窝式电话或操作为连接到公共交换电话网络(PSTN)的电话。在优选实施例中，始发和目的点是操作为连接到PSTN的电话。
两个电话可以，但不必须操作为连接到分开的网络，而且每个网络操作为连接到它自己的中间点。优选的是，将中间点操作为通过计算机网络连接，中间点允许两个电话用户基于虚拟号码通信，所述虚拟号码由始发电话的用户输入。
如在此包括性使用的短语“电话通讯”指示在远于“通过喊叫可进行发送的距离”的距离上发送语音，及可选地发送数据、视频或其它信号的技术。参见“ Newton’s Telecom Dictionary”，Harry Newton，20thEd.，CMP Books，2004年3月。短语“电话通讯”与短语电信有关，并且在过去它们可交换地使用。电信被广泛地定义为经由信号(电、光或其它)的交换在一段距离上“通信”的技术和科学。参见“ Newton’s Telecom Dictionary”，Harry Newton，20th Ed.，CMP Books，2004年3月。因此，尽管本公开讨论发起语音呼叫，但是意指的内容更多，如这里使用的短语电话通讯或电信并不限制性地进行解释，而是广泛地不仅包含在一段距离上传送的语音通信。
在本发明的一适应性实施例中，两个选择的路由设备(路由器、交换机等)在不同的地理区分布。每个路由设备操作为连接到计算机系统，从而它们能够彼此通信。每一个路由设备可具有不同的构造以及不同的复杂程度，并且每一个路由设备还在操作上连接到一个或多个始发或目的网络以接收并处理电话呼叫。
非常广泛地，如当处理计算机通信网络时所使用的网关概念描述了连接两个或更多其它类型的不兼容网络的系统。参见“ Newton’s Telecom Dictionary”，Harry Newton，20th Ed.，CMP Books，2004年3月。因此，特别是在数据网络上的网关结构、网关概念或网关系统，通常执行编码或协议转换、访问数据表、预设指令等，并且通常使得在其它方式的不兼容网络之间能进行通信。
优选的是，虚拟号码的区域码在始发电话的本地主叫区域之内。在一示例性实施例中，每一虚拟号码被分配到目的电话。分配信息存储在存储器中，并且可被引用以确定虚拟号码被分配到哪个目的电话号码。存储器可以但不必须操作为连接到两个中间点。在操作上将存储器连接到两个中间点中的每一个允许在接收到号码和确定它的目的地之间的延迟达到最小。
在一示例性实施例中，当第一中间点接收到虚拟号码时，可将呼叫从第一中间点路由到在目的电话的本地主叫区域之内的第二中间点。然后，第二中间点将呼叫转送到目的电话。两个中间点可将呼叫转送到任何目的号码，而不考虑两个电话之间的距离。这允许用户仅使用本地虚拟电话号码访问长途电话，而且提供了减少呼叫的费用的优点。
信息可以在始发和目的网络中以本领域技术人员已知的各种方式发送。这可包括模拟或数字格式的信息，或者将来开发的任何格式的信息。此外，任何类型的信息可在始发和目的网络上的两点之间发送。这可包括，但不受限于语音，数据或者传真传送。
在一实施例中，本发明包括分布在不同地理区域的一组路由器。每个路由器在操作上连接到计算机网络，从而它们能够彼此通信。优选的是，每个路由器操作为连接到一个或更多个始发或目的网络，以接收和处理电话呼叫。
优选的是，路由器能够提供中心局和计算机网络之间的接口。这可包括但是不局限于，将数据转换为能够通过计算机网络传输的格式。在一实施例中，路由器可包括本领域技术人员已知的任何计算机设备。例如，在一些实施例中，路由器可包括处理器，诸如计算机。或者，路由器可包括被修改为解释电话号码并将语音信号转换为数据分组的路由器。在其它实施例中，路由器可包括服务器或代理服务器。
在一实施例中，路由器接收并解释从始发网络发送的虚拟电话号码。在处理电话号码以确定它的目的地之后，路由器连接到另一路由器，其连接到目的网络。一旦在始发和目的路由器之间建立连接，始发路由器就使用期望的协议，例如，VoIP或VoP将语音数据转换为数据分组。优选的是，实时且连续地执行将语音信号转换为数据分组的处理。每个路由器设备还能够实时且连续地将数据分组转换回语音数据。然而，这种转换可不需要由路由器执行。
实时且连续的数据转换允许数据在始发和目的网络以及计算机网络之间以基本上最小延迟量发送。这提供了允许始发和目的用户在基本上最小的可听见失真的情况下进行通信的优点。这也允许所述两个用户在长距离上进行通信，同时最小化呼叫的费用。
在一实施例中，虚拟电话号码被分配到目的网络上的电话号码(物理号码)。虚拟电话号码被分配到例如代理服务器的本地路由器。这可通过更新储存分配给它们的虚拟号码和物理号码的存储器来完成。每个虚拟电话号码用作目的物理号码的别名，并将呼叫转送到所述目的物理号码。虚拟电话号码并不存在于始发或目的网络上的任何物理设备上。因此，呼叫并不必须通过始发或目的网络上的任何物理设备来进行路由，这减少了路由呼叫的复杂程度和费用。
现在，将比较详细地参照在附图中示出的本发明的几个实施例。在任何可能的情况下，附图和描述中使用的相同或相似的标号指示相同或相似的部分或步骤。附图为简化形式，并不符合精确比例，也不是物理连接，而只是用于讨论目的的视觉表示。仅是为了方便和清楚的目的，关于附图来使用诸如顶、底、上、下、之上、以上和以下的方向术语。这些和类似的方向术语不应解释为以任何方式限制本发明的范围。词语“连接”、“耦合”和具有它们的变化词素的类似术语不必指示直接和立即的连接，也可包括通过中间部件或设备的连接。
现在参照图1，根据本发明一方面的选择性实施例的示例性系统包括使用VoIP技术向用户103发起呼叫的用户101。如图所示，用户101拨打分配给用户103的“虚拟号码”(例如号码202-424-XXXX)，这对用户101来说是本地呼叫。呼叫访问路由设备或路由系统105，所述路由设备或路由系统105访问路由数据集合107，以了解分配给用户103的“虚拟号码”在哪里以及如何对其作出响应。如图所示，确定访问电信网络111，其中，网络111通常使用计算机网络来基于包括用户103和路由设备109的地址标识符的寻址路由信息访问多个连接。如上所述，路由设备105根据设计可包括完整的路由系统或一系列的通信部件。一旦获得路由信息，呼叫就会被传送。
当将信息提供给路由设备109时，路由设备109访问路由数据集合113，以确认用户103的身份和“地址标识符”，并实现到用户103的直接连接。
在一非常规的情况下，用户103在物理上将它们到计算机网络111的连接移动到新的物理位置160。例如，用户103从西雅图搬到巴黎，由此使用不同的网络访问入口。现在，用户103在位置160表示为用户103’，当该用户重新连接到计算机网络111时，在连接设备或系统109’的呼叫处理中心(未示出)创建新的“地址位置”。在所述系统中，路由设备105通过网络111将呼叫传送到路由器109。当呼叫从设备105传送到设备109时，它们的等同物的虚拟号码被包括在发送的信息中。当呼叫到达设备109时，设备与数据库113通信以确定分配虚拟号码给优选地址。基于这一通信，设备109确定与用户103相应的目的号码例如是732-528-XXXX。然后，在设备109和用户103之间建立连接。所述连接可包括但不受限于经由选择的因特网协议的连接。一旦建立这一连接，用户101和103就可在不产生典型的长途费用的情况下进行通信。使用这一系统，用户103可在地理上将它们的VOIP设备搬到新的位置160，并利用上述的所有独特好处。
现在参照图2，该图示出本发明的一选择性方面的选择性的示例性实施例，它使得通常为本地区域呼叫电话号码的多个虚拟号码能够以本地主叫价格到达地理上长途的位置。如图所示，可将多个虚拟号码201、150分配给VOIP用户103的虚拟地址标识符152，所述VOIP用户103经由连接网络和路由设备109连接到因特网。结合通过图5所理解的内容，可使用多个已知的虚拟号码来访问每个路由设备。优选的是，每个虚拟号码允许始发用户(例如，用户101)拨打它们的本地区域码之内的号码以访问指定的目的用户103、103’。如图6所示，多个用户可经由设备109同时或独立地与用户103通信，可将所述设备109配置为从多个线路201、150接收虚拟呼叫，并将每个呼叫路由到地址标识符152。
现在参照图3，在本发明的另一示例性实施例中，可将一个或多个虚拟号码分配给多个物理号码301。换言之，虚拟号码可用于单独或同时呼叫多于一个的物理号码301。可以用任何期望的方式，连续单独地或并列广播地将这些呼叫转送到分配的物理号码301(号码155、156、157)。
在一示例中，可分配虚拟号码303，从而服务器设备或路由设备109同时使物理设备301响铃，或每次使一个设备响铃。可将关于顺序、序列、定时和涉及呼叫路由的其它偏好的信息存储在描述为数据系统113的数据集合中。
在另一示例中，如果所有设备同时响铃，则将呼叫路由到第一个应答的号码，如果每个号码每次使一个设备响铃，则用户103以随机或预先选择的顺序选择将呼叫轮换到下一号码。例如，在用户301使用到VOIP设备的虚拟号码157、物理寻呼机号码156和蜂窝号码155的情况下，根据用户的偏好，每个号码可同时响铃，或者按选择的顺序响铃。
当可根据用户的请求容易地改变经由呼叫处理系统分配给特定物理设备(VOIP设备、蜂窝设备、寻呼机、实际电话、计算机等)的虚拟号码时，就会理解到本发明方便的一方面。可经由简单的基于因特网的编程或语音命令以最少的努力来快速完成这种类型的“重新寻址”。
总之，以上所述的本发明和选择性实施例通过提供用于通过最少化或避免由现有PSTN网络提供的几个步骤而以充分低的费用进行长途呼叫或任何与虚拟号码链接的呼叫的至少一个技术方案，来响应先前所述的需求中的至少一个。
作为附加好处，本发明公开了以预先选择的方式将呼叫广播到多个设备的能力，以及在其它实施例中，同时或按照选择的优先级接收指向单个地址标识符的多个呼叫。
现在参考图4，附图示出本发明的另一示例性实施例。在所述示例性实施例中，可激活911紧急服务。以上所述的虚拟号码电话服务的用户可使用图4所示的部件预订911紧急服务。
使用数据入口系统402，诸如个人计算机，电话等，用户通过网络111与数据库系统404进行通信。具体来说，用户发送物理地址信息406，其识别将激活911紧急服务的物理位置。还发送与用户的服务的物理位置相应的电话号码或者将其与所述物理地址关联。经由网络111将物理地址信息和用户电话号码发送到数据库系统404，数据库系统404是存储包括对应于物理地址的公共安全应答点(PSAP)的电话号码的信息的数据库。
PSAP涉及诸如呼叫中心的设备，其中，接收911紧急电话呼叫，然后将其路由到适当的紧急服务。优选的是，在将物理地址信息发送到数据库系统404之前，将物理地址信息翻译成地理编码信息408(地理信息)。数据库系统404接收地理编码信息和用户电话号码，并将用户电话号码映射到服务所述用户位置的PSAP的电话号码。
详细来说，数据库系统404使用地理编码信息来确定服务物理位置并存储一个或多个数据库记录的PSAP，所述数据库记录将用户电话号码映射到服务用户位置的PSAP的电话号码。数据库系统404随后发送确认410，其指示用户电话号码到PSAP电话号码的映射已经成功完成。优选的是，所述确认使电子邮件发送到数据入口系统402，指示激活处理的成功完成。
现在参照图5，所述附图表示本发明另一可选的示例性实施例。在所述实施例中，可使用911紧急服务。在所述实施例中，用户502通过在电话设备上拨打911发起预定用于911紧急服务的电话呼叫504。电话呼叫包括会话初始协议(SIP)消息，所述消息包括用户电话号码，在图4所示的处理中，对于所述用户电话号码激活了911紧急服务。
在被包括在网络111中的装置处接收到电话呼叫504，所述网络111将911呼叫翻译成对数据库查找的请求，所述数据库查找包括以自动号码识别(ANI)形式的用户电话号码，网络111将包括ANI的请求506发送到数据库系统402。数据库系统402查找接收的ANI，并检索相应的PSAP电话号码，其是服务于在图4所示的处理中映射的用户位置的PSAP的电话号码。换言之，选择的PSAP是基于向911发起呼叫的用户的物理位置的，并且用户电话号码用作查找关键词，以从数据库检索PSAP的电话号码。
典型地，PSAP的电话号码是公共交换电话网络(PSTN)上的物理电话号码。数据库系统402将PSAP电话号码508发送到包括在网络111中的装置，所述网络111使用PSAP电话号码508将911呼叫504从用户502路由510到PSAP 512。
包括在网络111中的系统可产生包括关于期望的呼叫路由的信息的新的SIP消息，并将所述消息发送到包括在网络111中的网关。连接网络111与PSTN的网关随后获得呼叫，并通过PSTN将所述呼叫510路由到PSAP 512。呼叫510可包括标准信息，其被包括在路由到PSAP的呼叫中，所述标准信息诸如呼叫的始发位置(用户位置)，以及用户设备的ANI。然后，如必要，用户50与PSAP 512通信，并且PSAP 512可将紧急响应514发送到用户位置。
因此，图4中所示的和可选地图5中所示的本发明的一方面包括：从区域之内的地理上任意的始发号码接收呼叫，所述区域诸如在众所周知的北美编号计划(NANP)区域内，将地理上任意的始发号码映射到地理上有意义的、唯一的(而且对解决紧急呼叫的目的来说是正确的)PSAP电话号码，然后将所述呼叫路由到PSAP电话号码。此外，如果在PSAP的接收设备被配置成接收位置和ANI信息，则可通过数据网络将所述信息传递到PSAP。
尽管已经描述了本发明的特定实施例，但是本领域的技术人员将理解，存在等同于已描述的实施例的其它实施例。因此，应理解，本发明并不受限于所述具体示出的实施例，而其只由所附权利要求的范围来限定。

Claims (26)

1、一种用于完成紧急呼叫的方法，包括：
从在数据网络上的设备接收呼叫，所述呼叫为紧急服务预定，所述设备具有物理位置；
获得紧急呼叫中心的电话号码，所述紧急呼叫中心处理用于所述设备的物理位置的紧急呼叫；以及
使用电话号码将呼叫路由到紧急呼叫中心。
2、如权利要求1所述的方法，其中，通过拨打911来发起所述呼叫。
3、如权利要求1所述的方法，其中，使用设备的电话号码来获得紧急呼叫中心的电话号码。
4、如权利要求1所述的方法，其中，紧急呼叫中心的电话号码是交换电话网络上的物理电话号码。
5、如权利要求1所述的方法，其中，数据网络包括因特网。
6、如权利要求1所述的方法，其中，呼叫包括识别设备的物理位置的信息。
7、如权利要求1所述的方法，其中，呼叫包括识别设备的电话号码的信息。
8、如权利要求1所述的方法，其中，呼叫包括识别设备的物理位置和设备的电话号码的信息。
9、如权利要求1所述的方法，还包括：
经由数据网络将识别设备的物理位置的信息和设备的电话号码的信息传递到紧急呼叫中心。
10、一种用于完成紧急呼叫的系统，包括：
连接到数据网络的装置，所述装置可操作以从数据网络上的设备接收呼叫，所述呼叫为紧急服务预定，所述设备具有物理位置，所述装置还可操作以获得紧急呼叫中心的电话号码，所述紧急呼叫中心处理用于设备的物理位置的紧急呼叫，并使用电话号码将呼叫路由到紧急呼叫中心。
11、如权利要求10所述的系统，其中，通过拨打911发起所述呼叫。
12、如权利要求10所述的系统，其中，使用设备的电话号码来获得紧急呼叫中心的电话号码。
13、如权利要求10所述的系统，其中，紧急呼叫中心的电话号码是交换电话网络上的物理电话号码。
14、如权利要求10所述的系统，其中，数据网络包括因特网。
15、如权利要求10所述的系统，其中，呼叫包括识别设备的物理位置的信息。
16、如权利要求10所述的系统，其中，呼叫包括识别设备的电话号码的信息。
17、如权利要求10所述的系统，其中，呼叫包括识别设备的物理位置和设备的电话号码的信息。
18、如权利要求10所述的系统，其中，所述装置还可操作以经由数据网络将识别设备的物理位置的信息和设备的电话号码的信息传递到紧急呼叫中心。
19、一种用于完成呼叫的方法，包括：
从具有地理上任意的始发电话号码的设备接收呼叫，所述设备具有物理位置；
基于设备的物理位置将地理上任意的始发电话号码映射到地理上有意义的电话号码；以及
将呼叫路由到地理上有意义的电话号码。
20、如权利要求19所述的方法，其中，通过拨打911发起所述呼叫。
21、如权利要求19所述的方法，其中，使用设备的电话号码来获得紧急呼叫中心的电话号码。
22、如权利要求19所述的方法，其中，紧急呼叫中心的电话号码是交换电话网络上的物理电话号码。
23、如权利要求19所述的方法，其中，数据网络包括因特网。
24、如权利要求19所述的方法，其中，呼叫包括识别设备的物理位置的信息。
25、如权利要求19所述的方法，其中，呼叫包括识别设备的电话号码的信息。
26、如权利要求19所述的方法，还包括：
经由数据网络将识别设备的物理位置的信息和设备的电话号码的信息传递到紧急呼叫中心。
CNA2005800081510A 2004-02-10 2005-02-10 基于呼叫始发者位置的voip的紧急呼叫实现 Pending CN101069411A (zh)

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