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    • 3. 发明授权
    • Apparatus and method of PSTN based network roaming and SCP based subscriber management for internet telephony systems
    • 基于PSTN的网络漫游和基于SCP的用户管理互联网电话系统的装置和方法
    • US06519242B1
    • 2003-02-11
    • US09207938
    • 1998-12-09
    • Jason Gerrit EmeryWilliam David Gentry
    • Jason Gerrit EmeryWilliam David Gentry
    • H04Q724
    • H04L29/1216H04L12/6418H04L29/06H04L29/06027H04L61/157H04L65/1009H04L65/103H04L65/104H04L65/1069H04L2012/647H04L2012/6472H04M7/128H04Q3/0029
    • A system and method of PSTN based network roaming and SCP based subscriber management for internet telephony systems. When a call is incoming to the central office 60 of a subscriber's home service area which supports packet data network telephony 10, such as for instance IP telephony, a home location register 40 translates the directory number into an IP address, URL address, or electronic mail address much the same that a local number portability node re-routes calls for non-IP telephony systems. When a subscriber is roaming in another network 100, the roamed into (visited) gateway 130 signals back to the home location register 40 of the subscriber's network 20 and registers its (i.e., the visited gateway's) public switching telephone network 70 telephone directory number and the IP address assigned to the subscriber while connected to the visited network 100. When subsequent calls are incoming to the subscriber's home network switch, the home location register 40 provides the ten (10) digit directory number of the visited gateway 130 and the new IP address rather than the home gateway telephone number and IP address of the subscriber.
    • 基于PSTN的网络漫游和基于SCP的用户管理互联网电话系统的系统和方法。 当呼叫进入支持分组数据网络电话10(例如IP电话)的用户家庭服务区的中心局60时,归属位置寄存器40将目录号码转换为IP地址,URL地址或电子邮件 邮件地址与本地号码可移植性节点重新路由非IP电话系统的呼叫大致相同。 当用户在另一个网络100中漫游时,漫游(被访问的)网关130向用户网络20的归属位置寄存器40发信号并登记其(即,被访问网关的)公共交换电话网络70电话号码簿号码, 当连接到访问网络100时分配给用户的IP地址。当后续呼叫进入用户的家庭网络交换机时,归属位置寄存器40提供访问网关130的10(10)个数字目录号码和新的IP 地址而不是用户的家庭网关电话号码和IP地址。