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    • 7. 发明申请
    • METHOD AND SYSTEM FOR ESTABLISHING VOIP COMMUNICATION BY MEANS OF DIGITAL VIDEO BROADCASTING NETWORK
    • 数字视频广播网络建立VOIP通信的方法与系统
    • WO2008098918A1
    • 2008-08-21
    • PCT/EP2008/051659
    • 2008-02-12
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONIBM UNITED KINGDOM LIMITEDYU, YuanLIN, Yong HuaWANG, Xiang Dong
    • YU, YuanLIN, Yong HuaWANG, Xiang Dong
    • H04L29/06
    • H04L65/1069H04L65/104H04L65/1046H04L65/4076
    • The present inventiondiscloses a method and system for establishing VoIP communication by means of digital video broadcasting network. The methodcomprises: a first terminal sending a VoIP call request to a source VoIP server to which the first terminal belongs, the VoIP callrequest containing an address of a second terminal; the source VoIP server forwarding the VoIP call request to a destination VoIP server to which the second terminal belongs; the first terminal or any one of VoIP servers in a forwarding path from the source VoIP server to the destination VoIP server forwarding the VoIP call request to a digital video broadcasting front-end server; the digital video broadcasting front-end server converting the VoIP call request into a call request modulated in digital videosignals and broadcasting it within the digital video broadcasting network.The method and system for establishing VoIP communication by means of digital video broadcasting network according to the present invention can receive the VoIP call and accordingly establish the VoIP communication even if the terminal, for example a DVB/IP combo set-top-box, is disconnected to the IP network. Moreover, the present invention can be implemented conveniently and has lower cost.
    • 本发明揭示了通过数字视频广播网络建立VoIP通信的方法和系统。 该方法包括:向第一终端所属的源VoIP服务器发送VoIP呼叫请求的第一终端,包含第二终端的地址的VoIP呼叫请求; 源VoIP服务器将VoIP呼叫请求转发到第二终端所属的目的地VoIP服务器; 从源VoIP服务器到目的地VoIP服务器的转发路径中的第一终端或任何一个VoIP服务器将VoIP呼叫请求转发到数字视频广播前端服务器; 数字视频广播前端服务器将VoIP呼叫请求转换成数字视频信号中调制的呼叫请求,并在数字视频广播网络内进行广播。根据本发明,通过数字视频广播网络建立VoIP通信的方法和系统 即使终端(例如DVB / IP组合机顶盒)与IP网络断开连接,本发明也可以接收VoIP呼叫并因此建立VoIP通信。 此外,本发明可以方便地实现并且具有较低的成本。