Video frequency session system based on P2P and SIP and realizing method thereof

A technology of a video conferencing system and an implementation method, which is applied in the field of P2P and SIP-based video conferencing systems and its implementation, and can solve the problems of not using a P2P network, being unable to communicate with external clients, and being inconvenient to expand.

Inactive Publication Date: 2007-01-03
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Bi Weiqi and others published the article "Design of SIP-based Softswitch Video Conference Control System" in "Electronic Engineer" Issue 01, 2005. This article introduces the video conference system implemented by SIP protocol. The whole system is divided into client , soft switch, application server and MCU, it still adopts the traditional C/S architecture, all videos must be forwarded to the MCU, and then the MCU forwards the video, due to the excessive dependence on the MCU, the system cannot support large capacity
Zeng Qingheng and others published the article "SIP-based Centralized Conference Control Model and Implementation" in "Computer Engineering" I...

Method used

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  • Video frequency session system based on P2P and SIP and realizing method thereof
  • Video frequency session system based on P2P and SIP and realizing method thereof
  • Video frequency session system based on P2P and SIP and realizing method thereof

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Embodiment Construction

[0029] Such as figure 1 As shown, the video conferencing system of the present invention includes three parts: a conference proxy server, a conference control server and a client. The system uses extended SIP as a communication protocol, and P2P as a network structure.

[0030] The conference proxy server is used to manage the conference control server and client. The conference proxy service not only provides the function of registering and logging in but also acts as a proxy, and the SIP messages used are all forwarded from the conference proxy server. There is only one conference proxy server in this system, and the conference proxy server accepts registration requests from the conference control server and client, and registers the registered conference control server and client in the conference proxy server's database. The conference proxy server also accepts the request from the client for obtaining the conference list, and returns the address list of the conference co...

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Abstract

A video meeting system based on P2 P and SIP comprises meeting agent server, meeting control server and client end. It is featured as dividing client end to be sponsor client end and normal client end, using extended SIP as communication protocol and applying P2 P as network structure.

Description

technical field [0001] The invention relates to a system in the technical field of communication and its implementation method, in particular to a P2P and SIP-based video conferencing system and its implementation method. Background technique [0002] SIP (Session Initiation Protocol) is an IP telephony signaling protocol proposed by IETF (Internet Engineering Task Force). Based on the SIP protocol standard, it integrates traditional voice and value-added services, and provides the latest instant messaging services and video services on the IP network, and can provide a standard and highly scalable service provider for other more value-added application service providers platform. SIP is used to initiate sessions, it can control the establishment and termination of multimedia sessions participated by multiple participants, and can dynamically adjust and modify session attributes. P2P is a point-to-point communication method, which is different from the traditional client / s...

Claims

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Application Information

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IPC IPC(8): H04N7/15H04L29/06
Inventor 王菲申瑞民王加俊童任陈晴
Owner SHANGHAI JIAO TONG UNIV
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