Session and medium authorization method in IP video telephone system based on session start protocol

A session initiation protocol, video telephony technology, applied in the direction of telephone communication, transmission system, digital transmission system, etc., can solve the problem of targeted design without video signal transmission, authentication and authorization technology, message exchange is cumbersome, authorization support is less, etc. problems, to achieve the effect of reducing the number of message exchanges, reducing the management burden, and facilitating management

Inactive Publication Date: 2004-01-21
陈弟桂
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Problems solved by technology

[0003] Existing authentication and authorization technologies mainly include authorization technologies based on Remote Authentication Dial-in User Service (RADIUS), authentication and authorization technologies based on Kerberos, and public key infrastructure (PKI)-based technologies. Authentication and authorization technologies, etc., but these technologies are mainly used to authenticate users, have little support for authorization, and are not suitable

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  • Session and medium authorization method in IP video telephone system based on session start protocol
  • Session and medium authorization method in IP video telephone system based on session start protocol
  • Session and medium authorization method in IP video telephone system based on session start protocol

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Embodiment Construction

[0040] In order to further clarify the innovation of the present invention, some basic concepts are firstly introduced, and on this basis, the principle and specific implementation of the method are described. The IP video phone system discussed in the present invention is based on the Session Initiation Protocol (SIP), uses the Session Initiation Protocol (SIP) to carry out call control, uses RSVP to reserve bandwidth for the session, and uses the Real-time Transport Protocol (Real-Time Transport Protocol) after the session is established. Time Transport Protocol (abbreviation: RTP) protocol transmits real-time audio and video signals. During the session authorization process, the session control server uses the COPS protocol to interact with the policy server, obtains management commands, and controls and manages the session.

[0041] The authorization method introduced in the present invention adopts a policy-based network management technology, and the conceptual model of ...

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Abstract

The present invention relates to computer network management technology, and is one session and medium authorization method in IP video telephone system based on session initialization protocol. Thepresent invention adopts network management technology based on strategy in realizing session authorization, and one strategy server is used in generating management command to inform the session control server to execute management action. The present invention solves the session and medium authorization problem in IP video telephone system and can control effectively the session occupied network resource. The present invention features that during session course, all the network entities exchange authorization message via transmitting authorization token to reduce message exchange times, decrease the mutual independence between the network entities and obtain even more flexibility.

Description

technical field [0001] The invention relates to computer network management technology, in particular to a session initiation protocol (SIP)-based IP telephone system management technology. Background technique [0002] IP video telephony is a rapidly developing business. It transmits voice and video signals through the IP network. Unlike the traditional public telephone network, the IP network is an open network, and it is also an insecure network, which is more vulnerable to attacks. . Therefore, the IP video phone system has higher security requirements than the traditional phone system, and additional mechanisms are needed to ensure the legal use of network resources. In the IP video phone system, the establishment process of each session connection is independent of each other, their security requirements are different from each other, and the network status is also different. Therefore, it is necessary to establish a security mechanism for each session, which needs to...

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Application Information

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IPC IPC(8): H04L12/24H04L29/06H04M11/00
Inventor 朱海龙张国清
Owner 陈弟桂
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