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Transmission method for session initiation protocol message

A technology of session initiation protocol and transmission method, which is applied in the direction of transmission system, digital transmission system, electrical components, etc., can solve the problems of increasing design cost and complexity, and achieve the effect of low cost

Inactive Publication Date: 2009-07-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing encryption methods are mainly considered from the aspect of security to prevent leakage after interception by a third party. However, when confidentiality is not required, it is too complicated to use the existing encryption methods to break through the limitations of the network, which increases the design cost.

Method used

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  • Transmission method for session initiation protocol message
  • Transmission method for session initiation protocol message
  • Transmission method for session initiation protocol message

Examples

Experimental program
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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0031] see figure 1 , which is a structural diagram of a system applying the present invention, which mainly includes three entities: a SIP terminal, a SIP transit server, and an application server.

[0032] SIP terminal, which can be a PC client, or a terminal based on an embedded operating system (such as a SIP phone, mobile phone, etc.), which includes SIP codec, encryption and decryption processing modules; responsible for encrypting SIP messages and sending them to SIP transit The server: decrypts the encrypted SIP message sent by the SIP transit server, and then processes it.

[0033] The SIP transit server is responsible for decrypting the encrypted SIP message sent by the SIP terminal, and then forwarding it to the application server; encrypting the header of the SIP message sent by the application server, and then forwarding it to the SIP t...

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Abstract

The invention discloses a message transmitting method of a session initiation protocol, which adopts the following technical proposal: in a transmission process of a session initiation protocol (SIP) message, a sender encrypts a head part of the SIP message and then sends the SIP message to a receiver which decrypts the received SIP message. The message transmitting method of the session initiation protocol transmits the SIP message after encrypting the head part of the SIP message, thus breaking through the blockage of the SIP message in a transmission network and achieving the goal of application functions; furthermore, the message transmitting method of the session initiation protocol adopts an encrypting method with simple and easy operation as well as low implementation cost.

Description

technical field [0001] The invention relates to a transmission method of a SIP (Session Initiation Protocol, Session Initiation Protocol) message. Background technique [0002] SIP is an IP telephony signaling protocol proposed by the IETF (Internet Engineering Task Force). Its main purpose is to solve the signaling control in the IP network and communicate with the Soft Switch (soft switch), thus forming the next generation of value-added The business platform provides better value-added services for telecommunications, banking, finance and other industries. [0003] SIP draws on the design ideas of other Internet standards and protocols, and has its outstanding advantages: ①It is a text-based protocol, so the lexical and grammatical analysis of messages expressed in text form is relatively simple; ②SIP session request process and media negotiation The process and so on are carried out together, so the call establishment time is short; ③SIP only needs to make full use of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/00
Inventor 陆剑峰
Owner ZTE CORP
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