Communication method and device based on sip protocol
A technology of SIP protocol and communication method, applied in the field of communication, can solve problems such as no management of IP and port information, incorrect registration information, abnormal operation of SIP registration server, etc., to achieve the effect of protecting internal network relationships and improving security
Active Publication Date: 2020-11-10
北京明朝万达科技股份有限公司
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- Claims
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Problems solved by technology
[0002] At present, there have been some proxy software on the market, which proxy SIP protocol (Session Initiation Protocol) software, and do not manage the IP and port information connected to the SIP registration server. When some SIP registration servers receive registration information, they think that the IP+ The port is bound to the SIP URI information. If the proxy SIP reuses the port, the registration information will be incorrect.
From a practical point of view, SIP information is sent to the SIP registration server through a fixed IP and port, resulting in abnormal operation of the SIP registration server with IP and port verification.
Method used
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[0079] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0080] figure 1 It is a flow chart of a method according to an embodiment of the present invention. As shown in the figure, the communication method of this application includes the following steps:
[0081] Step 101: connecting to the proxy server by the user agent;
[0082] Step 102: sending a registration message by the user agent;
[0083] Step 103: the user agent waits for the response forwarded by the proxy server, wherein,...
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The present invention provides a communication method based on the SIP protocol performed by a user agent, comprising: the user agent is connected to a proxy server; the user agent sends a registration message; the user agent waits for a response forwarded by the proxy server, wherein, if If the response forwarded by the proxy server is not received within the specified time, the user agent will continue to send the registration message; receive the response forwarded by the proxy server; wherein, the proxy server can perform the following operations: determine whether the user agent is a registered user; if the user agent is Registered users, the proxy server updates the local registration information, and the proxy server uses the original IP and port to connect to the SIP registration server and forwards the registration information; if the user agent is an unregistered user, the proxy server saves the registration SIP URI, which is about to Use the new IP and port, and then use the new IP and port to connect to the SIP registration server and forward the registration information.
Description
technical field [0001] The invention relates to the communication field, in particular to a communication method and device based on the SIP protocol. Background technique [0002] At present, there have been some proxy software on the market, which proxy SIP protocol (Session Initiation Protocol) software, and do not manage the IP and port information connected to the SIP registration server. When some SIP registration servers receive registration information, they think that the IP+ The port is bound to the SIP URI information. If the proxy SIP reuses the port, the registration information will be incorrect. In reality, SIP information is sent to the SIP registration server through a fixed IP and port, which causes the SIP registration server with IP and port inspection to work abnormally. [0003] The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an ac...
Claims
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IPC IPC(8): H04L29/06
CPCH04L65/1073H04L65/1045H04L65/1104
Inventor 贾伟波孙加光喻波王志海韩振国安鹏
Owner 北京明朝万达科技股份有限公司