Route optimization method for session initialization protocol

Abstract

The invention provides a routing optimizing method for conversation protocol, comprising the following steps: step S302, in the process of obtaining the routing set of a conversation, a conversation initial protocol server is added to the routing set, the action domain of the conversation initial protocol server is declared to indicate the action domain of the conversation initial protocol server in conversation process; step S304, in the conversation, when constructing a request massage of the conversation, a request massage sending client inserts routing path data and a action domain to the request massage; and step S106, when the request sending client sends the request massage, or when the conversation initial protocol server forwards the received request massage, the next routing of the request massage is determined according to the current conversation state, the routing path data and the action domain in the request massage. Therefore, the method improves the massage process efficiency and the equipment performance, and shortens the routing path.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, relates to a method for optimizing a session initiation protocol route. Background technique [0002] Session Initiation Protocol (Session Initiation Protocol, hereinafter referred to as SIP) is an IP-based network proposed by the Internet Engineering Task Force (hereinafter referred to as IETF), and is an application for establishing, modifying and terminating multimedia sessions. A layer control protocol that can provide communication control for a variety of devices and applications over an IP network. [0003] The SIP protocol draws on the design ideas of other Internet standards and protocols, and follows the principles of simplicity, openness, compatibility, and scalability that the Internet has always adhered to in terms of style. It has achieved rapid development and wide application. It is not only used in software-based Basic call control is performed in the swi...

AI Technical Summary

Problems solved by technology

[0024] 1) Some business application servers, such as color ring back tone servers, although they only function in the dialogue establishment phase, need to process intermediate messages (such as PRACK, UPDATE) in the dialogue establishment process, so they must be added to the routing path of the entire dialogue, so , which leads to the fact that after the dialog is established, the CRBT server is still in the dialog path and participates in the entire call process. lengthy, affecting dialog processing efficiency and reliability; and

[0025] 2) Some services such as call waiting, call hold, multi-party call / conference call, and late forwarding service occur after the dialogue is established, and have nothing to do with the intermediate messages in the dialogue establishment process. According to the current routing mechanism, they must also be added In the routing path of the entire dialogue, the intermediate messages (such as PRACK, UPDATE) in the dialogue establishment process must also pass through these application servers, making the dialogue path too long, occupying the resources of the application server, and affecting the dialogue establishment speed and dialogue processing efficiency

[0026] According to the above analysis, it can be seen that due to the routing mechanism of the SIP protocol, the dialog routing set acts on the entire dialog phase, causing the application server to only function during the dialog establishment phase or only after the dialog is established. The application server must always be kept in the In the routing path of the entire dialogue, many messages that application servers do not care about have to pass through these application servers, occupying a large amount of dialogue processing resources of the application server, and the call path is too long, which affects the session establishment speed, session processing efficiency and reliability

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