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Communication method and communication system based on IP network

A technology of IP network and communication method, which is applied in the field of communication method and communication system, can solve the problems of inability to optimize routing and improve the quality of VOIP calls, and achieve the effect of improving the quality of long-distance calls and improving the quality of calls

Inactive Publication Date: 2017-01-04
北京肇煜宏泰信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this existing VOIP connection mode cannot optimize the routing, which leads to the inability to improve the call quality of VOIP, especially for long-distance calls that require high call quality. communication method and communication system

Method used

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  • Communication method and communication system based on IP network
  • Communication method and communication system based on IP network

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Embodiment Construction

[0041] The following is a detailed description with reference to the accompanying drawings, but the provided embodiments are not intended to limit the scope of the present invention.

[0042] Such as figure 2 As shown, the communication system based on the IP network of the present invention mainly includes at least one SIP server, at least two RTP servers and a plurality of IP clients connected by communication. pass figure 2 The communication system shown can realize the communication method of the present invention. In an embodiment of the present invention, the above-mentioned communication system can be applied to a VOIP network to realize a VOIP voice call. In this embodiment, the IP client can be a VOIP client, which can be connected to the RTP server through the public switched telephone network, and the RTP server and the SIP server can be connected through the Internet .

[0043] Although in figure 2 Only one SIP server, two RTP servers and two IP clients are...

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PUM

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Abstract

The invention discloses a communication method and a communication system based on an IP network. The IP network comprises at least one SIP server, at least two RTP servers and a plurality of IP clients, wherein the SIP server, the RTP servers and the plurality of IP clients are in communication connection. The communication method comprises the following steps of a, acquiring public network IP addresses of at least two IP clients by an SIP server; b, acquiring available port numbers of at least two RTP servers by the SIP server, establishing a mapping relation between at least two IP clients and the available port numbers in a port mapping manner, and assigning at least two IP clients to be connected with at least two RTP servers; and c, performing communication between at least two IP clients through a communication channel which is established between at least two RTP servers. The communication method and the communication system can improve communication quality of an existing IP network.

Description

technical field [0001] The invention relates to a communication method and a communication system, in particular to a communication method and a communication system based on an IP network. Background technique [0002] Currently, Internet telephony (IP telephony) is evolving into a formal business telephony model. SIP (Session Initiation Protocol, Session Initiation Protocol) and RTP (Realtime Transport Protocol, Real-time Transport Protocol) are also used to help provide advanced telephony services across the Internet (Internet), where SIP can be used to establish, change and terminate IP-based networks Calls between users, and RTP is defined to work in one-to-one or one-to-many transmission situations, the purpose of which is to provide time information and achieve stream synchronization. [0003] Now, VOIP (Voice over Internet Protocol, that is, Internet telephony) is also using SIP. However, the existing VOIP connection modes are basically two-two direct connections o...

Claims

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Application Information

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IPC IPC(8): H04M7/00H04L29/06
Inventor 李明
Owner 北京肇煜宏泰信息科技有限公司