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System and method for realizing VOIP service crossing LAN

A private network and business technology, applied in the field of network communication, can solve problems such as the inability to directly use VOIP, and achieve the effect of high reliability and simple implementation process

Inactive Publication Date: 2006-05-03
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, if the different LANs of the enterprise are located in different areas, the internal interconnection between them will inevitably pass through the IP public network (Internet). The local area network is connected and interoperable, and the desire to save phone charges cannot be realized directly by using VOIP technology

Method used

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  • System and method for realizing VOIP service crossing LAN
  • System and method for realizing VOIP service crossing LAN
  • System and method for realizing VOIP service crossing LAN

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Embodiment Construction

[0044] The core idea of ​​the present invention is to adopt tunnel traversal technology (tunnel, tunnel) to intercommunicate the address information of each LAN (local area network) between different LANs (local area networks) that need intercommunication, thereby making it possible to intercommunicate VOIP services between different LANs. In the present invention, the tunnel technology does not consider the upper-layer H323 protocol, and only uses IP packets as data payloads for data transmission, so that the process of intercommunicating address information between LANs is simple and safe.

[0045] The present invention provides a system for realizing VOIP service traversing a private network, such as figure 1 As shown, it specifically includes the tunnel server and the tunnel client. The following will describe their functions and functions respectively:

[0046] (1) Tunnel server tunnel server: communicates with each tunnel client, is used to receive the registration messa...

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Abstract

This invention relates to a system and a method for crossing over private networks by VOIP service, which sets up a tunnel server end and a tunnel customer end separately in the network and transmits the registered information by them to report the address information of private networks to the tunnel server, which sends it to the tunnel customer ends separately, thus the private VOIP service can cross over NAT / NAPT to communicate with other private users via the public network not necessary for them to configure the NAT / NAPT.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a system and method for realizing VOIP service traversing a private network in a network. Background technique [0002] With the popularity of VOIP (Voice over IP) products, many companies have begun to install VOIP systems. Most companies hope that by installing and using VOIP products, they can enhance the means of communication within the enterprise and save most of the long-distance charges. Therefore, many companies hope to connect the headquarters with various branches and offices through Intranet (enterprise intranet) or Internet (Internet) to build a unified enterprise intranet. [0003] The VOIP technology described has the following characteristics: [0004] (1) More TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) ports are used, and some are dynamic ports; [0005] (2) The message carries an IP address and a port number inside. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L12/28H04L29/12
Inventor 单洪政卢晓青刘玉鑫
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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