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Method and equipment for implementing voice communication between IPv6 and IPv4 network terminal

A network terminal, IPv6 network technology, applied in the field of network communication, can solve the problem of SIP voice terminal shielding IPv6 address and other problems

Inactive Publication Date: 2010-06-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the SIP voice terminal that only supports IPv4 in the IPv4 network cannot use the domain name to shield the IPv6 address, and it cannot use the "user@IPv6 address" method to directly initiate a call
Therefore, the method of using NAPT-PT+SIP-ALG or NAT-PT+SIP-ALG to realize the communication between SIP voice terminals in IPv6 and IPv4 networks is not applicable here

Method used

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  • Method and equipment for implementing voice communication between IPv6 and IPv4 network terminal
  • Method and equipment for implementing voice communication between IPv6 and IPv4 network terminal
  • Method and equipment for implementing voice communication between IPv6 and IPv4 network terminal

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Embodiment Construction

[0070] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.

[0071]The core idea of ​​the present invention is: add a network device in the IPv6 / IPv4 dual-stack gateway of IPv6 network, for the convenience of following explanation, be referred to as SIP gateway; The session mapping table of the current call state of the voice terminal is as follows:

[0072] Table 1. Session mapping table 1

[0073] sequence

No

IPv6 address / user name / port number in the IPv6 network

Session peer IPv4 outside the IPv6 network

address / username / port number

conversation

organizer

current session

state

1

2880:5E34:2053:FF:50AB:3F50 / A6 / 8888

202.117.30.27 / A4 / 2323

A6

session establishment

2

2880:5E34::23FF:FEAB:20 / B6 / 9999

202.117.30.53 / B4 / 4545

B6

calling

3

2880:5E34:0531:EF:2EAB:35 / C6 / null

none

none

...

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Abstract

The invention discloses a voice communication realizing method and the device between IPv6 and IPv4 network terminals, comprising the following steps: conversation establishment, communication, and communication ending. The method of conversation establishment is as follow: when a SIP voice terminal in IPv6 network initiates a conversation to the SIP voice terminal in IPv4 network, an end-to-end address set up with the conversation is provided in the form of ''the interface address of the network gateway of the name of user@IPv6 in IPv4 network''; when the SIP voice terminal initiates a conversation to the SIP voice terminal in IPv6 network, different user names are used to distinguish the terminals in IPv6 network, the terminal user names in IPv6 network and the IPv6 addresses are transformed via the gateway. The invention has the advantages that based on the SIP protocol, the IPv6 network and the IPv4 network terminal carry out voice communication simultaneously in the condition of using only one IPv4 address.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and equipment for realizing voice communication between IPv6 and IPv4 network terminals. Background technique [0002] Compared with the IPv4 protocol, IPv6 has a series of advanced features, such as sufficient address space, automatic configuration, improved mobility and security. With the accelerated pace of IPv6 network deployment, future interconnected networks will inevitably be built on top of IPv6. However, the deployment of IPv6 networks is a gradual process, and we cannot expect all networks to become IPv6-based networks overnight. Therefore, at the initial stage of deployment, it must be a period of coexistence with IPv4. In this way, such a situation may occur when deploying an IPv6-based network, such as figure 1 Shown: The deployed IPv6 network is just an isolated IPv6 network island, which communicates with IPv4 nodes in the external IPv4 network thr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04L29/06H04M7/00
Inventor 赖敏范雪峰孙庚茂
Owner ZTE CORP
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