CN1430381A - Network vice gate keep (GK) using non-static IP address technology - Google Patents

Abstract

A techqniue to use non-static IP address by network speech gate keeper (GK) includes: registering domain name for gate keeper, logging-on real time JP address of gate keeper, analysing domain name addressing for terminal gate keeper. We can construct an independent operational VoIP system by using this technique under the condition without static IP address resource to enlarge the using range of VoIP system extensively.

Description

The voice-over-net gatekeeper uses non-static IP address technology

Technical field

The present invention relates to data communication field, relate more specifically to a kind ofly when being used to make up VoIP system, do not need the technology and the method for static ip address resource.Reduce the requirement of VoIP system, enlarged the scope of using resource.

Background technology

Speech on the IP network (VOIP) technology is exactly that voice signal is transmitted with the form of grouping on network.It transmits voice signal with traditional circuit switching and compares, and the resource that takies is few, thereby has reduced transmission cost.Reach the purpose that reduces the telephone relation expense.

When carrying out the voice-over-net communication, the both sides of conversation use an address (IP address) on the network separately, and voice messaging transmits between two IP addresses.But, when the expanded range of carrying out communication, when point-to-point communication is expanded as a bit the communication of multiple spot or multi-multipoint communication, directly use the mode of IP address just to become very difficult, must increase management function, use with convenient.

Wherein terminal is to follow the endpoint device that certain standard is carried out real time communication on packet network; Gateway is responsible for the signaling between the heterogeneous networks and the conversion and the media information conversion and multiplexing of control information; And the gatekeeper is in high level, and the management function to end points (terminal, gateway, multipoint control unit are referred to as end points) and calling is provided, and is the important management entity in the IP telephony network system.Gatekeeper's major function has: four basic functions such as address resolution, access control, Bandwidth Management, district management; In addition, can also provide other functions such as call control signalling, call manager.Make up reliable and stable, a practical VOIP net, be unable to do without the management of GK.

Accompanying drawing 1. is a typical VoIP system schematic diagram.

The user is when carrying out communication, and calling terminal sends signal at first to the gatekeeper, by the gatekeeper calling terminal is carried out authentication, authentication, and after authentication was passed through, the gatekeeper parsed the IP address of called end.Calling terminal connects to the IP of called end address call.After connection was set up, the gatekeeper sent note expense signal, and notice note charge system begins the note expense.

Accompanying drawing 2. is the typical calling procedures of IP phone.

At present, the gatekeeper must have the public ip address of a static state, and terminal is pointed to this fixing public ip address with the gatekeeper who uses, and can use this gatekeeper.When VoIP system operates on the private network, this will not be a problem, because private network has sufficient IP address resource.But when VoIP system moves on the internet, this will bring problem.We know that the IP address is a kind of resource.Particularly in China, the resource of public ip address lacks, and the cost that occupies static public ip address is bigger.This has limited gatekeeper's the scope of application to a certain extent, makes that setting up the small-sized separate network that establishes one's own system becomes very difficult.

With static public ip address different be dynamic public ip address, dynamic public ip address is owing to be that everybody shares same resource, so that cost has been compared low with static public ip address is many.If GK can use dynamic public ip address, then can reduce the maintenance cost of GK, enlarge the scope of application of VOIP system.

A kind of service of domain name mapping is arranged in the use of the Internet, and it is mapped to the IP address to the domain name of text description.This service purpose originally is to allow the easier memory domain name of people.Providing the place registration of analysis service with the domain name and the IP address of use of oneself registration.During use, submit domain name to, provide corresponding IP address by analysis service.Because the domain name mapping service is the known service of the Internet, anyone can enjoy, and does not have other specific (special) requirements.If we can utilize this service, real-time update gatekeeper's IP address.

Summary of the invention

The present invention has proposed a kind of voice-over-net gatekeeper and has used non-static IP address technology and method in order to achieve the above object.A kind of voice-over-net gatekeeper that the present invention proposes uses non-static IP address technology to realize by the following technical solutions.Described voice-over-net gatekeeper uses non-static IP address technology to comprise:

Gatekeeper's domain name registration: carry out domain name registration in internet domain name management organization, make gatekeeper's domain name become unique sign on the internet.

Select real-time dynamic territory analyzing service: selection can provide the service provider of real-time dynamic territory analyzing, uses its service.

Gatekeeper's Real-Time IP address login: when change takes place in gatekeeper's IP address, providing the current IP address registration of place change of domain name addresses analysis service in real time.

Terminal gatekeeper's domain name addresses is resolved: terminal will be initiated the domain name mapping request earlier on the internet before initiating normal call, obtain the current IP address of gatekeeper.After obtaining the current IP address of gatekeeper, enter conventional dial-up flow process.

Appended drawings 1. is a typical VoIP system schematic diagram.Accompanying drawing 2. is that the typical call flow schematic diagram of an IP phone accompanying drawing 3. is new IP phone call flow schematic diagrames

Specific embodiments

Accompanying drawing 3. is that voice-over-net gatekeeper of the present invention uses non-static IP address technology IP phone call flow schematic diagram.Finish

1. gatekeeper's domain name registration: carry out domain name registration in internet domain name management organization, make gatekeeper's domain name become unique sign on the internet.

2. select real-time dynamic territory analyzing service: selection can provide the service provider of real-time dynamic territory analyzing, uses its service.After two steps, we add new functional module on the VoIP system of routine.

3. gatekeeper's one end adds gatekeeper's Real-Time IP address login feature module.When change takes place in gatekeeper's IP address, providing the current IP address registration of place change of domain name addresses analysis service in real time.

4. in terminal one side, add gatekeeper's domain name addresses analytical capabilities module.Terminal will be initiated the domain name mapping request earlier on the internet before initiating normal call, obtain the current IP address of gatekeeper, after obtaining the current IP address of gatekeeper, entered conventional dial-up flow process.

After above-mentioned four steps, we have realized that the gatekeeper does not have the static ip address resource and can work as usual yet.Use this technology, we can make up the VoIP system of independent operating under the condition that does not have the static ip address resource, enlarged the scope of application of VoIP system greatly.

The front has specifically described one embodiment of the present of invention with reference to the accompanying drawings, and still, those skilled in the art can carry out variations and modifications to above-mentioned example within the scope of the invention, and these all do not break away from technical scheme of the present invention.

Claims (3)

1. a voice-over-net gatekeeper uses non-static IP address technology, it is characterized in that: described voice-over-net gatekeeper uses non-static IP address technology to comprise:

Gatekeeper's domain name registration;

Select real-time dynamic territory analyzing service;

The login of gatekeeper's Real-Time IP address;

Terminal gatekeeper's domain name addresses is resolved;

2. according to the described technology of claim 1, it is characterized in that: H.323 described voice-over-net gatekeeper, can use SIP, consensus standards such as MGCP.

3. this technology can be used to make up VoIP system and soft switchcall server.

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