CN1464707A - Multi-communication system of telephone internet - Google Patents

Abstract

The invention discloses a multi-party communication system based on telephone internet comprising a PSTN communication terminal and IP communication terminal, a talking server for managing the system users, a signaling gateway for the interchange between the call request on the Internet and the No. 7 signaling on the PSTN, a media gateway for the interchange between the media voice stream on the Internet and the codes on the PSTN, the talking server is accessed through the Internet, the signaling gateway (SG) and the media gateway (MG) realize the physical link between the two networks.

Description

Multi-communication system of telephone internet

Technical field

The present invention relates to a kind of network communication system, especially a kind of telephone internet communication system belongs to the network communications technology field.

Background technology

In actual life, the communication network that people often use has two kinds: on the one hand, along with the rapid emergence of computer network rapid development and Internet, the application of carrying out the IP conversation by computer network is more and more; On the other hand, a large amount of the remaining of using of people by traditional method---call, promptly carry out communication by the PSTN network.

The technology of IP phone and VoIP is changing present this present situation gradually, because can transmit a plurality of voice channels by IP phone on the circuit of a 64k, dials black phone thereby feasible cost of making a phone call by IP is significantly less than.But the communicating terminal of IP phone remains two telephone sets at present, therefore has following problem:

1. two network systems (Internet, PSTN) are separate;

2. two systems adopt different geology coding methods: Internet to use the IP address, and PSTN uses

Telephone number;

3. two systems can't realize multi-party communication freely.

Summary of the invention

Primary and foremost purpose of the present invention is: connection and Unified coding, address by hardware device are integrated, a kind of multi-communication system of telephone internet is proposed, to realize the conversation of above-mentioned two kinds of communication networks, no matter the other side is at PSTN or on IP network when conversation to make the user, and is all the same to user's sensation.

Further aim of the present invention is: propose a kind of multi-communication system of telephone internet that can realize above-mentioned two kinds of communication network MPTYs, thereby bring more facility for people's actual life, and save the cost of communication greatly.

In order to reach above-mentioned primary and foremost purpose, multi-communication system of telephone internet of the present invention comprises PSTN communicating terminal that inserts the PSTN net and the IP communicating terminal that inserts the Internet net, also comprise the telephony server of managing this system user, and the SGW (SG) that the calling on the Internet (H.323/SIP) request and the Signaling System Number 7 on the PSTN can be changed mutually and can be (G.723 with the medium voice flow on the Internet, G.729) go up coding (G.711) media gateway (MG) of conversion mutually with PSTN, described telephony server inserts by Internet, and described SGW (SG) and media gateway (MG) realize the physical connection of two networks.

In order to reach above-mentioned further purpose, multi-communication system of telephone internet of the present invention also comprises the mixer that the Media Stream of multiplex communication can be transformed into as required suitable Media Stream, and described mixer inserts by Internet.

Like this, when Internet communicating terminal (for example computer) was called out PSTN communicating terminal (for example plain old telephone), computer client was by the telephony server registration of surfing the Net.After this, the user dials common pstn telephone on client, client is passed through H.323/SIP protocol call SGW (SG), and Signaling System Number 7 is arrived in the protocol conversion of calling out, SGW (SG) is by Signaling System Number 7 and the common final telephone subscriber of PSTN calling network, Media Stream from the plain old telephone to the computer is set up, and both sides can converse.

When by the call computer, the user is dialing numbers on phone, switching equipment among the PSTN arrives SGW (SG) with this Call Transfer, SGW (SG) is called out this from Signaling System Number 7 and is converted the SIP/H.323 calling to, and with call setup to telephony server, telephony server is called out the computer user on the IP network, and Media Stream is set up, and both sides can converse.In above process, the effect of media gateway (MG) mainly is the explanation of finishing the Media Stream communications protocol, and selects the proper compression algorithm according to the ability of both sides conversation, and according to different compressed format, realizes the conversion of different compressed formats.

Above communication process only is both sides' conversation, carry out MPTY if desired, then on telephony server, writing down each group conversation, the user can pass through the computer inquery phone group of all on telephony server up till now, and then selectively add certain phone group (must be a disclosed phone group), all Media Streams pass through mixer, and carry out different audio mixings according to different users, thereby realize MPTY.

Obviously, multi-communication system of telephone internet configuration of the present invention is rationally ingenious, as long as drop into less cost, can reliably realize the conversation of PSTN and two kinds of communication networks of IP easily, no matter the other side is at PSTN or on IP network when conversation to make the user, and all sensation is the same.The progress that the present invention brings to modern communications technology will bring more facility to people's life, study undoubtedly, therefore will have a tremendous social and economic benefits.

Description of drawings

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the embodiment of the invention one.

Fig. 2 is the computer client interface among the embodiment one.

Fig. 3 is the structural representation of the embodiment of the invention two.

Embodiment

Embodiment one

Multi-communication system of telephone internet shown in Figure 1 is made up of following content:

1. insert PSTN communicating terminal---plain old telephone PSTN-PH, the mobile phone MB etc. of PSTN net;

2. insert the Internet net the IP communicating terminal---H.323Client PC computer or notebook computer wait;

3. management system user's telephony server TF (model of present embodiment is LS-TF-0201);

4. the Media Stream of multiplex communication can be transformed into as required the mixer HY (model of present embodiment is LS-HY-0203) of suitable Media Stream;

5. the SGW SG that the H.323/SIP call request on the Internet and the Signaling System Number 7 on the PSTN can be changed mutually;

Can with on the Internet G.723, the coding media gateway MG (SG of present embodiment, MG model are A8010) of conversion mutually G.711 on medium voice flow and the PSTN G.729.

Telephony server TF and mixer HY insert by Internet, and SGW SG and media gateway MG realize the physical connection of PSTN and two networks of IP.

On same geocoding, present embodiment adopts special service number to solve two skimble-scamble problems in the network address.On the network at PSTN, apply for a special service number, for example: 166.On the network of Internet, use the id number of unified distribution.This number can be the number of any one 8 bit digital.

When the user that needs to call out on PSTN on certain Internet, the user dials by plain old telephone: 166xxxxxxxx.Wherein " xxxxxxxx " is the other user's Internet address.

If when needing to call out the user of certain PSTN on Internet, the user dials by computer: 086-25-4818086, just with directly the method by a toll telephone of making call is the same.

Same computer user also can realize conversation each other.Dial 166xxxxxxxx on computers, just can be directly and another computalk.Mixer is used for realizing the multi-party simultaneous talking of two systems.By mixer, can realize the Media Stream of multiplex communication is transformed into suitable Media Stream as required, all be mixing with what guarantee that each user hears except the sound of other users him.These parts both can be hardware, also can be to realize by software.

The workflow of present embodiment is as follows:

1. by the computer to call plain old telephone

A) computer client is connected to network, and goes up registration to telephony server TF;

B) user calls (PSTN) on client, as: 086-25-4418086;

C) client is passed through H.323/SIP protocol call SGW SG, and Signaling System Number 7 is arrived in the protocol conversion of calling out;

D) SGW SG is by Signaling System Number 7 and the common final telephone subscriber of PSTN calling network;

E) Media Stream from the plain old telephone to the computer is set up, and both sides can converse.

2. by the call computer

A) user's dialing numbers on phone: 166xxxxxxxx;

B) to SGW SG, SG calls out this from Signaling System Number 7 and converts the SIP/H.323 calling to the switching equipment among the PSTN with this Call Transfer;

C) SGW SG arrives telephony server FT with call setup;

D) telephony server is called out the computer user on the IP network;

E) Media Stream is set up, and both sides can converse.

3. above communication process only for both sides' conversation, carries out MPTY, then if desired

A) on telephony server TF, writing down each group conversation;

B) user can pass through the computer inquery phone group of all on telephony server up till now;

C) user can selectively add certain phone group (must be a disclosed phone group);

D) all Media Streams pass through mixer HY, and carry out different audio mixings according to different users.For example have three individual demands to realize MPTY, no matter these three people are by which kind of means of communication (pstn telephone, Internet), and the processing mode of native system all is the same.Suppose that these three people are respectively A, B, C.Wherein A should hear the audio mixing of B and C, is the audio mixing of A and C and B should hear, and C should hear the audio mixing of A and B.Here the function of mixer HY is handled Media Stream exactly, gives A after the sound mix with B and C, gives B after the sound mix with A and C, gives A after the sound mix with B and C.

The interface of the client of the computer of present embodiment is referring to Fig. 2.

Embodiment two

Figure 3 shows that a kind of multi-communication system of telephone internet that is used to set up phone and the Internet in conjunction with English corner.

" English corner " be in recent years people for better the foreign language studying and the language learning environment of spontaneous foundation.Yet traditional English corner needs people and people's face-to-face talk, and in people and people's face-to-face talk process, it is uneasy that the somebody may feel, and has no idea to reach what someone said is recorded, reviewed and study improved purpose afterwards to reach.The system of present embodiment is made up of following content:

1. insert PSTN communicating terminal plain old telephone PSTN-PH, the mobile phone MB of PSTN net;

2. the IP communicating terminal PC computer of access Internet net and notebook computer are H.323Client;

3. management system user's English telephony server E-TF;

4. the Media Stream of multiplex communication can be transformed into as required the mixer HY of suitable Media Stream;

5. automatic pronunciation equipment AU-SOUND (model of present embodiment is LS-AU-1020);

6. the SGW SG that the H.323/SIP call request on the Internet and the Signaling System Number 7 on the PSTN can be changed mutually;

Can with on the Internet G.723, the coding media gateway MG of conversion mutually G.711 on medium voice flow and the PSTN G.729.

English telephony server E-TF, mixer HY and automatic pronunciation equipment AU-SOUND insert by Internet, and SGW SG and media gateway MG realize the physical connection of PSTN and two networks of IP.

Utilize the system of present embodiment, can very easily be implemented in the English corner on Internet and the PSTN, its tool process and embodiment one are similar, do not give unnecessary details in addition.This dependence phone is compared with aspectant English corner in the actual life in conjunction with the virtual English corner of setting up with the Internet, superiority is conspicuous, can give full play to network advantage, avoid having inconvenient traffic, aspectant embarrassment etc., and can be by recording so that review afterwards and research improve, all right human-computer dialogue.Its characteristics are as follows:

1. be supported in the English dialogue on the Internet;

2. support the participation of plain old telephone;

3. support the talk recording, support many people's conversations;

4. can realize the automatic talk of people and computer by automatic sounding device.

In addition to the implementation, the present invention states can other variation patterns.The technical scheme that all employings are equal to replacement or equivalent transformation formation all drops on the protection range that present patent application requires.

Claims (4)

1. multi-communication system of telephone internet, comprise PSTN communicating terminal that inserts the PSTN net and the IP communicating terminal that inserts the Internet net, it is characterized in that: also comprise the telephony server of managing this system user, and the SGW (SG) that the calling on the Internet (H.323/SIP) request and the Signaling System Number 7 on the PSTN can be changed mutually and can be (G.723 with the medium voice flow on the Internet, G.729) go up coding (G.711) media gateway (MG) of conversion mutually with PSTN, described telephony server inserts by Internet, and described SGW (SG) and media gateway (MG) realize the physical connection of two networks.

2. multi-communication system of telephone internet according to claim 1 is characterized in that: also comprise the mixer that the Media Stream of multiplex communication can be transformed into as required suitable Media Stream, described mixer inserts by Internet.

3. multi-communication system of telephone internet according to claim 1 and 2 is characterized in that: also comprise automatic pronunciation equipment, described automatic pronunciation equipment inserts by Internet, and described telephony server is the English telephony server.

4. multi-communication system of telephone internet according to claim 1 and 2, it is characterized in that: the calling on the described Internet is protocol call H.323/SIP, medium voice flow on the described Internet for G.723, medium language stream G.729, be encoded to G.711 coding on the described PSTN.

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