CN1874480A

CN1874480A - Visual communication platform system, and call control method

Info

Publication number: CN1874480A
Application number: CN 200610034951
Authority: CN
Inventors: 钟志华
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-13
Filing date: 2006-04-13
Publication date: 2006-12-06

Abstract

The system thereof comprises videophone terminal and video switch server. The videophone terminal is separately connected to the PSTN public telephone network and the IP wideband internet through a PSTN interface and an IP network interface; when the video switch server accesses the IP wideband internet through a wideband access line, and is connected to the PSTN public telephone network through a digital trunk after passing number authentication. The invention also provides a method for controlling call on a visual communication platform, which comprises: the audio signal is transmitted through PSTN network, and the video signal is transmitted through IP network; when the audio call in PSTN network is put through, its video call in IP network is also put through; when the audio call in PSTN network is ended, its video call in IP network is also ended.

Description

A kind of visual communication platform system and calling-control method thereof

Technical field

The present invention relates to a kind of visual communication platform system and based on the face-to-face communication calling-control method of this visual communication platform system.

Background technology

Existing visual communication platform system, be with the Voice ﹠ Video signaling bearer of radio phone terminal on a kind of communication network.Radio phone terminal as earliest period based on the PSTN of telecom operators public telephone network, the Voice ﹠ Video signal of this radio phone terminal transmits by the PSTN public telephone network after compression, because the limit on transmission bandwidth of PSTN public telephone network, image that this radio phone terminal presents and voice are all undesirable; Afterwards, the N-ISDN integrated services digital network has appearred, message transmission rate can reach 128K, second generation radio phone terminal based on the N-ISDN network, the Voice ﹠ Video data of this radio phone terminal are through unified being carried on the network of N-ISDN after the overcompression, because the relative PSTN public telephone network of N-ISDN network data transfer bandwidth height, and can many N-ISDN line bundles together, improve transmission bandwidth, so image and voice quality that this radio phone terminal presents increase, but because the coverage rate of N-ISDN network has certain restriction, simultaneously, transmit the Voice ﹠ Video data based on wall scroll N-ISDN circuit, effect is not ideal, if adopt many N-ISDN line bundles together, to improve transmission bandwidth, can cause significantly improving of use cost again, so this kind radio phone terminal fails to popularize; Because the fast development of broadband internet, ADSL, LAN, popularizing rapidly of access waies such as optical fiber, and use cost declines to a great extent, the radio phone terminal of the third generation based on the IP broadband internet appearred, be transferred to the other side by IP broadband internet Internet after the Voice ﹠ Video data compression of this radio phone terminal, because the IP broadband internet is the network of an opening, data are transmitted the neither one Quality Ensuring Mechanism in this network, be QoS, time-delay appears in data when this Network Transmission, packet loss, phenomenon such as congested, directly influenced the quality of reception of video and voice data, particularly cause the pause of voice, noise, time-delay, situation such as interrupted, influence the hint expression of communicating pair greatly, simultaneously, this radio phone terminal need be redistributed a new IP phone number, because of the conversion telephone number, brings the user much inconvenience.

Conclude present visual communication platform system, the radio phone terminal by the communication of PSTN public telephone network exists video quality low, the problem that image is little; Radio phone terminal by the ISDN ISDN communications exists for and improves video image quality and make communication expense significantly increase, user's cost of investment and use cost problem of higher, and also isdn network is in and eliminates gradually; The influence that radio phone terminal by the communication of IP broadband internet is changed by the network bandwidth, it is discontinuous to cause image, voice to transmit, and the quality instability need the number of changing.

Summary of the invention

Purpose of the present invention overcomes the deficiencies in the prior art exactly, a kind of visual communication platform system is proposed, can guarantee the communication quality of voice, can make full use of the advantage of IP broadband internet Large Volume Data transmission again, not need to change simultaneously the telephone number of radio phone terminal.

Another object of the present invention just provides the face-to-face communication calling-control method of this visual communication platform system.

For achieving the above object, the present invention proposes a kind of visual communication platform system, this system comprises: radio phone terminal and video exchange server, radio phone terminal is connected respectively to PSTN public telephone network and IP broadband internet by its PSTN line interface that is provided with and IP line interface, the video exchange server inserts the IP broadband internet by the broadband access line, and this video exchange server also is connected to the PSTN public telephone network by the number authentication with digital trunk.

Above-mentioned visual communication platform system belongs to the system group network framework under the distribution control mode.

The invention provides the calling-control method of the visual communication platform system under the distribution control mode, this method comprises the following steps:

(1) use first, radio phone terminal carries out the related registration of pstn telephone number, IP address and fuselage unique identifier ID to the video exchange server; This step comprises:

(A) radio phone terminal sends this machine pstn telephone number, IP address and fuselage unique identifier ID to the video exchange server;

(B) after the confirmation of receipt of video exchange server, deposit the numerical value of pstn telephone number, IP address and the fuselage unique identifier ID of radio phone terminal in video exchange data in server storehouse memorizer;

(2) call setup in the face-to-face communication process and stopping; This step comprises:

(A) calling subscriber's off-hook is dialed called subscriber's telephone number by the PSTN public telephone network;

(B) calling subscriber or called subscriber requesting party send the other side's telephone number by the IP broadband internet to the video exchange server, and the other side IP address is searched in request, and give the requesting party with the other side's feedback information that finds;

(C) called subscriber's off-hook, calling subscriber and called subscriber send voice messaging mutually by the PSTN public telephone network, and voice communication is set up; The requesting party sends video link order by the IP broadband internet to the other side according to the other side's IP address, and the other side confirms that calling subscriber and called subscriber send image information mutually by the IP broadband internet, and video communication is set up;

(D) either party on-hook of calling subscriber and called subscriber, calling subscriber and called subscriber stop by the voice communication of PSTN public telephone network; The on-hook square tube is crossed the IP broadband internet and is sent the instruction that break of video connects, stop simultaneously sending image information to the other side, the other side stops to send image information after receiving the instruction of break of video connection, and calling subscriber and called subscriber stop by the video communication of IP broadband internet.

Visual communication platform system of the present invention can also comprise the center voice exchange, this center voice exchange and video exchange server interconnect, and be connected to the PSTN public telephone network with digital trunk by exchange of speech.

Above-mentioned visual communication platform system belongs to the system group network framework under the centralized control.

The invention provides the calling-control method of the visual communication platform system under the centralized control, this method comprises the following steps:

(A) calling subscriber's off-hook, the transfer of dialing the center voice exchange by the PSTN public telephone network inserts telephone number, center voice exchange and calling subscriber's PSTN call through, the center voice exchange to the calling subscriber point out input its want that the telephone number called out, calling subscriber receive that the prompting back is by the telephone number of dtmf dialing mode to center voice exchange transmission called subscriber;

(B) the center voice exchange is received the called subscriber's of calling subscriber's two-stage dialing indication telephone number, send calling subscriber's telephone number and called subscriber's telephone number by the IP broadband internet to the video exchange server, the video exchange server finds the telephone number associated IP address of IP address, called subscriber of rear side phone number association by registration database, and lookup result is fed back to the calling subscriber by the IP broadband internet; Simultaneously, the center voice exchange sends PSTN by the PSTN public telephone network to the called subscriber and calls out, and the center voice exchange is by IP broadband internet notice video exchange server, and the center voice exchange is being called out the called subscriber; The video exchange server sends to the calling subscriber by the IP broadband internet and requires itself and called subscriber to carry out the instruction of video call, after the calling subscriber receives instruction, sends the video call request to the called subscriber;

(C) called subscriber's off-hook, center voice exchange and called subscriber's PSTN call through, calling subscriber and called subscriber are connected in internal control by the center voice exchange, and calling subscriber and called subscriber send voice messaging mutually by the PSTN public telephone network, and voice communication is set up; The center voice exchange is set up successful information to the voice communication that the video exchange server sends calling subscriber and called subscriber, the video exchange server sends instruction to the called subscriber, require it to confirm calling subscriber's video call, the called subscriber sends the video link order to the calling subscriber, the calling subscriber confirms, calling subscriber and called subscriber send image information mutually by the IP broadband internet, and video communication is set up;

(D) either party on-hook of calling subscriber and called subscriber, the center voice exchange interrupts the other side's voice communication, and calling subscriber and called subscriber stop by the voice communication of PSTN public telephone network; On-hook side stops to send image information by the IP broadband internet to the other side, and the center voice exchange sends the information that voice communication is ended to the video exchange server, after the video exchange server is received the information of voice communication termination, send the instruction that break of video connects to the other side, after the other side receives the instruction of break of video connection, stop to send image information, calling subscriber and called subscriber stop by the video communication of IP broadband internet.

According to the present invention, because the radio phone terminal of visual communication platform system is connected respectively to PSTN public telephone network and IP broadband internet by its PSTN line interface that is provided with and IP line interface, and the video exchange server is set at the IP broadband internet, so, face-to-face communication both sides' voice and the transmission of image subchannel, voice are by the PSTN Network Transmission, and image is by the transmission of IP broadband internet.Thus, make full use of the superiority bandwidth of IP broadband internet Internet and cheap use cost, utilize this network to carry the bigger video data of data traffic, utilize mature and stable PSTN public telephone network transmission voice data at present, ensure voice communication quality, simultaneously do not need radio phone terminal is redistributed telephone number, keep and the consistent telephone number of former PSTN circuit, alleviate the difficulty that the user remembers number again.

And, because the control flow that radio phone terminal and video exchange server fellowship face-to-face communication are called out, by the program that is set in radio phone terminal and the video exchange server, finish face-to-face communication call establishment and termination by the face-to-face communication calling control flow is collaborative, realize when PSTN network audio call through, the video call of IP network side is connected immediately, and when PSTN network audio call termination, the video call of IP network side is ended immediately.

The present invention reduces communications cost with traditional PSTN public telephone network and the advantage combination separately of IP broadband internet, improves communication quality, realizes the high inexpensive face-to-face communication effect of matter.

Description of drawings

Fig. 1 is the visual communication platform system embodiment group-network construction schematic diagram under the distribution control mode of the present invention;

Fig. 2 is the visual communication platform system embodiment group-network construction schematic diagram under the centralized control of the present invention;

Fig. 3 is the radio phone terminal embodiment electrical block diagram of visual communication platform system of the present invention;

Fig. 4 is the related register flow path figure of the number of the one-stage dialing logon mode in the face-to-face communication calling-control method of the present invention;

Fig. 5 is the related register flow path figure of the number of the two-stage dialing logon mode in the face-to-face communication calling-control method of the present invention;

Fig. 6 is the related register flow path figure of the number of the fixed number logon mode in the face-to-face communication calling-control method of the present invention;

Fig. 7 is the face-to-face communication calling control flow figure of the called triggering mode in the face-to-face communication calling-control method of the present invention;

Fig. 8 is the face-to-face communication calling control flow figure of the caller triggering mode in the face-to-face communication calling-control method of the present invention;

Fig. 9 is the face-to-face communication calling control flow figure of the center control in the face-to-face communication calling-control method of the present invention;

Embodiment

Below in conjunction with accompanying drawing in detail the preferred embodiments of the present invention are described in detail.

Voice and the image of realizing the face-to-face communication both sides transmit by PSTN public telephone network and IP broadband internet respectively, need build visual communication platform system, the group-network construction of system is divided into two kinds of patterns, a kind of is visual communication platform system under the distribution control mode, and another kind is the visual communication platform system under the centralized control.

The present invention also provides the face-to-face communication calling-control method of a kind of face-to-face communication both sides' voice and video subchannel transmission, and by the transmission of PSTN public telephone network, image is coordinated control by the transmission of IP broadband internet to voice.Realize that the video call of IP network side is connected immediately when the PSTN calling network is connected, when the PSTN calling network was ended, the video call of IP network side was ended immediately.Group-network construction difference according to visual communication platform system, the face-to-face communication calling-control method also is divided into two kinds: a kind of is the calling-control method of the visual communication platform system under the distribution control mode, and another kind is the calling-control method of the visual communication platform system under the centralized control.

Now visual communication platform system embodiment and calling-control method thereof under these two kinds of patterns are described in detail as follows:

(1) the visual communication platform system embodiment under the distribution control mode

As shown in Figure 1, visual communication platform system main feature under the distribution control mode is that face-to-face communication both sides' audio call does not need to carry out transfer control by unified voice exchange, the i.e. calling of all voice is to directly call end to end, this system comprises: radio phone terminal and video exchange server, the video exchange server comprises number bundling registrar and face-to-face communication call control server again, radio phone terminal is connected respectively to PSTN public telephone network and IP broadband internet by its PSTN line interface that is provided with and IP line interface, number bundling registrar and the interconnection of face-to-face communication call control server, and by broadband access line access IP broadband internet, wherein, the number bundling registrar also is connected to the PSTN public telephone network by the number authentication with the 2M digital trunk.

The voice and video of realizing the face-to-face communication both sides transmits by PSTN public telephone network and IP broadband internet respectively, radio phone terminal must be supported the transmission of audio frequency and video subchannel, as shown in Figure 3, radio phone terminal embodiment of the present invention comprises: PSTN phone part 101, PSTN line status and dialing signal monitoring part 102, analog part 103, digital-to-analogue conversion part 104, coding/decoding part 105, master control system 106 and peripheral interface part 107.PSTN phone part 101, handle phonetic dialing and transmission under the PSTN network, comprise PSTN line interface, dtmf dialing controller, the calling of the other side's circuit, the outgoing of this end line and Speech Communication controller, the calling of the other side's circuit is connected the Speech Communication controller respectively with the outgoing of this end line, and the Speech Communication controller connects PSTN line interface and dtmf dialing controller respectively.PSTN line status and dialing signal monitoring part 102 respectively with PSTN phone part 101 in the PSTN line interface be connected with the dtmf dialing controller, be connected by the cpu central processing unit of communication bus simultaneously with master control system 106.PSTN line status and dialing signal are monitored various status signals and the dtmf dialing signal in part 102 receptions and the control PSTN circuit, and are sent to the cpu central processing unit of master control system 106 in real time.The video input signals of local terminal camera is after the coloud coding preliminary treatment of analog part 103, the video a/d conversion of input digital-to-analogue conversion part 104 is converted to video signal with video analog signal, the video coding/decoding of this video signal input coding/decoding part 105 carries out data compression, by the cpu central processing unit of communication bus input master control system 106, cpu central processing unit transmits video compression data by the ethernet ip line interface in the peripheral interface part 107 to the IP broadband internet as required according to service logic program again; After communication the opposing party's video compression data receives by the ethernet ip line interface of IP broadband internet in peripheral interface part 107, be sent to the cpu central processing unit of master control system 106 by communication bus, cpu central processing unit carries out service logic according to service logic program and judges, carry out the video compression data decoding to meeting the video coding/decoding that the video compression data of setting call flow is sent to coding/decoding part 105, decoded video signal is converted to video analog signal through the video d/a conversion of digital-to-analogue conversion part 104 with video signal, this video analog signal is sent to the coloud coding of analog part 103 and handles, and the processed video output signal is delivered to display and carried out image output.

Radio phone terminal embodiment of the present invention does not need voice signal is carried out extra process, and the voice signal unification is handled by PSTN phone part 101.The calling of the other side's circuit, the outgoing of this end line and analog part 103 in the PSTN phone part 101 are connected, just can realize extra language process function for radio phone terminal of the present invention, as the change of voice function in the communication process, intercut background sound function, recording, playback function etc. are to the voice communication in the face-to-face communication and inoperative; And these extra language process function only need can realize by the program that modification is left in the memory.The cpu central processing unit of radio phone terminal master control system 106 is realized normal visible communication according to the Program Coordination each several part work of leaving the FLASH memory in.

Visual communication platform system under the distribution control mode, its face-to-face communication is called out control and is finished by common cooperation of the radio phone terminal of video exchange server and communicating pair, by the collaborative face-to-face communication of finishing of the call control program in the radio phone terminal that is set in video exchange server and communicating pair.

The calling-control method of the visual communication platform system under the distribution control mode, this method comprises the following steps:

Visual communication platform system embodiment under the distribution control mode of the present invention, its video exchange server comprises number bundling registrar and face-to-face communication call control server, the number bundling registrar is responsible for storing the numerical value of pstn telephone number, IP address and the fuselage unique identifier ID of radio phone terminal registration, and the face-to-face communication call control server is responsible for the calling control of face-to-face communication process.

Calling-control method for the visual communication platform system embodiment under the above-mentioned distribution control mode, its step (1) is used first, and radio phone terminal carries out the related registration of pstn telephone number, IP address and fuselage unique identifier ID to the video exchange server; Just the numerical value of pstn telephone number, IP address and the fuselage unique identifier ID of this radio phone terminal is deposited in the archival memory of number bundling registrar.This step is the number bundling register flow path in the face-to-face communication calling-control method of the present invention, if radio phone terminal is not being registered operation before normal the use, and its follow-up call setup and stop flow process and then can not realize.The purpose of number bundling register flow path is to notify face-to-face communication call control server pstn telephone number that radio phone terminal is connect and the incidence relation between IP address and the fuselage unique identifier ID, make the face-to-face communication call control server seek out two radio phone terminals just calling out at the IP broadband internet by the pstn telephone number at the PSTN public telephone network, thus the control of the video call of synchronization implementation IP broadband internet.

Visual communication platform system embodiment under the distribution control mode, its number bundling register flow path can be divided into dial registration method and fixed number register method, and dial registration method can be divided into one-stage dialing register method and two-stage dialing register method again, and details are as follows:

(1) one-stage dialing register method

The one-stage dialing register method is a digital junction function of utilizing the one-stage dialing that telecom operators provide, collect the suffix number of caller identification number and one-stage dialing in number bundling registrar side, discern then and related binding, idiographic flow is described as follows:

The enforcement prerequisite of one-stage dialing register method is that the number bundling registrar need apply for that 1 or many is supported the 2M digital trunk of one-stage dialing mode to be connected to the digital SPC exchange of PSTN public telephone network.

One-stage dialing, promptly the number that the user dialed is divided into two partly: prefix number+suffix number, as 96688+12345678, the 96688th, prefix number, the 12345678th, suffix number.Can disposablely all dial 9668812345678 during subscriber dialing, and can distinguish prefix number, suffix number and caller identification number when supporting the 2M digital junction alignment registrar of one-stage dialing mode to submit number to.

As shown in Figure 4, the trigger condition of one-stage dialing register method be radio phone terminal power on or registration failure after the user directly trigger registration action by " registration " key; After registration action began, radio phone terminal was at first checked the IP line interface of this radio phone terminal, i.e. LAN interface, whether normal, if normal, then press the default network access of radio phone terminal, send register requirement by the IP broadband internet to registrar; If can normally connect registrar, radio phone terminal sends this machine IP address and this machine fuselage unique identifier ID by the IP broadband internet to registrar, carry out the association binding of machine fuselage ID therewith of this machine IP address earlier, be about to this machine IP address therewith the numerical value of machine fuselage ID deposit the archival memory of registrar in; After this bundlees successfully, is registrar checked the legitimacy of fuselage ID and the legitimacy of IP address? whether did this fuselage ID once have the record that bundled with certain telephone number in archival memory? whether does this telephone number bundle with certain fuselage ID? if it is all normal, then registrar command visible telephone terminal checks whether the PSTN interface is normal, if it is normal, then send the telephone number of PSTN dial registration to radio phone terminal by the IP broadband internet, this number is divided into sub-number of prefix and sub-number two parts of suffix, and the sub-number of suffix is to be drawn according to fuselage ID and certain algorithm computation by registrar, make registrar receive behind the sub-number of this suffix that by the 2M digital trunk can recognition going out is the fuselage ID of that radio phone terminal, radio phone terminal starts from dial feature after receiving the telephone number of PSTN dial registration, by the PSTN public telephone network to disposable sub-number of prefix and the sub-number of suffix all dialed of registrar, screen closes the handle function and the keypad function of closing radio phone terminal of radio phone terminal simultaneously, prompting on screen " is being dialed the XXX number and is being registered, asking patience to wait ".By the incoming call display function that the PSTN network provides, registrar obtains the information of this radio phone terminal call registration server by one-stage dialing 2M digital trunk, promptly obtains the caller identification number and the sub-number of suffix of this radio phone terminal; The caller identification number of radio phone terminal is exactly the pstn telephone number of this radio phone terminal, after registrar is received pstn telephone number and suffix number, by the suffix number is the fuselage ID of that radio phone terminal to the log-on data library inquiry, if search successfully, then suffix number and fuselage ID are carried out the algorithm verification, if verification succeeds, registrar is with the pstn telephone number, the IP address, fuselage ID three bundle, just with the pstn telephone number of this radio phone terminal, the numerical value of IP address and fuselage unique identifier ID deposits the archival memory of number bundling registrar in, registrar sends the information and the on-hook of command visible telephone terminal of succeeding in registration to radio phone terminal, enters state normally to be dialed.

(2) two-stage dialing register method

After the two-stage dialing register method is the telephone number of user's PSTN dial registration of dialing appointment, registrar is connected back prompting radio phone terminal and is notified registrar by dtmf dialing with registration code, registrar is discerned and is bundled, and idiographic flow is described as follows:

The difference of two-stage dialing and one-stage dialing register method maximum is: " suffix number " be disposable dialing when dialling for the first time? still after need waiting until the PSTN call through, by the prompting of registrar, radio phone terminal is dialed by dtmf dialing.Registrar does not need to set disposable dial mode with the 2M digital trunk that digital SPC exchange was connected of PSTN public telephone network under the two-stage dialing mode, only needs general 2M digital trunk to get final product.

As shown in Figure 5, the trigger condition of two-stage dialing be this radio phone terminal power on or registration failure after the user directly by " registration " key, trigger registration action; After registration action began, radio phone terminal was at first checked the IP line interface of this radio phone terminal, i.e. LAN interface, whether normal, if normal, then press the default network access of radio phone terminal, send register requirement by the IP broadband internet to registrar; If can normally connect registrar, radio phone terminal sends this machine IP address and this machine fuselage unique identifier ID by the IP broadband internet to registrar, carry out the association binding of machine fuselage ID therewith of this machine IP address earlier, be about to this machine IP address therewith the numerical value of machine fuselage ID deposit the archival memory of registrar in; After this bundlees successfully, is registrar checked the legitimacy of fuselage ID and the legitimacy of IP address? does this fuselage ID have once the record that bundled with certain telephone number in archival memory? whether does this telephone number bundle with certain fuselage ID? if it is all normal, then registrar command visible telephone terminal checks whether the PSTN interface is normal, if it is normal, then send the telephone number of PSTN dial registration to radio phone terminal by the IP broadband internet, this number is divided into sub-number of prefix and sub-number two parts of suffix, and the sub-number of suffix is to be drawn according to fuselage ID and certain algorithm computation by registrar, registrar is collected the digits by secondary receive behind this suffix number that can recognition going out is the fuselage ID of that radio phone terminal, radio phone terminal starts from dial feature after receiving the telephone number of PSTN dial registration, dial prefix number by the PSTN public telephone network to registrar, screen closes the handle function and the keypad function of closing radio phone terminal of radio phone terminal simultaneously, prompting on screen " is being dialed the XXX number and is being registered, asking patience to wait "; The incoming call display function that provides by the PSTN network, registrar is obtained the information of this radio phone terminal call registration server by the 2M digital trunk, and obtain the caller identification number of this radio phone terminal, the caller identification number of radio phone terminal is exactly the pstn telephone number of this radio phone terminal; Registrar confirms that this PSTN calls out, and send the instruction dial the suffix number to radio phone terminal by dtmf dialing, radio phone terminal receives that the instruction back sends the paid-in suffix number in front by the dtmf dialing of this machine to registrar, after registrar is received the suffix number, by the suffix number is the fuselage ID of that radio phone terminal to the log-on data library inquiry, if search successfully, then suffix number and fuselage ID are carried out the algorithm verification, if verification succeeds, registrar is with the pstn telephone number, the IP address, fuselage ID three bundle, just with the pstn telephone number of this radio phone terminal, the numerical value of IP address and fuselage unique identifier ID deposits the archival memory of number bundling registrar in; Registrar sends the information that succeeds in registration to radio phone terminal, and the on-hook of command visible telephone terminal, enters state normally to be dialed.

(3) fixed number register method

The fixed number register method is meant: the fixing pstn telephone number of its use of programming just before radio phone terminal is given the user and used, when connecting IP network, radio phone terminal informs the telephone number that it bundlees to registrar, registrar does not carry out the process of pstn telephone number identification just carrying out number bundling, and idiographic flow is described as follows:

The maximum difference of fixed number register method and above-mentioned two kinds of dial registration methods is: it does not need to carry out the PSTN network dial, when the telephone number that this radio phone terminal bundled dispatches from the factory in producer or radio phone terminal gone into the internal storage of radio phone terminal before giving the user and using by program burn writing, but the radio phone terminal under this pattern, the telephone number of the PSTN circuit that it connect must be the telephone number of having set in the machine, otherwise the video communication of its follow-up visual calling can not be connected.

As shown in Figure 6, the trigger condition of fixed number registration be this radio phone terminal power on or registration failure after the user directly trigger registration action by " registration " key; After registration action began, radio phone terminal was at first checked the IP line interface of this radio phone terminal, i.e. LAN interface, whether normal, if normal, then press the default network access of radio phone terminal, send register requirement by the IP broadband internet to registrar; If can normally connect registrar, radio phone terminal sends this machine IP address by the IP broadband internet to registrar, this machine fuselage unique identifier ID and default pstn telephone number, is registrar checked the legitimacy of fuselage unique identifier ID and the legitimacy of IP address? does this fuselage ID have once the record that bundled with certain telephone number in database? whether does this telephone number bundle with certain fuselage ID? if all normally then carry out this machine IP address, fuselage unique identifier ID and the default related binding of pstn telephone number three, just with the IP address of this radio phone terminal, the numerical value of fuselage unique identifier ID and default pstn telephone number deposits the archival memory of number bundling registrar in, registrar sends the information that succeeds in registration to radio phone terminal, and the on-hook of command visible telephone terminal, enter state normally to be dialed.

The fuselage unique identifier ID of this machine configured when radio phone terminal dispatched from the factory, and the user can not revise.The number bundling register flow path deposits pstn telephone number, IP address and the fuselage unique identifier ID of radio phone terminal in the data in server storehouse memorizer, in the data in server storehouse memorizer, this three is related one by one corresponding, and their combination is unique.

For the calling-control method of the visual communication platform system embodiment under the above-mentioned distribution control mode, the call setup in its step (2) face-to-face communication process and stopping; This step is the calling control flow in the face-to-face communication calling-control method of the present invention, can carry out dialling of face-to-face communication after radio phone terminal is finished the number bundling register flow path cries, calling control flow is meant the number bundling registrar, face-to-face communication call control server and radio phone terminal fellowship, by the program that is set in server and the radio phone terminal, finish the call setup in the face-to-face communication process and stop by the flow process of setting is collaborative, realize when the audio call of PSTN network side is connected, the video call of IP network side is connected immediately, when the audio call of PSTN network side was ended, the video call of IP network side was ended immediately.

Visual communication platform system embodiment under the distribution control mode, its calling control flow can be divided into called triggering mode and caller triggering mode, and details are as follows:

(1) the face-to-face communication calling control flow of called triggering mode

The face-to-face communication calling control flow of called triggering mode is meant when the calling subscriber calls out the called subscriber, called subscriber's ring and receive calling subscriber's caller identification number after, trigger the whole calling-control method of the video call of IP network side, idiographic flow is described as follows:

As shown in Figure 7, the fuselage unique identifier ID that supposes A calling subscriber's radio phone terminal is YYY, the telephone number NO that is bundled is 666, its IP address is 202.96.1.2, the fuselage unique identifier ID of B called subscriber's radio phone terminal is ZZZ, the telephone number NO that is bundled is 888, and its IP address is 203.97.2.3.When the party A-subscriber called out the party B-subscriber, party A-subscriber's off-hook was heard behind the dialing tone that the PSTN network sends here the telephone number of dialing the party B-subscriber by 888, step 1; Party B-subscriber's ring is also received the caller identification number 666 of sending the party A-subscriber by the PSTN network here, and this moment, the party B-subscriber sent the IP Address requests of inquiring about 666 numbers, step 2 by IP network to the video exchange server S; After the video exchange server S is received party B-subscriber's query requests, find in registration database by 666 numbers the corresponding A user of institute radio phone terminal fuselage ID, IP address, binding telephone number information and feed back to party B-subscriber, step 3; The party B-subscriber receives the off-hook action of waiting for the party B-subscriber after party A-subscriber's the relevant information, if party B-subscriber's off-hook, party A-subscriber and party B-subscriber send voice messaging mutually by the PSTN public telephone network, and voice communication is set up; Trigger the party B-subscriber simultaneously and send the video connection request to the party A-subscriber by IP network, and whether the inquiry party A-subscriber has dialed party B-subscriber's telephone number, the party A-subscriber receives that party B-subscriber's video connection request and its caller identification number of receiving that the party B-subscriber sends here and the telephone number that itself is bundled compare, if the consistent video communication request of just confirming the party B-subscriber, send the response of agreeing that video connects, step 4,5; The party B-subscriber sends the transmission video instructions to the party A-subscriber, and beginning sends view data to the party A-subscriber, and the party A-subscriber begins to send view data to the party B-subscriber after receiving party B-subscriber's video move instruction immediately, and video communication is set up; The party B-subscriber sends the party A-subscriber to the video exchange server S and sets up the information that video is connected with the party B-subscriber simultaneously, starts the charging or the relevant action of video exchange server S, step 6; When either party on-hook of conversation, party A-subscriber and party B-subscriber stop by the voice communication of PSTN public telephone network; Elder generation's on-hook square tube is crossed IP network and is sent the message that the party A-subscriber is connected with party B-subscriber's break of video to the video exchange server S, stop simultaneously sending view data to the other side, and the video exchange server S is received and is sent the instruction that stops to send view data to the opposing party when first on-hook side requires the message of break of video communication, after receiving, the opposing party stops immediately sending view data to the other side, party A-subscriber and party B-subscriber stop step 7 by the video communication of IP broadband internet.

(2) the face-to-face communication calling control flow of caller triggering mode

The face-to-face communication calling control flow of caller triggering mode is meant when the calling subscriber calls out the called subscriber, the telephone number that the calling subscriber reports and submits it to be called out at the PSTN network side by IP network to server, thereby trigger the whole calling-control method of the video call of IP network side, idiographic flow is described as follows:

As shown in Figure 8, the fuselage unique identifier ID that supposes A calling subscriber's radio phone terminal is YYY, the telephone number that is bundled is 666, its IP address is 202.96.1.2, the fuselage unique identifier ID of B called subscriber radio phone terminal is ZZZ, the telephone number NO that is bundled is 888, and its IP address is 203.97.2.3.When the party A-subscriber calls out the party B-subscriber, party A-subscriber's off-hook, hear behind the dialing tone that the PSTN network sends here the telephone number of dialing the party B-subscriber by 888, the while party A-subscriber party B-subscriber's that dials telephone number 888 just now sends to the video exchange server S by IP network, inform the video exchange server S, the party A-subscriber is dialling and is being party B-subscriber, step 1; After the video exchange server S is received party B-subscriber's number 888, in registration database, find immediately corresponding party B-subscriber fuselage ID, IP address, binding telephone number information and feed back to party A-subscriber, step 2; The party A-subscriber receives the off-hook action of waiting for the party B-subscriber after party B-subscriber's the relevant information, if party B-subscriber's off-hook, party A-subscriber and party B-subscriber send voice messaging mutually by the PSTN public telephone network, and voice communication is set up; Trigger the party A-subscriber simultaneously and send the video connection request to the party B-subscriber, and whether the inquiry party B-subscriber receives party A-subscriber's caller identification number, step 3 by IP network; The party B-subscriber receives that party A-subscriber's video connection request and its telephone number of dialing that the party A-subscriber sends here and the telephone number that itself is bundled compare, if the consistent video communication request of just confirming the party A-subscriber, step 4; The party B-subscriber sends to the party A-subscriber and transmits video instructions and begin to send view data to the party A-subscriber, the party A-subscriber begins to send view data to the party B-subscriber after receiving party B-subscriber's video move instruction immediately, party A-subscriber and party B-subscriber send view data mutually by the IP broadband internet, and video communication is set up, step 5; The party B-subscriber sends the party A-subscriber to the video exchange server S and sets up the information that video is connected with the party B-subscriber simultaneously, starts the charging or the relevant action of video exchange server S, step 6; When either party on-hook of conversation, party A-subscriber and party B-subscriber stop by the voice communication of PSTN public telephone network; Elder generation's on-hook square tube is crossed IP network and is sent the message that the A-B break of video connects to the video exchange server S, stop simultaneously sending view data to the other side, and the video exchange server S is received and can be sent the instruction that stop to send view data to the opposing party when the either party requires the message of break of video communication, after receiving, the opposing party stops immediately sending view data, step 7 to the other side.

(2) the visual communication platform system embodiment under the centralized control

As shown in Figure 2, visual communication platform system main feature under the centralized control is that face-to-face communication both sides' audio call all need be by the center voice exchange transfer of appointment, the i.e. calling of all voice at first is to put through the center voice exchange, carry out the calling of called end by this center voice exchange then, whole audio call all needs the participation of center voice exchange.This system embodiment comprises: radio phone terminal, center voice exchange and video exchange server, the video exchange server comprises number bundling registrar and face-to-face communication call control server again, radio phone terminal is connected respectively to PSTN public telephone network and IP broadband internet by its PSTN line interface that is provided with and IP line interface, number bundling registrar and face-to-face communication call control server and the interconnection of center voice exchange, and by broadband access line access IP broadband internet, wherein, the number bundling registrar also is connected to the PSTN public telephone network by the number authentication with the 2M digital trunk, and the center voice exchange is connected to the PSTN public telephone network by exchange of speech with the 2M digital trunk.

Visual communication platform system embodiment's under the radio phone terminal of visual communication platform system embodiment under the centralized control and the distribution control mode is identical, herein repeated description not.

Visual communication platform system under the centralized control, its face-to-face communication is called out control and is finished by common cooperation of the radio phone terminal of video exchange server, center voice exchange and communicating pair, by the collaborative face-to-face communication of finishing of the call control program in the radio phone terminal that is set in video exchange server and communicating pair.

The calling-control method of the visual communication platform system under the centralized control, this method comprises the following steps:

Visual communication platform system embodiment under the centralized control of the present invention, its video exchange server comprises number bundling registrar and face-to-face communication call control server, the number bundling registrar is responsible for storing the numerical value of pstn telephone number, IP address and the fuselage unique identifier ID of radio phone terminal registration, and the face-to-face communication call control server is responsible for the calling control of face-to-face communication process.

Calling-control method for the visual communication platform system embodiment under the above-mentioned centralized control, its step (1) is used first, and radio phone terminal carries out the related registration of pstn telephone number, IP address and fuselage unique identifier ID to the video exchange server; Just the numerical value of pstn telephone number, IP address and the fuselage unique identifier ID of this radio phone terminal is deposited in the archival memory of number bundling registrar.This step is the number bundling register flow path in the face-to-face communication calling-control method of the present invention, if radio phone terminal is not being registered operation before normal the use, and its follow-up call setup and stop flow process and then can not realize.The purpose of number bundling register flow path is to notify face-to-face communication call control server pstn telephone number that radio phone terminal is connect and the incidence relation between IP address and the fuselage unique identifier ID, make the face-to-face communication call control server seek out two radio phone terminals just calling out at the IP broadband internet by the pstn telephone number at the PSTN public telephone network, thus the control of the video call of synchronization implementation IP broadband internet.

Visual communication platform system embodiment under the centralized control, its number bundling register flow path can be divided into dial registration method and fixed number register method, dial registration method can be divided into one-stage dialing register method and two-stage dialing register method again, these are all identical with visual communication platform system embodiment under the distribution control mode, herein repeated description not.

For the calling-control method of the visual communication platform system embodiment under the above-mentioned centralized control, the call setup in its step (2) face-to-face communication process and stopping; This step is the calling control flow in the face-to-face communication calling-control method of the present invention, can carry out dialling of face-to-face communication after radio phone terminal is finished the number bundling register flow path cries, calling control flow is meant the number bundling registrar, the face-to-face communication call control server, center voice exchange and radio phone terminal fellowship, by the program that is set in server and the radio phone terminal, finish the call setup in the face-to-face communication process and stop by the flow process of setting is collaborative, realize when the audio call of PSTN network side is connected, the video call of IP network side is connected immediately, when the audio call of PSTN network side was ended, the video call of IP network side was ended immediately.

Visual communication platform system embodiment under the centralized control, its calling control flow is also referred to as the face-to-face communication calling control flow of center control, and details are as follows:

The face-to-face communication calling control flow of center control is meant when the calling subscriber calls out the called subscriber, the calling subscriber at first will put through PSTN center voice exchange, initiate the audio call of PSTN to real called subscriber by the center voice exchange, and the face-to-face communication call control server triggers the whole calling-control method of the video call of IP network side by monitoring and the call state that extracts the center voice exchange, and idiographic flow is as follows:

As shown in Figure 9, the fuselage unique identifier ID that supposes A calling subscriber's radio phone terminal is YYY, the telephone number NO that is bundled is 666, its IP address is 202.96.1.2, the fuselage unique identifier ID of B called subscriber radio phone terminal is ZZZ, the telephone number NO that is bundled is 888, and its IP address is 203.97.2.3, and the access code NO of PSTN center voice exchange T is 95999.When the party A-subscriber calls out the party B-subscriber, party A-subscriber's off-hook, hear the dialing tone that the PSTN network sends here after, insert telephone number by 95999 transfers of dialing switch T, switch T receives party A-subscriber's caller identification number, the PSTN that connects A-T simultaneously calls out step 1; Switch T sends to the party A-subscriber by the PSTN network and points out the input party A-subscriber to want the telephone number of calling out; After the party A-subscriber receives prompting, by the telephone number 888 of dtmf dialing mode to switch T transmission party B-subscriber, step 2; After switch T receives 888 numbers of party A-subscriber's two-stage dialing indication, send message by IP network to the video exchange server S, tell the video exchange server S, party A-subscriber's calling number and party A-subscriber's called number, require the information such as telephone number of video exchange server S inquiry called number 888 user's IP address, fuselage ID and its binding, step 3; The video exchange server S finds IP address, the fuselage ID of party A-subscriber's 666 calling numbers, the information of binding number by registration database, also finds IP address, the fuselage ID of party B-subscriber's 888 called numbers, the information of binding number simultaneously; The video exchange server S by IP network to party A-subscriber's feedback search result, step 4; Simultaneously, switch T sends PSTN by the PSTN network to the party B-subscriber and calls out, and switch T is by IP network notice video exchange server S, and switch T is calling out party B-subscriber, step 5; At this moment, the video exchange server S is sent the party A-subscriber by IP network to the party A-subscriber and is sent the instruction of video communication request, step 6 to the party B-subscriber; After the party A-subscriber receives instruction, send to its party B-subscriber's relevant information, directly send video communication request, step 7 to the party B-subscriber by IP network by the video exchange server S; Behind party B-subscriber's ring and off-hook, switch T and party B-subscriber's voice channel is connected, and by the internal control of switch T, the passage of A-T-T-B is all got through, and at this moment, the voice communication of party A-subscriber and party B-subscriber's PSTN network side is set up successfully step 8; Simultaneously, switch T sets up successful message, step 9 to the voice communication that the video exchange server S sends party A-subscriber and party B-subscriber; The video exchange server S sends instruction to the party B-subscriber immediately, requires its video call of confirming the party A-subscriber, step 10; At this moment, the party B-subscriber sends the transmission video instructions to the party A-subscriber, and beginning sends video information to the party A-subscriber, and the party A-subscriber begins to send video information to the party B-subscriber after receiving party B-subscriber's video move instruction immediately, and the video communication of IP network side is set up, step 11; Simultaneously, the party B-subscriber starts the charging or the relevant action of video exchange server S, step 12 to the information of video exchange server S transmission party A-subscriber and party B-subscriber's video communication successful connection; When either party on-hook of conversation, a side of first on-hook stops to send video to the other side immediately, and switch T interrupts the opposing party's voice communication simultaneously, and switch T sends the message of voice communication termination, step 13 to the video exchange server S; After the video exchange server S is received the message of voice communication termination, send the instruction that break of video is communicated by letter to the opposing party, stop immediately after the opposing party receives sending video to the other side, party A-subscriber and party B-subscriber's video communication stops step 14.

Visual communication platform system embodiment under the distribution control mode and the video exchange server of the visual communication platform system embodiment under the centralized control include independently server of two of number bundling registrar and face-to-face communication call control servers, the video exchange server also can only use an independently server, the effect of this server is integrated number bundling registrar and face-to-face communication call control server, just this server promptly has the pstn telephone number of radio phone terminal registration, the database of IP address and fuselage unique identifier ID numerical value, there is the face-to-face communication call control program again, perhaps, the video exchange server can also use than two separate server more service devices, and this depends on the stability of visual communication platform system, cost and capacity.

Can also work out voice and video heterogeneous network Synchronous Processing program, taking calling party's time is common time shaft object of reference, after the Synchronous Processing program is connected according to the PSTN voice-over-net, automatically determine the zero-time that image transmits, the video coding/decoding part of notice radio phone terminal partly transmits video data according to this zero-time to the peripheral interface of radio phone terminal, simultaneously, the Synchronous Processing program is adjusted the speed of the video coding/decoding part of radio phone terminal in real time according to the time-delay situation of IP network, reaches video and voice synchronous arrival the other side's purpose.The Synchronous Processing program with time of calling party as object of reference, solve the stationary problem of video and voice, avoid the video excessive communication quality that influences of delaying time.

Claims

1, a kind of visual communication platform system, comprise radio phone terminal, it is characterized in that: also comprise the video exchange server, radio phone terminal is connected respectively to PSTN public telephone network and IP broadband internet by its PSTN line interface that is provided with and IP line interface, the video exchange server inserts the IP broadband internet by the broadband access line, and this video exchange server also is connected to the PSTN public telephone network by the number authentication with digital trunk.

2, visual communication platform system according to claim 1 is characterized in that: also comprise the center voice exchange, and this center voice exchange and video exchange server interconnect, and be connected to the PSTN public telephone network with digital trunk by exchange of speech.

3, visual communication platform system according to claim 1 and 2 is characterized in that: described digital trunk is the 2M digital trunk.

4, visual communication platform system according to claim 1 and 2, it is characterized in that: described video exchange server comprises number bundling registrar and face-to-face communication call control server, number bundling registrar and the interconnection of face-to-face communication call control server, and by broadband access line access IP broadband internet, wherein, the number bundling registrar also is connected to the PSTN public telephone network by the number authentication with digital trunk.

5, a kind of calling-control method based on the described visual communication platform system of claim 1, it is characterized in that: this method comprises the following steps:

6, calling-control method according to claim 5 is characterized in that: described related registration step (1) is a dial registration method, comprising:

(A) radio phone terminal sends IP address and fuselage unique identifier ID by the IP broadband internet to the video exchange server;

(B) after the confirmation of receipt of video exchange server, deposit the IP address of radio phone terminal and the numerical value of fuselage unique identifier ID in video exchange data in server storehouse memorizer;

(C) the video exchange server sends the telephone number of PSTN dial registration to radio phone terminal by the IP broadband internet, this number is divided into sub-number of prefix and sub-number two parts of suffix, and the fuselage unique identifier ID of sub-number of suffix and radio phone terminal is relevant;

(D) after radio phone terminal is received the telephone number of PSTN dial registration, dial the telephone number of PSTN dial registration to the video exchange server by the PSTN public telephone network, the video exchange server obtains the information that this radio phone terminal is called out the video exchange server by digital trunk, promptly obtains the pstn telephone number and the sub-number of suffix of this radio phone terminal;

(E) the video exchange server is the fuselage unique identifier ID of that radio phone terminal to the log-on data library inquiry by the sub-number of suffix, after the affirmation, deposit the numerical value of pstn telephone number, IP address and the fuselage unique identifier ID of this radio phone terminal in video exchange data in server storehouse memorizer.

7, calling-control method according to claim 5 is characterized in that: described related registration step (1) is the fixed number register method, comprising:

(A) radio phone terminal sends this machine IP address, fuselage unique identifier ID and is preset in pstn telephone number in the machine to the video exchange server by the IP broadband internet;

(B) after the confirmation of receipt of video exchange server, deposit IP address, the fuselage unique identifier ID of radio phone terminal and the numerical value that is preset in the pstn telephone number in the machine in video exchange data in server storehouse memorizer.

8, a kind of calling-control method based on the described visual communication platform system of claim 2, it is characterized in that: this method comprises the following steps:

9, calling-control method according to claim 8 is characterized in that: described related registration step (1) is a dial registration method, comprising:

10, calling-control method according to claim 8 is characterized in that: described related registration step (1) is solid number registration method, comprising: