CN101883105A - Calling method, system and equipment based on cascaded conference - Google Patents
Calling method, system and equipment based on cascaded conference Download PDFInfo
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Abstract
The invention discloses a calling method based on a cascaded conference. In the method, when a user requests to join the cascaded conference according to a main conference number, a GK searches a translation relation according to the main conference number and the IP address of a conference terminal, and informs the conference terminal the address information of an MCU (Microprogrammed Control Unit) and a branch conference number. In the invention, the user can be ensured to call the conference on the MCU under the condition that only the main conference number is provided for the user.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method of calling, system and equipment based on subtended conference.
Background technology
Subtended conference, subtended conference are the Great Councils that is combined by the common conference that a plurality of MCU (Multipoint Control Unit, multipoint control unit) hold.
GK (Gatekeeper, gatekeeper): GK follows H.323 consensus standard, and functions such as authentication registration, address translation, access control are provided, and with miscellaneous equipments such as MCU, conference terminals, finishes the business function of video conference jointly.
Concrete, address translation is the major function of GK, and GK supports the E164 number or the IP address of H.323ID translating into corresponding device, thereby reaches the function of calling out addressing.Wherein, the user only need remember E164 number or H.323ID, and does not need to remember that the IP address of MCU, the IP of conference terminal promptly can be addressed to correct MCU by GK.
In the prior art, video signal management server, GK, each MCU, conference terminal MG need to be connected on the network, and conference terminal and MCU need send to information on the GK, so that the user can be according to the E164 number call to meeting.Wherein, the flow process of holding of subtended conference comprises:
(1) be that each session of subtended conference is specified different meeting E164 number, and the different terminal of notice participant user is linked into the E164 number of session.
(2) the E164 number of session and the information of MCU are sent to GK.
(3) the participant user finds corresponding session E164 number according to the conference terminal that oneself inserts.
(4) the participant user joins session according to session E164 number to the GK request.
(5) GK is according to the MCU of session E164 number searching correspondence, and returns corresponding MCU to the conference terminal that the participant user uses.
(6) conference terminal gets access to corresponding MCU from GK, and request adds the meeting of this MCU.
But, the holding in the process of prior art subtended conference, the distribution details of meeting E164 number will be exposed to the participant user; And the participant user need manually search out corresponding meeting E164 number, and when having a large amount of terminals joining the conferences, the terminal a large amount of that the participant user need require great effort finds the E164 number of own access.
Summary of the invention
The invention provides a kind of method of calling, system and equipment,, guarantee that the user can call out the meeting on the MCU only to provide under the situation of main conference number to the user based on subtended conference.
In order to achieve the above object, the present invention proposes a kind of method of calling, be applied to comprise in the system of video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU, said method comprising the steps of based on subtended conference:
Described video signal management server obtains main conference number, determines the MCU that subtended conference needs, and distributes corresponding session number according to described main conference number for each MCU that determines;
Described video signal management server sends to described GK with the information of described main conference number, conference terminal, session number and each MCU;
Described GK stores the translation relation between described main conference number, conference terminal, session number and each MCU;
When the user adds described subtended conference according to described main conference number request, described GK searches described translation relation according to the conference terminal of described main conference number and user's use, and the conference terminal that address information and the corresponding session number notifying of the MCU that finds used to the user, for described conference terminal according to the meeting on the address information of described MCU and the corresponding session number call MCU.
Main conference number and session number are the E164 number;
, for distributing corresponding session number, each MCU that determines specifically comprises according to described main conference number:
For different MCU distributes different session numbers, described session number is the E164 number based on described main conference number.
Described user adds described subtended conference according to described main conference number request, also comprises before:
Described video signal management server is notified to described main conference number by note or lettergram mode the user of described subtended conference.
Also comprise the default translation item in the described translation relation, write down the address of acquiescence MCU and the corresponding relation of acquiescence session number in the described default translation item;
Described GK searches described translation relation according to the conference terminal of described main conference number and user's use, also comprises afterwards:
When the conference terminal according to described main conference number and user's use does not find corresponding record, described GK is with described address and the conference terminal of acquiescence session number notifying to user's use of giving tacit consent to MCU, for the address and the meeting given tacit consent to session number call MCU on of described conference terminal according to described acquiescence MCU.
A kind of calling system based on subtended conference comprises: video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU, wherein:
Described video signal management server is used to obtain main conference number, determines the MCU that subtended conference needs, and distributes corresponding session number according to described main conference number for each MCU that determines; And the information of described main conference number, conference terminal, session number and each MCU sent to described GK;
Described GK is used to store the translation relation between described main conference number, conference terminal, session number and each MCU; And when the user adds described subtended conference according to described main conference number request, search described translation relation according to the conference terminal that described main conference number and user use, and with the address information of the MCU that finds and the conference terminal that corresponding session number notifying uses to the user;
Described conference terminal is used for according to the meeting on the address information of described MCU and the corresponding session number call MCU.
A kind of video signal management server is applied to comprise that described video signal management server comprises in the system of described video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU:
Acquisition module is used to obtain main conference number;
Determination module is used for determining the MCU of subtended conference needs;
Distribution module is connected respectively with determination module with described acquisition module, is used for distributing corresponding session number according to described main conference number for each MCU that determines;
Sending module is connected respectively with described acquisition module, determination module and distribution module, is used for the information of described main conference number, conference terminal, session number and each MCU is sent to described GK.
Main conference number and session number are the E164 number;
Described distribution module specifically is used to different MCU to distribute different session numbers, and described session number is the E164 number based on described main conference number.
Described sending module also is used for by note or lettergram mode described main conference number being notified to the user of described subtended conference.
A kind of gatekeeper GK is applied to comprise that described GK comprises in the system of video signal management server, conference terminal, described GK and multipoint control unit MCU:
Receiver module is used to receive the information of main conference number, conference terminal, session number and each MCU from described video signal management server;
Memory module is connected with described receiver module, is used to store the translation relation between described main conference number, conference terminal, session number and each MCU;
Search module, be connected, be used for when the user adds subtended conference according to described main conference number request, searching described translation relation according to the conference terminal of described main conference number and user's use with described memory module;
Sending module, be connected with the described module of searching, be used for the address information of the MCU that will find and the conference terminal that corresponding session number notifying uses to the user, for described conference terminal according to the meeting on the address information of described MCU and the corresponding session number call MCU.
Also comprise the default translation item in the described translation relation, write down the address of acquiescence MCU and the corresponding relation of acquiescence session number in the described default translation item;
Described sending module, also be used for when the conference terminal according to described main conference number and user's use does not find corresponding record, with described address and the conference terminal of acquiescence session number notifying of giving tacit consent to MCU, for the address and the meeting given tacit consent to session number call MCU on of described conference terminal according to described acquiescence MCU to user's use.
Compared with prior art, the present invention has the following advantages:
Provide a main conference number by user for subtended conference, and be that each session distributes different session numbers in the subtended conference according to this main conference number, make conference terminal to add meeting according to main conference number, and being translated as IP address and the session number of concrete MCU by GK, conference terminal joins the session on each MCU.Thereby making is only providing under the situation of main conference number to the user, guarantees that the user can call out the meeting on the MCU.
Description of drawings
A kind of method of calling flow chart that Fig. 1 proposes for the present invention based on subtended conference;
A kind of concrete application scenarios schematic diagram that Fig. 2 proposes for the present invention;
The administrative model schematic diagram that Fig. 3 is proposed down for application scenarios of the present invention;
Fig. 4 is the schematic diagram of the following organization tree that is proposed of application scenarios of the present invention;
The schematic diagram that Fig. 5 sets for the subtended conference that application scenarios of the present invention is proposed down;
A kind of method of calling flow chart that Fig. 6 is proposed down for application scenarios of the present invention based on subtended conference;
Fig. 7 is the structure chart of a kind of video signal management server of the present invention's proposition;
Fig. 8 is the structure chart of a kind of GK of the present invention's proposition.
Embodiment
Among the present invention, (for example provide a main conference number by user for subtended conference, E164 number A), and be that each session (for example distributes different session numbers in the subtended conference according to this main conference number E164 number A, E164 number A1, E164 number A2), make conference terminal to add meeting according to main conference number, and be translated as IP address and the session number of concrete MCU by GK, conference terminal joins the session on each MCU.
The invention provides a kind of method of calling, be applied to comprise that as shown in Figure 1, this method may further comprise the steps in the system of video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU based on subtended conference:
Step 101, described video signal management server obtains main conference number, determines the MCU that subtended conference needs, and distributes corresponding session number according to described main conference number for each MCU that determines.
Step 102, described video signal management server sends to described GK with the information of described main conference number, conference terminal, session number and each MCU.
Step 103, described GK stores the translation relation between described main conference number, conference terminal, session number and each MCU.
Step 104, when the user adds described subtended conference according to described main conference number request, the conference terminal that described GK uses according to described main conference number and user is searched described translation relation, and with the address information of the MCU that finds and the conference terminal that corresponding session number notifying uses to the user.
Step 105, described conference terminal is according to the meeting on the address information of described MCU and the corresponding session number call MCU.
In order more clearly to set forth technical scheme provided by the invention, the present invention is described in detail below in conjunction with application scenarios shown in Figure 2.In Fig. 2, gatekeeper GK, video signal management server (VideoServer), each MCU (for example, MCU1 ... MCU N etc.), each conference terminal (for example, MG1 ... MG M) all need to be connected on the network.
Should be with under the scene, administrative model as shown in Figure 3, each MCU (MCU A, MCU B, MCU C etc.) and conference terminal (MG 1, MG 2) arrive the video signal management server by network registry, user's (being the manager of meeting) creates on the video signal management server and managerial meeting, and the video signal management server need be issued to meeting information on each MCU, is held a meeting by each MCU.In addition, the manager of meeting can pass through the video signal management server meeting is managed, the operations such as guild's field control of going forward side by side.
In addition, managing for convenience, can also in the video signal management server, incorporate each MCU, conference terminal into different tissue with under the scene.Wherein, tissue is actually a logic scope, the mode that each MCU, conference terminal is incorporated into different tissues includes but not limited to: (1) is organized MCU and conference terminal according to the region relation, i.e. the MCU of same region, conference terminal, the unified tissue that incorporates this region correspondence into.(2) MCU and conference terminal are organized the i.e. MCU of same administrative organization, conference terminal, the unified tissue that incorporates this administrative organization's correspondence into according to administrative relation.
Certainly, in actual applications, the mode that incorporates different tissues into is not limited thereto, and the user can be provided with according to the needs of self.Each tissue is configured to an organization tree according to incorporating strategy into, the low level tissue can be hung under the high-level organization.
In addition, the later stage is created meeting for convenience, can be numbered for each tissue, this numbering can be selected according to actual needs, and for example, this numbering can be an area code, area code such as Hangzhou is 0571, also can be organization number, is 008 etc. such as the numbering of Finance Department.The schematic diagram of organization tree has as shown in Figure 4 comprised a plurality of MCU and conference terminal in this organization tree.In this organization tree, each zone is provided with different area codes, and regional A is numbered 0001, area B be numbered 0002, zone C be numbered 0003.
Should be with under the scene, subtended conference is actually the son conference of being held by a plurality of MCU and forms, in actual applications, control can elect a MCU as main MCU for convenience, and in the building process of subtending tree, main MCU is the root node of subtending tree, sub-MCU gives higher level MCU with the live clean culture of meeting terminal, and accepts the live telecast that higher level MCU transmits, and is broadcast to down each conference terminal of hanging.In addition, each sub-MCU can be used as terminal, joins in the meeting that higher level MCU holds, so there is one tunnel two-way passage (comprising live stream and control flows etc.) between sub-MCU and the higher level MCU at least.Suppose that the user has created a subtended conference in the video signal management server, corresponding subtended conference is set as shown in Figure 5, and wherein MCU 1 is main MCU.
Certainly, in actual applications, the application scenarios that the present invention is suitable for is not limited to above-mentioned application scenarios, all based on the scene of subtended conference all within the scope of application of the present invention.
As shown in Figure 6, the method for calling based on subtended conference provided by the invention may further comprise the steps:
Concrete, the mode that the video signal management server obtains main conference number (should with under the scene be example with E164 number A) includes but not limited to:
When creating subtended conference, user's (being the manager of meeting) (for example, can according to strategies such as networking demand, number create-rules) according to actual needs fills in initial meeting E164 number, and it is E164 number A that the video signal management server obtains main conference number;
It is E164 number A that the video signal management server initiatively generates main conference number according to actual needs.
Certainly, in the practical application, the mode of obtaining main conference number is not limited thereto, and all can obtain the mode of main conference number all within protection range of the present invention.
Wherein, in order to hold subtended conference, the MCU that the video signal management server can be determined the subtended conference needs according to user's configuration or the automatic result who dispatches.
Wherein, the video signal management server can distribute session E164 number automatically for the session on each MCU, be different MCU and distribute different session numbers, and this session number is the E164 number based on main conference number.When main conference number was E164 number A, then the session number can be E164 number A1, E164 number A2, E164 number A3 etc.
Suppose that main conference number E164 number A is 123456, then Dui Ying session E164 number can be as shown in table 1:
Table 1
| The MCU at session place | The meeting E164 number of session correspondence |
| ??MCU1 | ??123456*0001 |
| ??MCU12 | ??123456*0002 |
| ??MCU13 | ??123456*0003 |
Concrete, after the relevant information of knowing the participant user, the video signal management server need be notified to meeting information each user, has carried main conference number E164 number A in this conferencing information.It should be noted that the video signal management server does not need session number (for example, E164 number A1, E164 number A2, E164 number A3 etc.) is notified to the user.
Should be with under the scene, the video signal management server need send to GK with meeting terminal (the IP address of conference terminal), meeting E164 number A, session E164 number (E164 number A1, E164 number A2, E164 number A3 etc.) and the information of MCU (the IP address of MCU).
Concrete, can know the information of above-mentioned main conference number, conference terminal, session number and each MCU on the video signal management server, wherein, this information is the corresponding relation of above-mentioned main conference number, conference terminal, session number and each MCU.For example, this information can be the corresponding relation of the IP address (MCU) of the IP address (conference terminal) of 123456 (main conference numbers), MG11,123456*0002 (session number), MCU12.
Should be with under the scene, the mode that the information of main conference number, conference terminal, session number and each MCU is sent on the GK includes but not limited to: the video signal management server sends to the information of main conference number, conference terminal, session number and each MCU on the GK by RAS (Remote Access Service, the remote access service) signaling of privately owned signaling or expansion.
Concrete, the RRQ of GK (Registration Request, register requirement) field featureSet (characteristic set) and genericData (ancillary data) are provided, and field featureSet and genericData can expand privately owned information, and promptly the video signal management server can send to GK with the information of main conference number, conference terminal, session number and each MCU by field featureSet and genericData.
Among the present invention, after the transmission information that receives the video signal management server, can in translation table, store the translation relation between main conference number, conference terminal, session number and each MCU, translation table as shown in table 2.
Table 2
| Numbering | ??MCU | Meeting E164 number | Conference terminal | Session E164 number |
| ??1 | ??MCU11IP | ??777777 | ??* | ??777777 |
| ??2 | ??MCU12IP | ??123456 | ??MG11IP | ??123456*0002 |
| ??3 | ??MCU12IP | ??123456 | ??MG12IP | ??123456*0002 |
| ??4 | ??MCU12IP | ??123456 | ??MG15IP | ??123456*0002 |
| ??5 | ??MCU1IP | ??123456 | ??MG1IP | ??123456*0001 |
| ??6 | ??MCU13IP | ??123456 | ??MG17IP | ??123456*0003 |
| Numbering | ??MCU | Meeting E164 number | Conference terminal | Session E164 number |
| ??7 | Acquiescence MCU IP | ??123456 | ??* | Acquiescence session E164 number |
Different with meeting E164 number with GK support MCU IP in the prior art is, should be with under the scene, need the realization of expansion GK translation table, and in translation table newly-increased session E164 number field and conference terminal IP, promptly in translation table, need comprise fields such as MCU IP, meeting E164 number (main meeting E164 number), conference terminal IP and session E164 number.
It should be noted that if meeting is non-subtended conference, then meeting E164 number is identical with session E164 number, conference terminal does not need to be recorded in the GK translation table.And if meeting is a subtended conference, then meeting E164 number is different with session E164 number, and at this moment, conference terminal need be recorded in the GK translation table, and the session E164 number of each terminal correspondence is described.It among the present invention solution at subtended conference.
Wherein, because the video signal management server is notified to the user with main conference number before, then the user can add subtended conference according to main conference number request.In addition, the user need add subtended conference by using the conference terminal request.
Owing to stored the translation relation between main conference number, conference terminal, session number and each MCU in the translation table, then according to the conference terminal of main conference number and user's use, GK can find address information and the corresponding session number of corresponding MCU.
For example, main conference number is 123456, and the corresponding MG11 IP of the conference terminal that the user uses is then by the relation of the translation shown in the look-up table 2, then GK can determine that the address information of MCU is the IP address of MCU12, and the session number is the number 123456*0002 of MCU12 correspondence.
For example, GK is notified to conference terminal MG11 with IP address and the number 123456*0002 of MCU12.
For example, conference terminal MG11 is according to the IP address of MCU12 and the meeting on the number 123456*0002 calling MCU12.
It should be noted that in subtended conference, can have the situation of anonymous terminal and anonymous affiliation.Wherein, anonymous affiliation is that conference terminal 11 user when creating meeting does not specify, and when meeting was held, the user was by conference terminal 11 affiliation, and this moment, conference terminal 11 was called anonymous terminal.In some cases, and do not know what conference terminal the participant uses participate in a conference, just directly create a meeting, and allow anonymous affiliation, the participant directly participates in a conference according to the E164 number of meeting, and this meeting meeting-place is suitable for meeting that emergency command meeting, leader hold etc.
In view of the situation, should in the translation relation of translation table, the default translation item be can also comprise, the address of acquiescence MCU and the corresponding relation of acquiescence session number write down in this default translation item with under the scene; Shown in the numbering in the table 27,
At this moment, when the conference terminal according to main conference number and user's use does not find corresponding record, then GK can give tacit consent to the address and the conference terminal of acquiescence session number notifying to user's use of MCU, for the address and the meeting given tacit consent to session number call MCU on of conference terminal according to acquiescence MCU.
For example, when utilizing meeting E164 number A, conference terminal 11 calls out affiliation, GK will search translation table according to the IP of meeting E164 number A and conference terminal 11, if can't find corresponding list item, then can return the IP address of acquiescence MCU and the session E164 number of acquiescence.
Be understandable that,, then require all conference terminals when conference creation, to specify in advance, otherwise can't insert subtended conference, anonymous affiliation promptly is not provided if the default translation item is not provided in the translation table.
Based on the inventive concept same with said method, the invention allows for a kind of calling system based on subtended conference, comprising: video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU, wherein:
Described video signal management server is used to obtain main conference number, determines the MCU that subtended conference needs, and distributes corresponding session number according to described main conference number for each MCU that determines; And the information of described main conference number, conference terminal, session number and each MCU sent to described GK;
Described GK is used to store the translation relation between described main conference number, conference terminal, session number and each MCU; And when the user adds described subtended conference according to described main conference number request, search described translation relation according to the conference terminal that described main conference number and user use, and with the address information of the MCU that finds and the conference terminal that corresponding session number notifying uses to the user;
Described conference terminal is used for according to the meeting on the address information of described MCU and the corresponding session number call MCU.
Based on the inventive concept same with said method, the invention allows for a kind of video signal management server, be applied to comprise that in the system of described video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU, as shown in Figure 7, described video signal management server comprises:
Sending module 14 is connected respectively with described acquisition module 11, determination module 12 and distribution module 13, is used for the information of described main conference number, conference terminal, session number and each MCU is sent to described GK.
Among the present invention, main conference number and session number are the E164 number; Described distribution module 13 specifically is used to different MCU to distribute different session numbers, and described session number is the E164 number based on described main conference number.
Described sending module 14 also is used for by note or lettergram mode described main conference number being notified to the user of described subtended conference.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Based on the inventive concept same with said method, the invention allows for a kind of gatekeeper GK, be applied to comprise that as shown in Figure 8, described GK comprises in the system of video signal management server, conference terminal, described GK and multipoint control unit MCU:
Receiver module 21 is used to receive the information of main conference number, conference terminal, session number and each MCU from described video signal management server;
Memory module 22 is connected with described receiver module 21, is used to store the translation relation between described main conference number, conference terminal, session number and each MCU;
Search module 23, be connected, be used for when the user adds subtended conference according to described main conference number request, searching described translation relation according to the conference terminal of described main conference number and user's use with described memory module 22;
Sending module 24, be connected with the described module 23 of searching, be used for the address information of the MCU that will find and the conference terminal that corresponding session number notifying uses to the user, for described conference terminal according to the meeting on the address information of described MCU and the corresponding session number call MCU.
Among the present invention, also comprise the default translation item in the described translation relation, write down the address of acquiescence MCU and the corresponding relation of acquiescence session number in the described default translation item; Described sending module 24, also be used for when the conference terminal according to described main conference number and user's use does not find corresponding record, with described address and the conference terminal of acquiescence session number notifying of giving tacit consent to MCU, for the address and the meeting given tacit consent to session number call MCU on of described conference terminal according to described acquiescence MCU to user's use.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (10)
1. the method for calling based on subtended conference is applied to comprise in the system of video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU, it is characterized in that, said method comprising the steps of:
Described video signal management server obtains main conference number, determines the MCU that subtended conference needs, and distributes corresponding session number according to described main conference number for each MCU that determines;
Described video signal management server sends to described GK with the information of described main conference number, conference terminal, session number and each MCU;
Described GK stores the translation relation between described main conference number, conference terminal, session number and each MCU;
When the user adds described subtended conference according to described main conference number request, described GK searches described translation relation according to the conference terminal of described main conference number and user's use, and the conference terminal that address information and the corresponding session number notifying of the MCU that finds used to the user, for described conference terminal according to the meeting on the address information of described MCU and the corresponding session number call MCU.
2. the method for claim 1 is characterized in that, main conference number and session number are the E164 number;
, for distributing corresponding session number, each MCU that determines specifically comprises according to described main conference number:
For different MCU distributes different session numbers, described session number is the E164 number based on described main conference number.
3. the method for claim 1 is characterized in that, described user adds described subtended conference according to described main conference number request, also comprises before:
Described video signal management server is notified to described main conference number by note or lettergram mode the user of described subtended conference.
4. as each described method of claim 1-3, it is characterized in that, also comprise the default translation item in the described translation relation, write down the address of acquiescence MCU and the corresponding relation of acquiescence session number in the described default translation item;
Described GK searches described translation relation according to the conference terminal of described main conference number and user's use, also comprises afterwards:
When the conference terminal according to described main conference number and user's use does not find corresponding record, described GK is with described address and the conference terminal of acquiescence session number notifying to user's use of giving tacit consent to MCU, for the address and the meeting given tacit consent to session number call MCU on of described conference terminal according to described acquiescence MCU.
5. the calling system based on subtended conference is characterized in that, comprising: video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU, wherein:
Described video signal management server is used to obtain main conference number, determines the MCU that subtended conference needs, and distributes corresponding session number according to described main conference number for each MCU that determines; And the information of described main conference number, conference terminal, session number and each MCU sent to described GK;
Described GK is used to store the translation relation between described main conference number, conference terminal, session number and each MCU; And when the user adds described subtended conference according to described main conference number request, search described translation relation according to the conference terminal that described main conference number and user use, and with the address information of the MCU that finds and the conference terminal that corresponding session number notifying uses to the user;
Described conference terminal is used for according to the meeting on the address information of described MCU and the corresponding session number call MCU.
6. a video signal management server is applied to comprise in the system of described video signal management server, conference terminal, gatekeeper GK and multipoint control unit MCU, and it is characterized in that, described video signal management server comprises:
Acquisition module is used to obtain main conference number;
Determination module is used for determining the MCU of subtended conference needs;
Distribution module is connected respectively with determination module with described acquisition module, is used for distributing corresponding session number according to described main conference number for each MCU that determines;
Sending module is connected respectively with described acquisition module, determination module and distribution module, is used for the information of described main conference number, conference terminal, session number and each MCU is sent to described GK.
7. video signal management server as claimed in claim 6 is characterized in that, main conference number and session number are the E164 number;
Described distribution module specifically is used to different MCU to distribute different session numbers, and described session number is the E164 number based on described main conference number.
8. video signal management server as claimed in claim 6 is characterized in that,
Described sending module also is used for by note or lettergram mode described main conference number being notified to the user of described subtended conference.
9. gatekeeper GK is applied to comprise in the system of video signal management server, conference terminal, described GK and multipoint control unit MCU that it is characterized in that, described GK comprises:
Receiver module is used to receive the information of main conference number, conference terminal, session number and each MCU from described video signal management server;
Memory module is connected with described receiver module, is used to store the translation relation between described main conference number, conference terminal, session number and each MCU;
Search module, be connected, be used for when the user adds subtended conference according to described main conference number request, searching described translation relation according to the conference terminal of described main conference number and user's use with described memory module;
Sending module, be connected with the described module of searching, be used for the address information of the MCU that will find and the conference terminal that corresponding session number notifying uses to the user, for described conference terminal according to the meeting on the address information of described MCU and the corresponding session number call MCU.
10. GK as claimed in claim 9 is characterized in that, also comprises the default translation item in the described translation relation, has write down the address of acquiescence MCU and the corresponding relation of acquiescence session number in the described default translation item;
Described sending module, also be used for when the conference terminal according to described main conference number and user's use does not find corresponding record, with described address and the conference terminal of acquiescence session number notifying of giving tacit consent to MCU, for the address and the meeting given tacit consent to session number call MCU on of described conference terminal according to described acquiescence MCU to user's use.
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