CN1458797A - Method and system for realizing meeting appointment business - Google Patents
Method and system for realizing meeting appointment business Download PDFInfo
- Publication number
- CN1458797A CN1458797A CN 02111767 CN02111767A CN1458797A CN 1458797 A CN1458797 A CN 1458797A CN 02111767 CN02111767 CN 02111767 CN 02111767 A CN02111767 A CN 02111767A CN 1458797 A CN1458797 A CN 1458797A
- Authority
- CN
- China
- Prior art keywords
- standard
- message body
- conference
- conference terminal
- gatekeeper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Telephonic Communication Services (AREA)
Abstract
This invention discloses a method and system for realizing conference reservation service, among which a set conference reservation information is filled into an undefined field for protocol expansion in H323 standard stated message unit by the conference terminal which sends the H323 standard and stated message unit to the gate way, analysing and processing the received message unit and returning it to the conference terminal which analyses it and displays the conference reservation result. Multimedia conference system can directly utilize its own devices and resources to realize conference reservation function.
Description
Technical field
The present invention relates to the multi-media communication field, relate in particular to the reservation that realizes multimedia conferencing.
Background technology
At present, new development about multimedia communication meeting standard is based on Internet protocol (Internet protocol in the world, abbreviation IP) H.323 standard (local area network (LAN) video-phone system and terminal equipment standard that no Qos ensures), this standard has not only defined and has comprised terminal (Terminal), gateway (Gateway, be called for short GW), gatekeeper (Gatekeeper, be called for short GK), multipoint controller (multipointcontroller, be called for short MC), multipoint processor (multipoint processor, be called for short MP), and multipoint control unit (multipoint control unit, be called for short MCU, form by MC and MP) etc. between interior functional entity and these functional entitys control of communication message and process, and having defined interoperability between these functives and the functional entity of deferring to other relevant non-H.323 multimedia conferencing standards, these non-H.323 multimedia conferencing standards are as H.320 (arrowband video-phone system and terminal equipment standard), H.324 (low bit rate multimedia communication terminal standard), H.322 (video-phone system in the local area network (LAN) that can guarantee service quality and terminal equipment standard), H.310 (broadband audiovisual communications system and terminal standard), H.321 (in broadband integrated service digital network, use H.320 radio phone terminal standard) etc.Accompanying drawing 1 has shown that such one has been mixed the conference system of deferring to multiple multimedia communication standard functional entity.
One by multipartite multimedia conference system, generally is made of one or more MCU or MC and several terminals, and wherein MCU or MC play a part to coordinate in many ways in meeting and control (only carrying MCU for convenience of description).For a network based on packet switch, also need gatekeeper GK to participate in, mixed for one and to have deferred to the multi-media network that multiple multimedia communication standard functional entity constitutes, also needed the gateway GW that can between different multimedia communication standard networks, change signaling and medium.
Existing one meets the H.323 meeting of the typical Multi-Party Conference of standard and sets up process and comprise the steps:
1. conference terminal, GW and the MCU that defers to standard H.323 respectively to the GK registration relevant they the network address and the message of title (this message is called login request message in standard H.323, Registration ReQuest, be abbreviated as RRQ), perhaps other message etc., show their existence in network, thereby make GK can go out their network address by information indexs such as titles, GK sends registration acknowledgement message (Registration Conform after receiving RRQ, be called for short RCF) or registration reject message (Registration Reject is called for short RRJ);
2. deferring to the conference terminal of standard is H.323 initiating before destination MCU calls out, needs and GK are mutual, it can send address resolution and call admission request message (Admission Request, be called for short ARQ), require GK translation purpose way address, GK responds acknowledgement message (AdmissionConform is called for short ACF) or refuse information (Admission Reject is called for short ARJ); For deferring to other multimedia conferencing standards conference terminal or the MCU of (referring to non-H.323 standard), need finish this process by corresponding GW, promptly terminal or MCU at first carry out information interaction with GW, carry out information interaction by GW and GK then;
3. defer to the destination-address that the conference terminal of standard H.323 utilizes GK to return, the MCU on call intent ground, by Signalling exchange, both sides set up connection; For non-H.323 standard terminal or MCU, finish this process by corresponding GW.
Accompanying drawing 2 usefulness have been represented the H.323 process of standards meetings terminal-joined meeting, and accompanying drawing 3 has represented that the conference terminal of non-H.323 standard passes through gateway GW participation and meets the H.323 process of the meeting of standard.
More than be the situation that conference terminal initiatively makes a call and participates in a conference, also have MC initiatively to make a call and set up meeting, the similar terminal of the step of the realization process of participating in a conference that initiatively makes a call to terminal.
Actual when carrying out meeting, also need to inform the relevant information of MCU meeting, each terminal name as meeting, the network bandwidth that coding rule such as the video that meeting is adopted, audio frequency, data and transmission need be used etc., the relevant information that is to say the meeting that need will hold is informed MCU, general this process is referred to as the conference reservation process, to the realization of conference reservation, is undefined in associated multimedia meeting standard.
For the enterprise-level multimedia conference system, general by special keeper in session the time by the management system of operation MCU, send meeting information (comprising conference reservation information) to MCU.
Along with the development of society, multimedia conference system begins to enter operation market, and this moment, the end user needn't buy a complete set of conference facility, and only need buy conference terminal, utilized the equipment such as MCU of operator then, just can carry out meeting.In this case, the input mode of the multimedia conference booking trafficwise that provides of existing operator generally has following several:
1, the end user informs operator by phone and fax with the requirement of oneself, is responsible for importing the MCU conferencing information by operator.The major defect of this kind method is: only be applicable to the very simple situation of conferencing information, the conferencing information of input is in case complicated, and it is very inconvenient that liaison mode just seems;
2, the end user directly arrives the place transacting business of operator's appointment, is responsible for importing the MCU conferencing information by operator.The major defect of this kind method is: inconvenience, each user will hurry back and forth back and forth.
3, by adopting advanced World Wide Web (WEB) technology, the user only needs the access operator website, and with the meeting information input WEB page, operator imports MCU by related management system with information again, reaches the purpose of input conferencing information.The major defect of this kind method is: because present conference terminal does not provide the WEB page browsing function, the user needs extra computer on the one hand; Will thoroughly solve the safety problem that the WEB technology exists on the other hand, the computer of the user capture WEB page must take rare fixedly public ip address, occupation of extra resources.
Summary of the invention
Technical problem to be solved by this invention is for the equipment beyond the conference system of taking that overcomes that existing multimedia conference system exists in carrying out the conference reservation process and the technical problem of resource, thereby a kind of equipment of itself of multimedia conference system and method that resource just can realize conference reservation utilized is provided.
On the other hand, technical problem to be solved by this invention is for the equipment beyond the conference system of taking that overcomes that existing multimedia conference system exists in carrying out the conference reservation process and the technical problem of resource, and a kind of equipment of itself of multimedia conference system and multimedia conference system that resource just can realize conference reservation of utilizing is provided.
The technical scheme that realizes technical problem to be solved by this invention and take is summarized as follows:
On the one hand, a kind of method that realizes conference reservation of the present invention may further comprise the steps:
(1) judge whether conference terminal is to defer to the H.323 conference terminal of standard, if not, execution in step (7);
(2) satisfy H.323 conference terminal, gateway, the multipoint control unit registration to the gatekeeper respectively of standard;
(3),, continue to carry out if agree if the gatekeeper disagrees with the process of registering then closing session reservation;
(4) satisfy the conference terminal of standard H.323 and the conference reservation information of setting is filled into the field that is used for protocol extension in the message body of H.323 standard code and does not give definition;
(5) the satisfied H.323 conference terminal of standard sends the message body of H.323 standard code to the gatekeeper, comprises described field of not giving definition in the described message body;
(6) message body that receives of gatekeeper's dissection process, and the message body after will handling is returned conference terminal, execution in step (17);
(7) satisfy H.323 gateway, the multipoint control unit registration to the gatekeeper respectively of standard;
(8),, continue to carry out if agree if the gatekeeper disagrees with the process of registering then closing session reservation;
(9) conference terminal of described non-H.323 standard is filled into the field that is used for protocol extension in the non-H.323 standard message body and does not give definition with the conference reservation information of setting;
(10) conference terminal of described non-H.323 standard sends the message body of described non-H.323 standard code to gateway, comprises described field of not giving definition in the described message body;
(11) message body of the described gateway non-H.323 standard code that will receive converts to and satisfies the H.323 message body of standard code;
(12) gateway sends the message body through conversion to the gatekeeper;
(13) message body that receives of gatekeeper's dissection process;
(14) message body after the gatekeeper will handle is returned gateway;
(15) gateway converts the message body that receives to the message body of satisfying non-H.323 standard code;
(16) message body of gateway after conversion is returned in the conference terminal parsing;
(17) conference terminal is resolved the message body of returning, and display conference reservation result.
On the other hand, the multimedia conference system of realization meeting appointment business of the present invention comprises:
Satisfy the H.323 conference terminal of standard, satisfy H.323 standard multipoint control unit, have conference reservation function gateway, satisfy the H.323 gatekeeper of standard, the conference terminal of non-H.323 standard, wherein:
Satisfy standard H.323 conference terminal, satisfy standard multipoint control unit H.323, have conference reservation function gateway, satisfy between the gatekeeper of standard H.323 and connect by the IP communication network; Satisfy H.323 standard multipoint control unit realization to the control of system; The conference terminal that satisfies standard H.323 is filled into the field that is used for protocol extension in the standard message body H.323 and does not give definition with the conference reservation information of setting, and message body is sent to satisfies H.323 that the gatekeeper of standard carries out dissection process; The satisfied H.323 gatekeeper of standard receives message body and carries out returning the conference terminal of satisfied H.323 standard or having conference reservation function gateway after the dissection process, realizes information interaction; The conference terminal of non-H.323 standard is filled into the field that is used for protocol extension in the standard message body H.323 and does not give definition with the conference reservation information of setting, and sends to having conference reservation function gateway by communication network; Message body with non-H.323 standard code that conference reservation function gateway will receive converts to satisfies the H.323 message body of standard code, and the gatekeeper of standard sends to satisfying H.323.
Adopt technical scheme provided by the invention, multimedia conference system does not need to take conference system equipment and resource in addition in carrying out the conference reservation process, can directly utilize the equipment of itself of multimedia conference system and the function that resource just can realize conference reservation, reduce cost, simplified the course of work of conference reservation.
Description of drawings
Fig. 1 shows one and has mixed the conference system of deferring to multiple multimedia communication standard functional entity;
H.323 Fig. 2 shows the H.323 process of standards meetings of standards meetings terminal-joined;
The conference terminal that Fig. 3 shows non-H.323 standard passes through gateway GW to be participated in and meets the H.323 process of the meeting of standard;
Fig. 4 shows the multimedia conference system of realization meeting appointment business provided by the invention;
Fig. 5 shows the method flow diagram that multimedia conference system provided by the invention is realized meeting appointment business.
Embodiment
Referring now to accompanying drawing 4 and accompanying drawing 5, describe of the present invention one preferred embodiment.
In the multimedia conference system of the realization meeting appointment business that accompanying drawing 4 provides, comprising:
Satisfy the H.323 conference terminal of standard, satisfy H.323 standard multipoint control unit, have conference reservation function gateway, satisfy the H.323 gatekeeper of standard, the conference terminal of non-H.323 standard, wherein:
Connect by the IP communication network between the gatekeeper of the conference terminal of satisfied H.323 standard, satisfied H.323 standard multipoint control unit, gateway, satisfied H.323 standard with conference reservation function; Satisfy H.323 standard multipoint control unit realization to the control of system; The conference terminal that satisfies standard H.323 is filled into the field that is used for protocol extension in the standard message body H.323 and does not give definition with the conference reservation information of setting, and message body is sent to satisfies H.323 that the gatekeeper of standard carries out dissection process; The satisfied H.323 gatekeeper of standard receives message body and carries out returning the conference terminal of satisfied H.323 standard or having conference reservation function gateway after the dissection process, realizes information interaction; The conference terminal of non-H.323 standard is filled into the field that is used for protocol extension in the standard message body H.323 and does not give definition with the conference reservation information of setting and sends to having conference reservation function gateway by communication network; Message body with non-H.323 standard code that conference reservation function gateway will receive converts to satisfies the H.323 message body of standard code, and the gatekeeper of standard sends to satisfying H.323.
In the present embodiment, in conjunction with the accompanying drawings 5, the course of work of system may further comprise the steps:
(1) judge whether conference terminal is to defer to the H.323 conference terminal of standard, if not, execution in step (7);
(2) satisfy H.323 conference terminal, gateway, the multipoint control unit registration to the gatekeeper respectively of standard;
(3),, continue to carry out if agree if the gatekeeper disagrees with the process of registering then closing session reservation;
(4) satisfy the conference terminal of standard H.323 and the conference reservation information of setting is filled into the field that is used for protocol extension in the message body of H.323 standard code and does not give definition;
(5) the satisfied H.323 conference terminal of standard sends the message body of H.323 standard code to the gatekeeper, comprises described field of not giving definition in the described message body;
(6) message body that receives of gatekeeper's dissection process, and the message body after will handling is returned conference terminal, execution in step (17);
(7) satisfy H.323 gateway, the multipoint control unit registration to the gatekeeper respectively of standard;
(8),, continue to carry out if agree if the gatekeeper disagrees with the process of registering then closing session reservation;
(9) conference terminal of described non-H.323 standard is filled into the field that is used for protocol extension in the non-H.323 standard message body and does not give definition with the conference reservation information of setting;
(10) conference terminal of described non-H.323 standard sends the message body of described non-H.323 standard code to gateway, comprises described field of not giving definition in the described message body;
(11) message body of the described gateway non-H.323 standard code that will receive converts to and satisfies the H.323 message body of standard code;
(12) gateway sends the message body through conversion to the gatekeeper;
(13) message body that receives of gatekeeper's dissection process;
(14) message body after the gatekeeper will handle is returned gateway;
(15) gateway converts the message body that receives to the message body of satisfying non-H.323 standard code;
(16) message body of gateway after conversion is returned in the conference terminal parsing;
(17) conference terminal is resolved the message body of returning, and display conference reservation result.
More particularly, the key of technical scheme is directly to expand the reservation that the function of each communication entity of standard definition is H.323 finished meeting, and these communication entities comprise conference terminal, GW, GK and MCU etc.The specific implementation of meeting appointment business is finished by following two approach:
On the one hand, expand the nonstandard field in the interaction message of the conference terminal stipulated in the standard H.323 and GK, the i.e. special field that is used for protocol extension and defines in the message body H.323, directly the meeting subscription information is sent to GK by conference terminal, (GK can directly notify MCU by GK notice MCU then, also can change to connect and know that MCU, each producer can expand in the standard H.323 the interaction message body about GK and MCU, also can self-defined new message body finish this function) by other inter-entity.Its specific implementation process prescription is as follows:
At first conference terminal is when information such as the network address that sends registration oneself to GK and title (rrq message body), the conference reservation information of importing at the interface that nonstandard field filling user provides by terminal, conference terminal also can be filled foregoing in the nonstandard field of the message body (being ARQ message body) that sends request GK parsing destination-address to GK;
After GK receives rrq message (perhaps ARQ message) then, resolve and handle nonstandard field contents, send confirmation/refuse information (be RCF/RRJ, confirmation/refuse information of corresponding A RQ is ACF/ARJ) to conference terminal then, be filled with response in the nonstandard field of these message this reservation message;
Last conference terminal is resolved RCF/RRJ (perhaps ACF/ARJ) message body, obtains the conference reservation result, realizes meeting appointment business.
On the other hand, conference terminal for the non-H.323 standard in the system, GW by their signaling messages of conversion sends RRQ or the ARQ message that has conference reservation information as mentioned above to GK, and process is with the conference reservation process of the conference terminal of above-mentioned H.323 standard thereafter.Between non-H.323 conference terminal and GW about conference reservation message can imitate H.323 conference terminal and GK alternately about the formulating alternately of conference reservation message, as expansion or self-defined message body between them etc.
In the practical application, each producer is the conference setup terminal separately, between GW and the GK about the more concrete reciprocal process of meeting appointment business application, and except that can utilizing above-mentioned RRQ that mentions and ARQ message, can also expand other standard message bodies, as bandwidth request message body (BandReQuest, be called for short BRQ), gatekeeper discovery request message body (Gatekeeper discovery ReQuest, be called for short GRQ), endpoint location request message body (Location Request, be called for short LRQ), request message body (Disengage ReQuest is withdrawed from calling, be called for short DRQ), information request message body (Information ReQuest, be called for short IRQ), Resource Availability Indication message body (ResourceAvailable Indication, be called for short RAI) etc., self-defining message body perhaps utilized.
For conference terminal, GW and the GK of different manufacturers, because they can not resolve or can not resolve nonstandard field contents, according to standard code, they will abandon this section content, not influence the interoperability between them this moment.
Although the disclosed method and system of realizing meeting appointment business that relates to has been carried out special description with reference to embodiment, those skilled in the art can understand, under the situation that does not depart from scope and spirit of the present invention, can carry out all conspicuous modification of form and details to it.Therefore, embodiment described above is illustrative and not restrictive, and under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within the scope of the present invention.
Claims (11)
1, realize the method for multimedia conference booking business, may further comprise the steps:
(1) judge whether conference terminal is to defer to the H.323 conference terminal of standard, if not, execution in step (7);
(2) satisfy H.323 conference terminal, gateway, the multipoint control unit registration to the gatekeeper respectively of standard;
(3),, continue to carry out if agree if the gatekeeper disagrees with the process of registering then closing session reservation;
(4) satisfy the conference terminal of standard H.323 and the conference reservation information of setting is filled into the field that is used for protocol extension in the message body of H.323 standard code and does not give definition;
(5) the satisfied H.323 conference terminal of standard sends the message body of H.323 standard code to the gatekeeper, comprises described field of not giving definition in the described message body;
(6) message body that receives of gatekeeper's dissection process, and the message body after will handling is returned conference terminal, execution in step (17);
(7) satisfy H.323 gateway, the multipoint control unit registration to the gatekeeper respectively of standard;
(8),, continue to carry out if agree if the gatekeeper disagrees with the process of registering then closing session reservation;
(9) conference terminal of described non-H.323 standard is filled into the field that is used for protocol extension in the non-H.323 standard message body and does not give definition with the conference reservation information of setting;
(10) conference terminal of described non-H.323 standard sends the message body of described non-H.323 standard code to gateway, comprises described field of not giving definition in the described message body;
(11) message body of the described gateway non-H.323 standard code that will receive converts to and satisfies the H.323 message body of standard code;
(12) gateway sends the message body through conversion to the gatekeeper;
(13) message body that receives of gatekeeper's dissection process;
(14) message body after the gatekeeper will handle is returned gateway;
(15) gateway converts the message body that receives to the message body of satisfying non-H.323 standard code;
(16) message body of gateway after conversion is returned in the conference terminal parsing;
(17) conference terminal is resolved the message body of returning, and display conference reservation result.
2, method according to claim 1, it is characterized in that H.323 described H.323 standards meetings terminal is filled into the conference reservation information of setting is used for protocol extension in the standard message body and does not give in the field step of definition, and the standard message body is login request message or call admission request message.
3, method according to claim 1, the conference terminal that it is characterized in that described non-H.323 standard is filled into the conference reservation information of setting and is used for protocol extension in the non-H.323 standard message body and does not give in the field step of definition, and the standard message body is login request message or call admission request message.
3, method according to claim 1, H.323 the conference terminal that it is characterized in that described H.323 standard is filled into the conference reservation information of setting and is used for protocol extension in the standard message body and does not give in the field step of definition, comprises that also described conference terminal is filled into step in the user-defined message body with the conference reservation information of setting.
4, method according to claim 1, the conference terminal that it is characterized in that described non-H.323 standard is filled into the conference reservation information of setting and is used for protocol extension in the non-H.323 standard message body and does not give in the field step of definition, comprises that also described conference terminal is filled into step in the user-defined message body with the conference reservation information of setting.
5, realize the multimedia conference system of meeting appointment business, comprising:
Satisfy the H.323 conference terminal of standard, satisfy H.323 standard multipoint control unit, the gateway with conference reservation function satisfies the H.323 gatekeeper of standard, the conference terminal of non-H.323 standard, wherein:
Satisfy standard H.323 conference terminal, satisfy standard multipoint control unit H.323, have conference reservation function gateway, satisfy between the gatekeeper of standard H.323 and connect by the IP communication network; Satisfy H.323 standard multipoint control unit realization to the control of system; The conference terminal that satisfies standard H.323 is filled into the field that is used for protocol extension in the standard message body H.323 and does not give definition with the conference reservation information of setting, and message body is sent to satisfies H.323 that the gatekeeper of standard carries out dissection process; The satisfied H.323 gatekeeper of standard receives message body and carries out returning the conference terminal of satisfied H.323 standard or having conference reservation function gateway after the dissection process, realizes information interaction; The conference terminal of non-H.323 standard is filled into the field that is used for protocol extension in the standard message body H.323 and does not give definition with the conference reservation information of setting and sends to having conference reservation function gateway by communication network; Message body with non-H.323 standard code that the gateway of conference reservation function will receive converts to satisfies the H.323 message body of standard code, and the gatekeeper of standard sends to satisfying H.323.
6, system according to claim 5 is characterized in that described communication network comprises mobile telephone network, narrow band synthesis business network and broad band Integrated service network.
7, according to the described system of claim 5, it is characterized in that the described H.323 conference terminal of standard that satisfies, the conference reservation information of setting can also be filled in the user-defined message body.
8, according to the described system of claim 5, it is characterized in that the described conference terminal that satisfies non-H.323 standard, the conference reservation information of setting can also be filled in the user-defined message body.
9,, it is characterized in that described H.323 standard message body is login request message or call admission request message according to the described system of claim 5.
10,, it is characterized in that described non-H.323 standard message body is login request message or call admission request message according to the described system of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111767 CN1253000C (en) | 2002-05-18 | 2002-05-18 | Method and system for realizing meeting appointment business |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111767 CN1253000C (en) | 2002-05-18 | 2002-05-18 | Method and system for realizing meeting appointment business |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458797A true CN1458797A (en) | 2003-11-26 |
| CN1253000C CN1253000C (en) | 2006-04-19 |
Family
ID=29426378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02111767 Expired - Lifetime CN1253000C (en) | 2002-05-18 | 2002-05-18 | Method and system for realizing meeting appointment business |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1253000C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299476C (en) * | 2004-05-28 | 2007-02-07 | 中兴通讯股份有限公司 | Method for H.323 agent server to register on gatekeeper from terminals after being agent of NAT |
| CN100341326C (en) * | 2004-03-31 | 2007-10-03 | 华为技术有限公司 | Main-caller call-out method for video conference system |
| CN101102455B (en) * | 2007-07-26 | 2010-09-01 | 中兴通讯股份有限公司 | A system and method for using conference TV terminal to query sound status of conference site |
| WO2010108404A1 (en) * | 2009-03-24 | 2010-09-30 | 华为终端有限公司 | Method, device and system for a terminal selectively participating in a conference or controlling a terminal selectively participating in a conference |
| WO2012051887A1 (en) * | 2010-10-20 | 2012-04-26 | 中兴通讯股份有限公司 | Distant view presenting system and cascading method therefor |
-
2002
- 2002-05-18 CN CN 02111767 patent/CN1253000C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341326C (en) * | 2004-03-31 | 2007-10-03 | 华为技术有限公司 | Main-caller call-out method for video conference system |
| CN1299476C (en) * | 2004-05-28 | 2007-02-07 | 中兴通讯股份有限公司 | Method for H.323 agent server to register on gatekeeper from terminals after being agent of NAT |
| CN101102455B (en) * | 2007-07-26 | 2010-09-01 | 中兴通讯股份有限公司 | A system and method for using conference TV terminal to query sound status of conference site |
| WO2010108404A1 (en) * | 2009-03-24 | 2010-09-30 | 华为终端有限公司 | Method, device and system for a terminal selectively participating in a conference or controlling a terminal selectively participating in a conference |
| WO2012051887A1 (en) * | 2010-10-20 | 2012-04-26 | 中兴通讯股份有限公司 | Distant view presenting system and cascading method therefor |
| CN102457699A (en) * | 2010-10-20 | 2012-05-16 | 中兴通讯股份有限公司 | Distant view presentation system and cascade method thereof |
| CN102457699B (en) * | 2010-10-20 | 2015-08-12 | 中兴通讯股份有限公司 | Distant view presents system and Cascading Methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1253000C (en) | 2006-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1158819C (en) | Method and system for exchanging information between multimedia network nodes | |
| CN1890931A (en) | System, apparatus, and method for establishing circuit-switched communications via packet switched network signaling | |
| CN1611084A (en) | Circuit-switched and packet-switched communications | |
| CN1816134A (en) | Multi-spot video conference system and media processing method | |
| CN1553676A (en) | Method for holding common audio-video meeting via various protocol terminals | |
| JP2004064734A (en) | Telecommunication system, gateway, and transmitting method for streaming video content | |
| CN112543301B (en) | IMS-based intelligent conference system and implementation method thereof | |
| CN1929600A (en) | System and method for realizing remote monitoring control by using IP videophone | |
| CN101548524A (en) | Interworking control between different communication parties | |
| CN1941783A (en) | Intelligent border element | |
| CN1798139A (en) | Devices and method of providing multimedia service for different network terminals | |
| CN101068238A (en) | Method and system for messaging between public exchange telephone network terminal and immediate communication terminal | |
| CN1253000C (en) | Method and system for realizing meeting appointment business | |
| CN1266885C (en) | Method for realizing monitoring based on soft switch | |
| CN1761261A (en) | Method for implementing capability negotiation in combined service | |
| CN1968218A (en) | System and method for implementing dialup by clicking | |
| CN1497903A (en) | Method and system for submitting control and monitoring function for telecommunication exchange area | |
| CN1201546C (en) | Method, gateway and arrangement in communication network | |
| WO2008086741A1 (en) | Method, apparatus and system for realizing et.38 facsimile service in internet | |
| CN1190047C (en) | Method and system for realizing personal number servie of blended telephone net and IP net user service | |
| CN1882116A (en) | Mobile switching centre built in video gateway and method for realizing multimedia interconnection | |
| CN1295926C (en) | Video conference method and system | |
| CN1838790A (en) | PTT service realizing system and method based on VoIP technique | |
| CN1787632A (en) | Method and system for sending video signal between different types of user agents | |
| CN1310540A (en) | Network intercommunication implementing server |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060419 |
|
| CX01 | Expiry of patent term |