WO2010108404A1 - Method, device and system for a terminal selectively participating in a conference or controlling a terminal selectively participating in a conference - Google Patents

Abstract

The embodiments of the present invention relate to a method for a terminal selectively participating in a conference, a method for controlling a terminal participating in a conference, an access server, a terminal device, and a media control server thereof, and a system for a terminal selectively participating in a conference. The method for a terminal selectively participating in a conference includes: acquiring the information of all the conferences which the terminal is able to participate in or subscribe; selecting a conference identifier of the conference needing to be participated in or subscribed from the information of all the conferences which the terminal is able to participate in or subscribe; initiating a conference access call to the selected conference identifier. The problem that a terminal can not selectively participate in a conference in the prior art is solved. The freedom degree of the terminal participating in a conference is improved; the users can selectively participate in different conferences independently, thus facilitating the users to reasonably arrange different conferences.

Description

 The terminal chooses to join or control the terminal to choose to join the conference.

 Method, device and system The application is submitted to the Chinese Patent Office on March 24, 2009, and the application number is 200910129379. 5. The Chinese patent entitled "Method, Equipment and System for Terminal Selection or Control Terminal Selection" Priority of the application, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present invention relates to the field of multimedia technologies, and in particular, to a method for selecting a terminal to join a conference, a method for controlling a terminal to select a conference, an access server, a terminal device, a media control server, and a system for selecting a conference. BACKGROUND OF THE INVENTION With the continuous development of modern enterprises, more and more enterprises are willing to choose a multimedia conference system to hold multimedia video conferences. Generally, the multimedia conference system includes a management server, an access server, and a plurality of media control servers (for example, an MCU, a Multipoint Control Unit, and a multipoint control unit in the H.323 protocol) and a terminal; a management server, which can be defined to participate. From the venue, you can also define meeting resources. A terminal can participate in multiple conferences at different times, but can only participate in one conference at a time. If a terminal needs to participate in a conference, it can be implemented by calling the conference number. It can also be implemented by the management server calling the site corresponding to the known conference number.

 In general, terminal access can be achieved in two ways:

 One way is as follows: Terminal access is achieved by calling a conference. The terminal needs to know the conference number in advance. The method of obtaining the conference number is usually that the conference convener notifies the conference terminal manually or by mail before the conference is held. The process of the terminal participating in the conference (that is, the process of terminal joining) is:

 After the terminal learns the conference number to be joined, the terminal sends a request to the access server to request the media control server address where the called conference number is located; the access server resolves the media control server address, and obtains the address of the conference site corresponding to the conference number learned by the terminal. , that is, the destination address; after the access server resolves successfully, returns the correct destination address to the terminal, and the terminal directly sends a call request to the media control server corresponding to the destination address, and the media control server answers the call after receiving the call request. After the law is verified, the terminal is allowed to join.

The drawback of this method is that the terminal can only join the meeting according to the conference number that is known in advance, and does not choose the opportunity to join the conference, which limits the freedom of the terminal to join the conference; further, since the terminal needs to obtain the conference number manually, the efficiency is low, and it is prone to leakage. The other way is as follows: The terminal does not need to know the conference number, but the terminal calls a special service number (referred to as a special service number), and the access server identifies which conference number the special service number corresponds to, and the terminal is guided to enter the corresponding The specified conference, that is, after the terminal registers with the access server, the access server is responsible for resolving the conference number according to the special service number, and the access server automatically guides the terminal to enter the pre-designated conference. The drawback of this method is that the terminal is guided by the access server and there is no freedom to join.

 In the research and practice of the prior art, the inventors of the present invention found that in the existing implementation manner, at least the following defects exist: The terminal does not have the right to select the membership before entering the conference, and can only enter the designation according to prior arrangements. Conference; Furthermore, for any special conference, when any terminal can join, because the terminal does not understand the conference topic information before joining the conference, it is impossible to choose whether to enter the conference. SUMMARY OF THE INVENTION Embodiments of the present invention provide a method for selecting a terminal to join a conference, a method for controlling a terminal to join, an access server, a terminal device, a media control server, and a system for selecting a terminal to join the conference, thereby solving the problem that the terminal cannot select the membership, thereby changing the problem. The situation in which the terminal can not be selected.

 In order to solve the above technical problem, the present invention provides a method for a terminal to select a conference, which includes: acquiring all conference information that the terminal can participate in or all conference information that can be subscribed;

 Selecting a conference identifier that needs to participate in or subscribe to the conference from all conference information that can participate or all conference information that can be subscribed;

 A conference access call is initiated to the selected conference identity.

 Correspondingly, an embodiment of the present invention provides a terminal device, including:

 An obtaining unit, configured to acquire all meeting information that the terminal can participate in or all the meeting information that can be subscribed to; the selecting unit, configured to acquire, from the obtaining unit, all the meeting information that the terminal can participate in or all the meeting information that can be subscribed to select Participate in or subscribe to the conference logo of the conference;

 a calling unit, configured to initiate a conference access call according to the conference identifier selected by the selection unit.

 Correspondingly, an embodiment of the present invention provides a method for controlling a terminal to select an admission, including:

 Receiving a request message sent by the terminal, where the request message includes: all meeting information that the terminal needs to participate in or all meeting information that the terminal needs to subscribe to;

Obtaining, according to the request message, all conference information that the terminal can participate in or all conference information that the terminal can subscribe to; Sending a request response message to the terminal, where the request response message includes: all meeting information that the terminal can participate in or all meeting information that the terminal can subscribe to.

 Correspondingly, an embodiment of the present invention provides an access server, including:

 a receiving unit, configured to receive a request message sent by the terminal, where the request message includes: all meeting information that the terminal needs to participate in or all meeting change information that the terminal needs to subscribe to;

 An obtaining unit, configured to acquire, from the management server, all the conference information that the terminal can participate in or the conference information that can be subscribed according to the request message;

 And a sending unit, configured to send a response message to the terminal, where the response message includes: all meeting information that the terminal can participate in or meeting information that can be subscribed.

 Correspondingly, an embodiment of the present invention provides a media control server, including: an access server, configured to receive a request message sent by a terminal, where the request message includes: all conference information that the terminal needs to participate in, or all conference changes that the terminal needs to subscribe to. And obtaining, according to the request message, all the conference information that the terminal can participate in or the conference information that can be subscribed to the management server; sending a response message to the terminal, where the response message includes: all conference information that the terminal can participate in or can Subscription meeting information.

 Correspondingly, the embodiment of the present invention provides a system for selecting a terminal to join, including: a terminal device, an access server, and a management server, where

 The terminal device is configured to send a request message to the access server, where the request message includes: all the conference information that the terminal needs to participate in or all the conference information that needs to be subscribed, and the receiving access server sends a response message, where the response message includes All meeting information that the terminal can participate in or all the meeting information that can be subscribed; and select the meeting identifier that really needs to participate in the meeting from all the meeting information that the terminal can participate in or all the meeting information that can be subscribed; The conference identifier of the conference is initiated to initiate a conference access call;

 The access server is configured to receive a request message sent by the terminal, obtain, from the management server, all the conference information that the terminal can participate in or all the conference information that can be subscribed according to the request message; and send a request response message to the terminal, The response message includes: all meeting information that the terminal can participate in or all meeting information that can be subscribed;

 The management server is configured to provide the access server with all meeting information that the terminal can participate in or all meeting information that can be subscribed.

According to the foregoing solution, the embodiment of the present invention solves the terminal membership by acquiring all the conference list information that the terminal can participate in or the conference list change information that can be subscribed to, and selecting the conference identifier (such as the conference number, etc.) that really needs to participate in or subscribe to the conference. In this case, the problem of participating in the conference cannot be selected, that is, the problem that the terminal cannot select the membership is solved. This embodiment improves the degree of freedom for the terminal to join, and the user can independently choose to enter different conferences, which is convenient for use. The household makes reasonable arrangements for different meetings. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

 1 is a flowchart of a method for a terminal to select a conference in Embodiment 1 of the present invention;

 2 is a specific flowchart of a method for selecting a conference by a terminal according to Embodiment 2 of the present invention;

 3 is a specific flowchart of a method for selecting a conference by a terminal in Embodiment 3 of the present invention;

 4 is a specific flowchart of a method for selecting a conference by a terminal according to Embodiment 4 of the present invention;

 FIG. 5 is a specific flowchart of a method for selecting a conference by a terminal according to Embodiment 5 of the present invention; FIG.

 6 is a flowchart of a method for controlling a terminal to join a conference in Embodiment 6 of the present invention;

 7 is a schematic structural diagram of an access server according to Embodiment 7 of the present invention;

 8 is another schematic structural diagram of an access server according to Embodiment 7 of the present invention;

 9 is a schematic structural diagram of a terminal device according to Embodiment 8 of the present invention;

 FIG. 10 is a schematic structural diagram of another terminal device according to Embodiment 8 of the present invention; FIG.

 11 is a schematic structural diagram of a media control server according to Embodiment 9 of the present invention;

 FIG. 12 is a schematic structural diagram of a system for conference access according to Embodiment 10 of the present invention. Mode for Carrying Out the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

 Referring to FIG. 1, a flowchart of a method for selecting a conference for a terminal is provided in Embodiment 1 of the present invention, where the method includes:

 Step 101: Obtain all meeting information that the terminal can participate in or all the meeting information that can be subscribed to. Step 102: Select, from all the meeting information that can participate in the meeting information or all the meeting information that can be subscribed, the meeting identifier that needs to participate in or subscribe to the meeting (for example, Conference number, but not limited to this);

Step 103: The terminal initiates a conference access call to the selected conference identifier. The all the meeting list information that can be subscribed to by the acquiring terminal or the all the meeting list information that can be subscribed to include: all the meeting list information that the terminal can participate in through the content carried in the non-standard field or all the meeting list information that can be subscribed.

 For the specific implementation process of the method in this embodiment, refer to the following specific application examples.

 Referring to FIG. 2, it is a specific flowchart of a method for selecting a conference for a terminal according to Embodiment 2 of the present invention. In this embodiment, the access server uses a gatekeeper GK (Gatekeeper, management h323 domain specified in the H.323 protocol). The device, referred to as GK or gatekeeper for example, terminal, GK and media control server (such as MCU, but not limited to this, the same below) to adopt the H. 323 protocol (ITU) on packet multimedia As a result of the communication system, the terminal obtains all the conference list information that the terminal can participate in. The terminal and the media control server are all registered on the GK. The specific implementation process is as shown in FIG. 2, including:

 Step 201: The terminal sends an access request (ARQ, Admission Request) message to the GK, that is, the terminal sends an ARQ message to the GK by using the special service number to call the GK, where the ARQ message carries all the conference information that the terminal needs to participate in, and the terminal All the conference information that needs to be involved includes the conference number that the terminal can participate in the conference, and may also include information such as the conference topic. The conference number and its information are implemented by filling in the identifier field in the non-standard field of the ARQ, and the specific implementation is implemented. The process is detailed below. Go to step 202.

 Step 202: After receiving the call of the terminal through the special service number, the GK sends a special service number to the management server (such as the conference management station, but is not limited to the same, the same below), and requests to query all the conferences that the terminal that initiated the call can participate in. Information, go to step 203.

 Step 203: The management server receives the special service number, determines the terminal number according to the special service number (that is, determines the calling number of the terminal according to the special service number), and then, according to the terminal number, queries the current management server to participate in the terminal corresponding to the terminal number. For all meeting information, go to step 204, where the meeting of the management server query includes:

 (1) All conferences containing the originating call terminal number;

 (2) All anonymous meetings without restrictions on terminal access.

 Step 204: The management server feeds back the found conference information to the GK according to a certain format, to step 205. Step 205: The GK receives the conference information, and selects a message type that returns the conference information to the terminal according to the number of conferences included in the conference information, where the message type may be an access confirmation (ACF, Admission Confirm) message or Incoming Reject (ARJ, Admission Reject) message or other H323 message:

(1) When the number of conferences is 0, that is, the conference corresponding to the terminal number, and there is no anonymous conference, the GK replies to the ARJ message of the terminal, notifies that no conference exists, rejects the conference request of the terminal, and ends the process; (2) When the number of conferences is 1, that is, only one conference corresponding to the terminal number, the GK directly resolves the conference number carried in the conference information, and obtains the network address of the media control server where the conference is located (this embodiment uses the MCU The IP address is taken as an example, and then the GK feeds back the IP address of the MCU where the conference is located to the terminal through the ACF message, to step 209;

 (3) When the number of conferences is greater than 1, that is, when there are more than two conferences corresponding to the terminal number, the GK can feed the conference information in the form of a list through ARJ or other H323 signaling messages according to a certain non-standard format. To the terminal, that is, the GK returns the conference list information to the terminal, to step 206.

 Step 206: The terminal receives the conference list information returned by the GK, and displays the conference list information, that is, the terminal displays the received conference information. The optional display mode is WEB mode or TV interface mode, and the user can select a suitable one according to his own needs. Conference number, go to step 207.

 Step 207: The terminal sends the conference number that the user has selected to the GK, to step 28;

 Step 208: The GK receives the conference number sent by the terminal, and resolves the network address of the media control server where the conference corresponding to the conference number is located (in this embodiment, the IP address of the MCU is taken as an example), and the GK uses the ACF message to set the IP address of the MCU where the conference is located. The address is fed back to the terminal, to step 209;

 Step 209: The terminal receives the network flow address of the media control server (in this embodiment, the IP address is taken as an example), and initiates a call according to the IP address of the media control server, and interacts with the media control server. After the verification succeeds, the terminal is accessed. Join the meeting and you can participate in the meeting.

 The technical solution of the method for joining a terminal provided by the implementation of the second embodiment of the present invention is as follows. In this technical solution, all the conference information and the special service number that the terminal needs to participate in the ARQ message are implemented by using the non-standard field in the ARQ message. That is to say, the non-standard protocol extension between the GK and the terminal is as follows: According to the implementation process, the non-standard protocol between the GK and the terminal includes: The ARQ message that the terminal initiates the special service number call needs to add a non-standard field (declaring the acquisition terminal can All the conference information involved, and the ARJ or other H323 messages returned by the GK to the terminal need to add non-standard fields (carrying all the conference list information that the terminal can refer to). The following describes its implementation in detail: First, let's take a look at the specific content of non-standard fields in ARQ messages.

 Refer to the H225 protocol for the content of the non-standard field of the Remote Access Service (RAS) message (for example, including ARQ messages, ACF messages, and ARJ messages, but not limited to this), and use NonStandardParameter to define non-standard fields. H323 is a framework protocol, specifically specifying the interaction process, and H225 is to define a specific H323 message field, such as ARQ, registration request (RRQ, Registration Request), and how to fill in the fields. The specific definition procedure is:

 NonStandardParameter : : = SEQUENCE

{ nonStandardldentif ierNonStandardldentif ier,

 Data OCTET STRING

 }

 Among them, the definition program of NonStandardldentifier is:

 NonStandardldentif ier : : = CHOICE

 {

 Object OBJECT IDENTIFIER,

 h221NonStandard H221NonStandard, }

 The definition program of H221NonStandard is:

 H221NonStandard : : = SEQUENCE

 { t35CountryCode INTEGER (0. . 255) ,

 t35Extension INTEGER (0. . 255) ,

 manufacturerCode INTEGER (0. . 65535) ,

}

 In this embodiment, the non-standard field in the ARQ message is defined by nonStandardidentif ier, the nonStandardidentifier is in H221NonStandard format, and the content in H221NonStandard is: t35ContryCode = 0x26, t35Extension = 0x00, manufacturerCode = OxtOll.

 Fill in the contents of H221NonStandard in <11^> format. For details on the data field, refer to Table 1. Where T is the message identifier, L is the message length, V is the message value, and the message value is the same as the request message, conference information, and the like.

 The data in the non-standard field in the ARJ message is defined by OctetString. The basic format is the same as the ARQ message. The format of the specific information is in the format of <11^>. For details, see Table 2.

 All the conference information that the terminal can participate in is displayed in the form of conference list information. The conference list information may include: the number of conferences, that is, the number of conferences, the conference number of each conference, the conference name, the conference topic information, the start time, and the end time. The user can select the conference number that he wants to attend according to the conference list information. The form of the conference list information can be referred to Table 3.

 Table 1: List of contents of H221NonStandard

Window Disappearing Message » Cong Message Meaning Field Length Remarks Terminal ->>GK

 3⁄4lJD=0x0000, 0001 Request all conference numbers 4 bytes

 Length in message Length of this message 4 bytes Refers to the length of the request message Request information Table 2: List of contents of OctetString

Table 3: Meeting List Information

Please refer to FIG. 3 , which is a flowchart of a method for a terminal to select a conference in the third embodiment of the present invention. In this embodiment, a SIP (Session Initiation Protocol) protocol is used, and the access server uses a SIP server as an example. The SIP protocol is used between the terminal, the SIP server, and the media control server. Take the information of all the conferences that the terminal can participate in. For example, the terminal and the media control server are registered on the GK. The specific implementation process is as shown in Figure 3.

 Step 301: The terminal sends an INFO message to the SIP server by using a special service number or a Uniform Resource Identifier (URI) address. The INFO message carries all the conference information that the terminal needs to participate in, and the information carried by the INF0 message is carried. The non-standard field in the INF0 message is defined by the non-standard field in the INF0 message. The definition of the non-standard field in the INF0 message can be referred to the definition of the non-standard field in the ARQ message. The specific implementation manner is described in detail in Embodiment 2. No longer.

 Step 302: The SIP server replies 200 ok to the terminal, indicating that the INFO message sent by the terminal has been received, to step 303.

 Step 303: The SIP server forwards the special service number to the management server, and requests all the conference information that the terminal that initiated the call can participate, to step 304.

 Step 304: The management server receives the special service number, determines the terminal number according to the special service number (that is, determines the calling number of the terminal according to the special service number), and then, according to the terminal number, queries the current management server to participate in the terminal corresponding to the terminal number. For all the conference information, go to step 305, where the management server queries the basis:

 (1) All conferences containing the originating call terminal number;

 (2) All anonymous meetings without restrictions on terminal access.

 Step 305: The management server feeds back the found conference information to the SIP server according to a certain format, to step 306.

 Step 306, the SIP server receives the conference information, returns the conference information to the terminal in the INFO message format, to step 307;

 Step 307: The terminal receives the conference list information returned by the SIP server, and displays the conference list information, that is, the terminal displays the received conference information. The optional display mode is WEB mode or TV interface mode, and the user can select according to his own needs. Suitable meeting number;

 Step 308, the terminal returns 200 ok to the SIP server;

 Step 309, the terminal sends the conference number that the user has selected to the SIP server, and may send the selected conference number by invitation, to step 310;

 Step 310: The SIP server receives the conference number sent by the terminal, and resolves the network address of the media control server where the conference corresponding to the conference number is located (in this embodiment, the IP address of the MCU is taken as an example), and the SIP server sends an invitation to the media control server. INVITE) message, to step 311;

Step 311, the media control server receives the INVITE message, in response to the SIP server 200 ok message, to step 312; Step 312, after receiving the 200 ok message sent by the media control server, the SIP server feeds back to the terminal a 200 ok message carrying the success of the joining, to step 313;

 Step 313: After receiving the 200 ok message fed back by the SIP server, the terminal interacts with the media control server to complete the subsequent call process.

 In this embodiment, step 302 and step 303 have no sequence, and step 308 and step 309 have no sequence.

 It should be noted that, when the session is implemented by using the SIP protocol in this embodiment, other SIP messages may be used instead of the INFO message to implement corresponding functions, such as an OPTION message, etc., that is, the non-standard field in the BODY message body of the OPTION message is filled in. All the conference information that the terminal can participate in. Similarly, all the conference list information that the terminal in the BODY message body can participate in is filled in the non-standard field in the BOTION message body of the OPTION message fed back by the SIP server. The process that has been implemented is similar, and will not be described here. In addition, the non-standard field may be encoded, or all the conference information that the terminal can participate in or all the conference list information that the terminal can participate in may be filled in the encoded non-standard field.

 Of course, in this embodiment, it is not limited to use the INFO or OPTION message to implement all the conference list information that the request and the return terminal can participate, and may also be other messages. 4 is a specific flowchart of a method for a terminal to select a conference in the fourth embodiment of the present invention. In this embodiment, the access server uses a gatekeeper GK as an example, between the terminal, the GK, and the media control server. For example, the terminal and the media control server are registered on the GK by using the H.

 Step 401: The terminal sends a registration request RRQ message to the GK to subscribe to all the conference information, and the process of the subscription may also be implemented by using other H323 signaling, which is not limited in this embodiment. The RRQ message carries all the conferences that the terminal needs to subscribe to. The list information may be implemented by filling in the identifier field in the non-standard field of the RRQ or a certain H323 signaling, and the specific implementation process is as follows. In this step, the terminal sends the RRQ message to the access server as a heavyweight RRQ. That is, each H323 terminal sends a heavyweight RRQ to register first when registering with the access server for the first time. After the registration is successful, The lightweight RRQ is sent periodically (ie, step 405), the purpose of which is to report to the access server that it is still online. The difference between the weight-level RRQ and the lightweight RRQ is: The value of the keepAlive field is different. If the value of the keepAlive field is TRUE, it is a lightweight RRQ. If the value of the keepAlive field is FALSE, it is a heavyweight RRQ.

Step 402, after receiving the subscription request of the terminal, the GK knows that the terminal wants to subscribe to all the conference information, that is, forwards the subscription request to the management server, to step 403; Step 403: The management server receives the subscription request, registers the terminal number for sending the subscription request, performs auditing, and responds to the GK subscription result (including the subscription success or failure). If the subscription is successful, the management server can query the terminal according to the terminal number. Conference information, and record the conference information, and then feedback the conference information to the GK according to a certain format, to step 404;

 In this step, the query basis and the procedure of the management server are the same as those in the embodiment 2, and will not be described here. When the conference information changes, for example, the time of the conference changes, etc., to step 406;

 Step 404: After receiving the subscription result (including success or failure) fed back by the management server, the GK sends the subscription result to the terminal, and may send the message through an RCF (Registration Confirm) message. Of course, other messages may also be used. Sending, this embodiment is not limited.

 Step 405: The terminal periodically sends a lightweight RRQ message to the GK for registration. The lightweight RRQ is periodically sent by the terminal to the SIP server, so as to inform the SIP server that the terminal is still online, and the SIP server can communicate with the SIP server.

 In addition, in the case that the terminal periodically sends a lightweight RRQ message to the GK, the request information of the unsubscribed conference can also be modified. The specific carrying process is shown in Table 5 below.

 Step 406: When the conference list information changes, the management server updates the conference list information subscribed by the terminal, to step 407;

 Step 407, the management server sends the conference list change information to the GK; to step 408;

 Step 408, the GK forwards the received conference list change information to the terminal, and can be forwarded by the RCF message, of course, it can also be through other messages, the embodiment is not limited, to step 409;

 Step 409, the terminal receives the conference list change information fed back by the GK, the user selects the conference to participate in, and determines the conference number thereof, to step 410;

 After receiving the conference information returned by the GK, the terminal displays the conference information, that is, the terminal displays the received conference information. The optional display mode is WEB mode or TV interface mode, and the user can select a suitable conference according to his/her own needs. number.

 Step 410: The terminal initiates an ARQ call request to the GK according to the conference number or URI determined by the user, to step 411. Step 411, the GK performs parsing according to the determined conference number, and obtains a network of the conference site corresponding to the conference number in the media control server. Address (in this embodiment taking the IP address of the MCU as an example), returning the IP address of the media control server to the terminal, to step 412;

The determined conference number may be a conference number that is determined by the user when the terminal selects the conference, or may be that the conference list change information fed back by the management server received by the GK includes only one conference number; Step 412: After receiving the IP address of the media control server returned by the GK, the terminal interacts with the corresponding media control server according to the IP address of the media control server to complete the subsequent call process, and then accesses the conference site and participates in the conference.

 In this embodiment, steps 405 and 406 have no order.

 In this embodiment, the definition of the H323 signaling or the H323 message to be used may refer to the definition of the non-standard field in the RRQ or a certain H323 signaling. In specific implementation, according to different messages, the data field setting is also different, for carrying In the signaling of the subscription request, the data field is set according to Table 4; for the signaling carrying the unsubscribe request, the data field is set according to Table 5; for the signaling carrying the subscription result, the data field is set according to Table 6. Among them, in Table 6, the setting of the "Subscription Result" field is shown in Table 7. It should be noted that such an arrangement is only one embodiment of the present invention and is not intended to limit the present invention.

Table 4

table 5

Table 6

Table 7

 Item Field Description Remarks

Subscription result (success: 1, failure: 0, total 2 bytes) refresh cycle, default 30s I refresh cycle (2 bytes) II In this embodiment, the non-standard definition of the conference information, in the specific implementation, the content of the conference subscription information needs to be filled in the RRQ, RCF or a non-standard field of H323 signaling according to the definition. , or fill in the encoded non-standard field.

 It should be noted that the embodiment may be implemented by using an RRQ message, or may use a NSM message to implement a subscription request, and obtain subscription information of the conference, and is not limited to the two H323 message types, and may also adopt other message types. The technical solution of the embodiment is executed by subscribing to the request.

 Referring to FIG. 5, it is a specific flowchart of a method for a terminal to select a conference in the fifth embodiment of the present invention. In this embodiment, a SIP protocol is used to implement subscription conference information, that is, in Embodiment 4, the request message passes through the SIP protocol. The signaling implements the subscription conference information, and the specific implementation process is as shown in FIG. 5, including:

 Step 501: The terminal sends a SUBSCRIBE message or other H323 signaling to the SIP server to subscribe to the conference information. The SUBSCRIBE message carries the terminal to subscribe to all the conference information, and all the conference information of the subscription passes.

The non-standard field of the SIP signaling is filled in by the identifier field, and the specific implementation process is as described above, and is not described here again, to step 502;

 Step 502, after receiving the request for subscribing to the conference information, the SIP server knows that the terminal wants to subscribe to the conference information, that is, forwards the request for subscribing the conference information to the management server, to step 503;

 Step 503: The management server receives the request for subscribing to the conference information, registers the terminal number for sending the subscription request, and authenticates the terminal that subscribes to the conference information, and responds to the SIP server subscription result (including the subscription success or failure according to the result of the authentication, In this embodiment, the success is taken as an example. If the subscription is successful, the management server queries the conference information related to the terminal according to the terminal number, records the conference information, and feeds the conference information to the SIP server according to a certain format, to step 504. In this case, the query of the management server is the same as that in Embodiment 3, when the conference information changes, to step 506;

 Step 504: The SIP server receives the conference information fed back by the management server, and may select a message type that returns the conference information to the terminal according to the number of conferences included in the conference information, where the message type is 200 ok (subscription success) message or 4xx (subscription failed) message or other SIP message.

For example, if the number of conferences is greater than 1, the SIP server replies with a 200 ok message to the terminal, and the conference information forwarded by the management server to the SIP server is fed back to the terminal. If the number of conferences is 1, the SIP server replies with a 200 ok message to the terminal. If the number of conferences is 0, the SIP server replies to the 4xx message to the terminal, and ends the process; the SIP server can also directly forward the conference information fed back by the management server to the terminal, and the terminal receives the conference information fed back by the SIP server, and displays the conference information. The user selects the conference to participate in, and determines the conference number. After receiving the conference information returned by the SIP server, the terminal displays the conference information, that is, the terminal displays the received conference letters. The optional display mode is WEB mode or TV interface mode. Users can select the appropriate conference number according to their needs.

 Step 505: When the conference information changes, the management server updates the conference list change information to step 506. Step 506: The management server sends the updated conference list update information to the SIP server, so that the SIP server can notify the subscription of the conference information in time. The terminal updates the subscribed conference information, to step 507;

 Step 507, the SIP server sends the received updated conference list change information to the terminal, and can send the terminal through NOTIFY (notification message), but is not limited thereto, to step 508;

 Step 508, the terminal selects the conference number according to the received conference list update information; to step 509;

 Step 509, the terminal initiates an INVITE call request to the SIP server according to the conference number determined by the user, that is, re-initiating the call of the conference number that needs to be called, to step 510;

 Step 510: The SIP server performs the parsing according to the conference number of the call initiated by the terminal, and obtains the network address of the media control server of the conference site corresponding to the conference number (in this embodiment, the IP address of the MCU is taken as an example), and the corresponding call is performed according to the IP address. Media control server, to step 511;

 The determined conference number may be a conference number determined by the user when the terminal selects the conference, or may be a conference number selected from the conference list update information fed back by the management server received by the SIP server;

 Step 511, after receiving the INVITE call sent by the SIP server, the media control server corresponding to the IP address returns a 200 ok message to the SIP server, and the verification succeeds, to step 512;

 Step 512, after receiving the 200 ok message replied by the media control server, the SIP server responds with a 200 ok message (ie, the joining is successful) to the terminal, to step 513;

 Step 513: The terminal interacts with the corresponding media control server to complete the subsequent call process, that is, the terminal can access the conference site and participate in the conference.

 Correspondingly, Embodiment 6 of the present invention further provides a method for controlling a terminal to join a conference. The flowchart of the terminal is as shown in FIG. 6. The method includes:

 Step 601: The access server receives the request message sent by the terminal, where the request message includes: all the conference information that the terminal needs to participate or all the conference information that the terminal needs to subscribe to;

 Step 602: The access server obtains, from the management server, all conference information that the terminal can participate in, or all conference information that the terminal can subscribe to, according to the request message.

Step 603: The access server sends a request response message to the terminal, where the request response message includes: all meeting information that the terminal can participate in or all meeting information that the terminal can subscribe to. Preferably, after obtaining all the conference list information that the terminal can participate in, or the conference list change information that can be subscribed to, the method may further include: determining whether the number of conferences that the terminal can participate in or subscribing is plural, and if there are multiple, Sending the request response message to the terminal specifically includes:

 All the conference list information that can be accessed by the terminal carried in the non-standard field of the ARJ and the SIP message is sent to the terminal; or the conference list change information that can be subscribed by the terminal carried in the non-standard field of the RCF message or the notification message is sent to the terminal.

 Preferably, the method may further include: if it is determined that the number of conferences that the terminal can participate in or subscribe to is one, parsing a network address of the media control server where the conference identifier of the conference is located, and setting a network address of the media control server Send to the terminal.

 The specific implementation process of the method in this embodiment is described in detail in the foregoing embodiment 2, the embodiment 3, the embodiment 4, and the embodiment 5, and details are not described herein again.

 Based on the foregoing method, an access server is further provided in Embodiment 7 of the present invention. The schematic diagram of the structure of the access server is as shown in FIG. 7, and includes: a receiving unit 71, an obtaining unit 72, and a sending unit 73, where The receiving unit 71 is configured to receive a request message sent by the terminal, where the request message includes: all the conference information that the terminal needs to participate in, or all the conference change information that the terminal needs to subscribe to; the obtaining unit 72 is configured to: according to the request message, The management server obtains all the conference information that the terminal can participate in or the conference information that can be subscribed to. The sending unit 73 is configured to send a response message to the terminal, where the response message includes: all conference information that the terminal can participate in or can subscribe. Meeting information.

 On the basis of FIG. 7, the access server may further include: a determining unit 74 and a parsing unit 75, and a schematic structural diagram thereof is shown in FIG. 8. The determining unit 74 is configured to be used according to the acquiring unit. If the number of conferences that the terminal can participate in or subscribe to is obtained by the obtained terminal, the sending unit is specifically configured to be carried in the non-standard field of the ARJ or the SIP message. All the conference information that the terminal can participate in is sent to the terminal; or the conference information that can be subscribed by the terminal carried in the non-standard field of the RCF message or the notification message is sent to the terminal.

 If the number of conferences that the terminal can participate in or subscribe to is one, the method further includes: a parsing unit 75, configured to parse a network address of the media control server where the conference number of the conference is located, and send the network address of the media control server Give the terminal.

 In a preferred embodiment, the receiving unit is further configured to: receive, by the management server, the conference change information that the terminal can participate in or can subscribe to in the conference information;

 The sending unit is further configured to send the conference change information received by the receiving unit to the terminal.

For the implementation process of the functions and functions of each unit in the access server, refer to the corresponding implementation in the above method. The process is not repeated here.

 The access server can be integrated in the media control server or can exist independently without any device. Correspondingly, the embodiment 8 of the present invention further provides a terminal device. The structure of the terminal device is as shown in FIG. 9. The device includes: an obtaining unit 91, a selecting unit 92, and a calling unit 93, where:

 The obtaining unit 91 is configured to acquire all meeting information that the terminal can participate in or all the meeting information that can be subscribed to. The selecting unit 92 is configured to obtain, from the obtaining unit 91, all the meeting information that the terminal can participate in or can subscribe. The conference identifier of the conference that is required to participate in or subscribe to the conference is selected in the conference information. The call unit 93 is configured to initiate a conference access call according to the conference identifier selected by the selection unit 92.

 The obtaining unit includes: a sending subunit and a receiving subunit, where the sending subunit is configured to send a request message to the access server, where the non-standard field of the request message includes all meeting information that the terminal needs to participate in or All the conference information that the terminal needs to subscribe to; the receiving subunit is configured to receive a response message sent by the access server, where the non-standard field of the response message includes all conference information that the terminal can participate in or all conference information that the terminal can subscribe to. .

 On the basis of FIG. 9, the terminal device may further include: a determining unit 94 and an address obtaining unit 95, as shown in FIG. 10, wherein:

 The determining unit 94 is configured to: when the selecting unit 92 selects a conference to which the terminal needs to participate or a conference to be subscribed to, and the joining time of the multiple conferences conflicts, it is necessary to determine that the terminal really needs to participate. a meeting, and send a meeting that needs to be really attended to the address obtaining unit;

 The address obtaining unit 95 is configured to: when receiving a conference that is sent by the determining unit 94 that the terminal really needs to participate in or subscribe to, obtain the conference identifier that the terminal really needs to participate in or subscribe to the conference. Corresponding media control server network address, and sending the network address of the media control server to the calling unit;

 The calling unit 93 is specifically configured to: after receiving the network address of the media control server that needs to call the conference sent by the address obtaining unit 95, initiate a conference to the network address of the media control server corresponding to the conference identifier of the selected conference. Access the call.

 For the implementation process of the functions and functions of the units in the terminal device, refer to the corresponding implementation process in the foregoing method, and details are not described herein again.

The embodiment 9 of the present invention provides a media control server 11 , which is shown in FIG. 11 . The access server 111 is configured to receive a request message sent by the terminal, where the request message includes: all the conferences that the terminal needs to participate in. Information or terminal needs to subscribe to all meeting change information; and according to the request message from the management server All the conference information that the terminal can participate in or the conference information that can be subscribed to are obtained; the response message is sent to the terminal, where the response message includes: all the conference information that the terminal can participate in or the conference information that can be subscribed.

 The access server includes: a receiving unit, an obtaining unit, and a sending unit, wherein functions and functions of the respective units are shown in FIG. 7, and FIG. 8, and details are not described herein again.

 The embodiment 10 of the present invention further provides a system for selecting a terminal to join, including a terminal device and an access server, and of course, a management server and a media control server. The structure of the system is as shown in FIG. 12, and the system includes The terminal device 121 (which may be any terminal device or multiple terminal devices, for convenience of description, only the terminal device A is taken as an example), the access server 122, the management server 123, and the media control server 124 (implementation of the present invention) The technical solution provided by the example does not limit the number of the media control server, where the terminal device A is configured to send a request message to the access server 122, where the request message includes: all meeting information that the terminal needs to participate in or needs to subscribe. All the conference information, and the receiving access server sends a response message, where the response message includes all conference information that the terminal can participate in or all conference information that can be subscribed; and all conference information that can be attended by the terminal or all conferences that can be subscribed to The choice of information really needs to participate The conference identifier of the conference (in this embodiment, the conference number can be taken as an example); and the conference access call is initiated to the conference identifier that is selected to actually participate in the conference; or the terminal device A can be obtained through the special service number to access the server 122. The conference information of all the conferences that the user can participate in, and the user can select the conference to participate in the conference according to the conference information. The access server 122 is configured to receive the request message sent by the terminal, and obtain the terminal from the management server 123 according to the request message. All the conference information or all the conference information that can be subscribed; and sending a request response message to the terminal, where the response message includes: all conference information that the terminal can participate in or all conference information that can be subscribed;

 The management server 123 is configured to receive the request message forwarded by the access server 122, obtain the terminal number according to the special service number in the request message, and query and obtain all the conference information that the terminal can participate or all that can be subscribed according to the terminal number. The conference information, the conference information that the terminal can participate in or the conference information that can be subscribed to the access server 122;

 The media control server 124 is configured to communicate with the terminal A according to the call of the terminal A, so that the terminal device A can participate in the conference in which the user participates.

 For the implementation process of the functions and functions of the various units in the system, refer to the corresponding implementation process in the foregoing method, and details are not described herein again.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be softened by means of the above. It is implemented by adding the necessary general hardware platform, and of course it can also be through hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a storage medium, such as

ROM/RAM, diskette, optical disk, etc., comprising instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or in certain portions of the embodiments. .

 The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is considered as the scope of protection of the present invention.

Claims

Rights request

A method for selecting a terminal for joining, characterized in that it comprises:

 Obtain all meeting information that the terminal can participate in or all meeting information that can be subscribed to;

 Selecting a conference identifier that needs to participate in or subscribe to the conference from all conference information that can participate or all conference information that can be subscribed;

 A conference access call is initiated to the selected conference identity.

 The method according to claim 1, wherein all the conference information that the acquisition terminal can participate in or all the conference information that can be subscribed specifically includes:

 All the conference information that the terminal can participate in or all the conference information that can be subscribed are obtained through the content included in the non-standard field.

 The method according to claim 2, wherein the all the conference information that the content acquisition terminal can participate in the non-standard field includes:

 Sending an access request ARQ message to the access server, where the non-standard field of the ARQ message includes all conference information that the terminal needs to participate in;

 Receiving an access reject ARJ message sent by the access server, where the non-standard field of the ARJ message includes all conference information that the terminal can participate in.

 The method according to claim 2, wherein all the conference information that the content acquisition terminal can participate in by the non-standard field includes: transmitting a session initiation protocol SIP signaling message to the access server, where The non-standard field of the SIP signaling message includes all conference information that the terminal needs to participate in;

 Receiving a SIP signaling response message sent by the access server, where the non-standard field of the SIP signaling response message includes all conference information that the terminal can participate in.

 The method according to claim 4, wherein the SIP signaling message comprises: an INFO signaling message and an OPTION signaling message;

 The non-standard field of the SIP signaling message includes all the conference information that the terminal needs to participate in. Specifically, the non-standard field of the BODY message body of the INFO signaling message or the OPTION signaling message includes all conference information that the terminal needs to participate in;

The non-standard field of the SIP signaling response message includes all the conference information that can participate. The non-standard field of the BODY message body of the INF0 signaling response message or the OPTION signaling response message includes all conference information that the terminal can participate in. .

The method according to claim 2, wherein the all the conference information that the content acquisition terminal can subscribe to by the non-standard field includes:

 Sending a heavyweight registration application RRQ message to the access server, where the non-standard field of the heavyweight registration application RRQ message includes all conference information that the terminal needs to subscribe to;

 Receiving a registration confirmation RCF message sent by the access server, where the non-standard field of the RCF message includes all conference information that the terminal can subscribe to.

 The method according to claim 6, wherein, after receiving the RCF message sent by the access server, the conference information that can be subscribed by the content acquisition terminal carried in the non-standard field further includes: Send lightweight RRQ information to the server;

 Receiving an RCF message sent by the access server, where the non-standard field of the RCF message includes conference change information that the terminal can subscribe to.

 The method according to claim 2, wherein the meeting information that the content acquisition terminal can subscribe to by the non-standard field includes:

 Sending a subscription message to the access server, where the non-standard field of the subscription message includes all conference information that the terminal needs to subscribe to;

 Receiving a notification message sent by the access server, where the non-standard field of the notification message includes conference information that the terminal can subscribe to.

 The method according to claim 8, wherein, after receiving the notification message sent by the access server, the conference information that can be subscribed by the content acquisition terminal carried in the non-standard field further includes:

 Receiving a change notification message sent by the access server, where the change notification message includes meeting change information.

The method according to any one of claims 3 to 9, wherein the method further comprises: when the terminal selects a conference to be attended or the subscribed conference is a plurality of conferences, and the plurality of conferences If the joining time of the meeting conflicts, it is necessary to determine a conference that the terminal really needs to participate in, and obtain the network address of the media control server corresponding to the conference identifier of the conference that actually needs to participate;

 The initiating a conference access call to the conference identifier of the selected conference specifically includes: initiating a conference access call to a network address of a media control server corresponding to the conference identifier of a conference that is actually required to participate.

 The method according to any one of claims 2 to 9, wherein the content of the non-standard field specifically includes: a message type, a message identifier, a message length, and a message value.

 12. A method for controlling a terminal to select an admission, characterized in that it comprises:

Receiving a request message sent by the terminal, where the request message includes: all meeting information that the terminal needs to participate in or all meeting information that the terminal needs to subscribe to; Obtaining, according to the request message, all conference information that the terminal can participate in or all conference information that the terminal can subscribe to;

 Sending a request response message to the terminal, where the request response message includes: all meeting information that the terminal can participate in or all meeting information that the terminal can subscribe to.

 The method according to claim 12, wherein after obtaining all the conference information that the terminal can participate in or all the conference information that the terminal can subscribe to, the method further includes:

 If the number of the conferences that the terminal can participate in or subscribe to is determined to be multiple, the sending the request response message to the terminal includes:

 All conference information that can be attended by the terminal carried in the non-standard field of the ARJ or SIP message is sent to the terminal; or

 All conference information that the terminal carried in the non-standard field of the RCF message or the notification message can subscribe to is sent to the terminal.

 The method according to claim 12, wherein the method further comprises:

 If it is determined that the number of conferences that the terminal can participate in or subscribe to is one, the network address of the media control server where the conference identifier of the conference is located is parsed, and the network address of the media control server is sent to the terminal.

 15. A terminal device, comprising:

 An obtaining unit, configured to acquire all meeting information that the terminal can participate in or all the meeting information that can be subscribed to; the selecting unit, configured to acquire, from the obtaining unit, all the meeting information that the terminal can participate in or all the meeting information that can be subscribed to select Participate in or subscribe to the conference logo of the conference;

 a calling unit, configured to initiate a conference access call according to the conference identifier selected by the selection unit.

 The terminal device according to claim 15, wherein the acquiring unit comprises: a sending subunit, configured to send a request message to the access server, where the non-standard field of the request message includes a terminal that the terminal needs to participate in. All meeting information or all meeting information that the terminal needs to subscribe to;

 The receiving subunit is configured to receive a response message sent by the access server, where the non-standard field of the response message includes all conference information that the terminal can participate in or all conference information that the terminal can subscribe to.

 The terminal device according to claim 15 or 16, wherein the terminal device further comprises: a determining unit and an address obtaining unit, wherein:

The determining unit is configured to: when the selecting unit selects a conference to be attended by the terminal or the subscribed conference is a plurality of conferences, and the joining time of the multiple conferences conflicts, it is required to determine a conference that the terminal really needs to participate in. And send a meeting that needs to be really attended to the address acquisition unit; The address obtaining unit is configured to: when receiving, by the determining unit, a conference that the terminal actually needs to participate in or subscribe to, obtain, from the access server, a conference identifier corresponding to the conference identifier that the terminal really needs to participate in or subscribe to the conference. The media control server's network address, and sends the media control server's network address to the call unit;

 The calling unit is configured to: after receiving the network address of the media control server that needs to call the conference sent by the address obtaining unit, initiate a conference access to the network address of the media control server corresponding to the conference identifier of the selected conference. call.

 18. An access server, comprising:

 a receiving unit, configured to receive a request message sent by the terminal, where the request message includes: all meeting information that the terminal needs to participate in or all meeting change information that the terminal needs to subscribe to;

 An obtaining unit, configured to acquire, from the management server, all the conference information that the terminal can participate in or the conference information that can be subscribed according to the request message;

 And a sending unit, configured to send a response message to the terminal, where the response message includes: all meeting information that the terminal can participate in or meeting information that can be subscribed.

 The access server according to claim 18, further comprising:

 a judging unit, configured to use, according to the acquisition unit, all the conference information that the terminal can participate in or the conference information that can be subscribed,

 If you judge that the number of conferences that the terminal can participate in or subscribe to is multiple, Bay IJ:

 The sending unit is specifically configured to send, to the terminal, all the conference information that the terminal that the terminal that is carried in the non-standard field of the ARJ or the SIP message can participate in; or that the terminal that is carried in the non-standard field of the RCF message or the notification message can subscribe to the conference. The information is sent to the terminal.

 The access server according to claim 18, wherein if it is determined that the number of conferences that the terminal can participate in or subscribe to is one, the method further includes:

 And a parsing unit, configured to parse a network address of the media control server where the conference number of the conference is located, and send the network address of the media control server to the terminal.

 21. The access server of claim 18, wherein

 The receiving unit is further configured to receive, by the management server, the conference change information in the conference information that the terminal can participate in or can subscribe to;

 The sending unit is further configured to send the conference change information received by the receiving unit to the terminal.

A media control server, comprising: an access server, configured to receive a request message sent by a terminal, where the request message includes: all meeting information that the terminal needs to participate in or all that the terminal needs to subscribe to The conference change information is obtained, and the conference information that the terminal can participate in or the conference information that can be subscribed is obtained from the management server according to the request message; and the response message is sent to the terminal, where the response message includes: all the conference information that the terminal can participate in. Or conference information that can be subscribed to.

 A system for selecting a terminal to join a conference, comprising: a terminal device, an access server, and a management server, where

 The terminal device is configured to send a request message to the access server, where the request message includes: all the conference information that the terminal needs to participate in or all the conference information that needs to be subscribed, and the receiving access server sends a response message, where the response message includes All meeting information that the terminal can participate in or all the meeting information that can be subscribed; and select the meeting identifier that really needs to participate in the meeting from all the meeting information that the terminal can participate in or all the meeting information that can be subscribed; The conference identifier of the conference is initiated to initiate a conference access call;

 The access server is configured to receive a request message sent by the terminal, obtain, from the management server, all the conference information that the terminal can participate in or all the conference information that can be subscribed according to the request message; and send a request response message to the terminal, The response message includes: all meeting information that the terminal can participate in or all meeting information that can be subscribed;

 The management server is configured to provide the access server with all meeting information that the terminal can participate in or all meeting information that can be subscribed.