WO2010133061A1

WO2010133061A1 - Method and apparatus for implementing video conferencing with vxml

Info

Publication number: WO2010133061A1
Application number: PCT/CN2009/074378
Authority: WO
Inventors: 周大刚
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-05-22
Filing date: 2009-10-09
Publication date: 2010-11-25
Also published as: CN101895715A; CN101895715B

Abstract

A method and apparatus for implementing video conferencing with VXML is provided, wherein a user dialing a corresponding access number triggers the VXML server script to extend the object, according to a self-defined classid, so as to form a create-conference tag, a call-out tag, a join-conference tag, an event-waiting tag and a stop-conference tag, wherein said call-out tag, join-conference tag and event-waiting tag are asynchronous VXML tags; the video conference function is enabled by means of the combined use of said function tags and video parameters. By means of extending the object tag and utilizing the video parameters, the present invention enables VXML to support video conferencing and extends the applicability of the VXML standard, while allowing a plurality of users to be called at the same time during a conference.

Description

TECHNICAL FIELD The present invention relates to the field of network communications, and in particular, to a method and apparatus for implementing a video conference through VXML. Background technique

VXML is an XML-based p-language language. XML can extend the standard language and is an abbreviation of Extensible Markup Language. VXML is Voice Extensible Markup Language (VoiceXML). VXML supports voice browsing and defines voice-related tags. Since the tag functions in the VXML standard are relatively simple, as the business develops, more complex functions, such as video conferencing, will be involved in the future. Thus, VXML is available. The label is hard to meet the demand. First, the tags defined in the VXML 2.0 standard are all voice-based and do not support video. Second, existing VXML tags are synchronous, so tags in VXML scripts are serial when executed. As shown in Figure 1, it is a schematic diagram of the synchronous transit label in the VXML2.0 standard. The figure shows the transfer label. When the p is executed to the transfer, the called party and the called party enter. In the call state, the execution flow of the script will remain blocked in this tab, and the entire process can continue after the call ends. Then the script executes to another transfer, and the execution flow of the script will block the call state of the other caller and the called party. For a conference, the asynchronous label needs to be supported, because multiple users may need to be called out during the conference. After the user answers, the user is added to the conference. If the labels are synchronized, multiple conferences cannot be called simultaneously in the conference. user. Moreover, the existing VXML is only used for ordinary calls, and only two users, the calling party and the called party, can exist at the same time, and the power of the conference cannot be realized. Enter the functionality of multiple users. SUMMARY OF THE INVENTION In view of the deficiencies in the prior art described above, the present invention implements a video conferencing method through VXML, extends the object tag in VXML, and defines a series of tags for video conferencing. These tags extend the existing VXML tags, add support for video parameters, and define partial asynchronous tags. These asynchronous tags do not need to wait for the specified action to return after performing the specified actions. The VXML process continues to execute downwards. Call multiple users at the same time in a conference. According to an aspect of the invention. First, a method for implementing video conferencing through VXML is provided. According to the method of implementing video conference in VXML according to the present invention, when a user dials a corresponding access code, a script in the VXML server is triggered, and a custom classid extended object label is formed to create a conference label, an outgoing call label, and a conference. The label and the stop conference label; the method for implementing the video conference includes the following steps:

(1) The VXML server invokes the creation of a conference label and specifies video parameters to create a video conference;

(2) After the return value of the created conference label is successful, the VXML server adds the calling user to the conference, and then calls the outgoing call label to sequentially call out the called users; (3) when the called user of the outbound call returns a value When the call is successful, the VXML server calls the join conference label to join the related called user to the conference;

(4) The VXML server invokes the stop conference label to release all conference resources. Specifically, the method for implementing a video conference by using VXML of the present invention further includes the following subordinate technical features: 1. The object tag is configured to extend the object tag according to the custom classid; the VXML server calls the event waiting tag, and processes the return value of the outbound tag. .

2. After the VXML server executes the join conference label, it continues to execute according to the script. The return value of the conference label is processed in the event wait tag.

3. After the VXML server executes the stop conference label, it continues to execute according to the script. The return value of the stop conference label is processed in the event wait tag. Among them, in step (3), the called user is directly joined to the conference after the call is successfully sent. After step (1), when the user dials the conference access code and dials, the VXML server invokes the join conference label to join the user to the conference, or directly joins the user to the conference. Specifically, the outbound call tag further includes a calling, called, and call answer timeout parameter, and defines a parameter for obtaining an identifier assigned to the call after the call is answered. According to another aspect of the present invention, an apparatus for implementing a video conference through VXML is also provided. The apparatus for implementing a video conference by VXML according to the present invention includes: a VXML server that parses an xml document, performs interaction with a user terminal, and a module called by the VXML server according to the video conference script: creating a conference module, an outbound module, joining the conference a module and a stop conference module, wherein: a conference module is created, which is used to specify a video parameter, and a video conference platform is created; an external call module is configured to sequentially create a call sign to call out each called user; and join a conference module, configured to obtain an outgoing call response The called user is forced to enter the conference; the conference module is stopped, and all conference resources are released at the end of the conference. Further, the foregoing apparatus further includes an event waiting module, configured to process return information of the called user called by the external call module, and/or return information of the user joined by the conference module, and/or stop returning information after the conference module is executed. . When the user dials the conference access code and dials, the conference module is added to join the conference, or the VXML server directly joins the user to the conference. Compared with the prior art, the present invention has the following beneficial effects: The present invention expands the object tag, combines the use of these tags and video parameters to enable VXML to support video conferencing, and extends the scope of application of the VXML standard. At the same time, the present invention also introduces asynchronous The VXML tag can support multiple users simultaneously, which solves the problem that the prior art cannot implement multiple users in the conference. Other features and advantages of the invention will be set forth in the description which follows, and The objectives and other advantages of the invention will be realized and attained by the <RTI The drawings are intended to provide a further understanding of the invention, and are intended to be a part of the description of the invention. In the drawings: Figure 1 is a schematic diagram of the execution flow of a synchronized transit tag in the VXML 2.0 standard. FIG. 2 is a schematic flowchart of implementing a video conference according to an embodiment of the present invention. FIG. 3 is a schematic diagram of functional modules of a device for implementing a video conference according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Functionality is due to the fact that in the field of communications, the prior art is implemented based on VXML, but since the tags defined in the existing VXML 2.0 standard are all voice-based, video is not supported, and existing VXML tags are synchronous, so tags in VXML scripts are serial when executed. As a result, it cannot support video conferencing. To solve this problem, a method and an apparatus for implementing a video conference by using VXML are provided in the embodiment of the present invention. In the embodiment of the present invention, the method for implementing a video conference through VXML extends the object tag in the VXML and defines a series of tags for the video conference. These tags extend the existing VXML tags, add support for video parameters, and define partial asynchronous tags. These asynchronous tags do not need to wait for the specified action to return after performing the specified actions. The VXML process continues to execute downwards. Call multiple users at the same time in a conference. For a better understanding of the present invention, a specific implementation manner and an embodiment of implementing a video conference by VXML will be described in detail below with reference to the accompanying drawings and specific embodiments. The preferred embodiments described herein are for illustrative purposes only and are not intended to limit the invention. The embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The method for implementing video conference by VXML according to the embodiment of the present invention is further described in the following part in conjunction with FIG. 2 and the specific implementation manner. First, in order to implement the function of video conferencing, the present invention defines a VXML tag that utilizes extended video parameters and asynchronous functions, including:

1. Create a conference label, support video outbound parameters. The calling method can be defined as: classid = "method:〃 Conf/CreateConf'. Create a conference label with the video conference parameter IsVedioConf. If this parameter is set to 1, it means the conference. The conference created by the platform is a video conference. This tab is a sync label. The parameters for creating a meeting label are shown in the following table:

The return values for creating meeting labels are as follows:

Creating a meeting tag extends the object tag with a custom classid. Create a conference label with video conference parameters. If this parameter is set, the conference created by the platform is a video conference. In addition to defining the video conference parameters, you also need to define the number of channels for the conference to be used for the conference. The site number is used to create the site number.

2. Outbound call extension tag, support video outbound call parameter Outbound call tag call method can be defined as: classid="method:〃 Call/AnsyCallOut" The outbound call extension tag is an asynchronous tag, which needs to wait for the return of the call result in the event wait tag. . The parameter IsVideo indicates whether to make a video outbound call. This tag is an asynchronous tag. The parameters of the outgoing call extension tag are as follows:

Parameter name How to understand How to set

CalllD uniquely identifies a call instance. ( OUT ) A 64-bit integer variable used to hold the return value.

The default is the access code of the service, up to 25 bytes. Use this call that the user uses to notify the switch

The CLI user can use a string type parameter or a calling number that can be used. (IN) ( OP )

The calling number and called number in the system parameters. Up to 25 bytes long. The user can use the string type to notify the switch of the called call.

The CLD parameter can also use the calling number number in the system parameters. (IN)

And the called number.

IsVideo whether the video is called out 0 is not; 1 is

When the call is successfully waiting for the ringing of the called off-hook

Time Out Parameter type integer, in seconds (s).

long. (IN) ( OP ) The return value of the outgoing call extension tag is as follows:

The outbound tag extends the object tag with a custom classid. The outgoing call tag also has a video parameter indicating whether or not to make a video call. The outgoing call tag also has a calling, called, and call answer timeout parameter, and defines a parameter for obtaining an identifier assigned to the call after the call is answered. Since the outgoing call tag is an asynchronous tag, it is necessary to wait for the return of the outgoing call result in the event waiting tag.

3. Join the conference label Join the conference label call method can be defined as: classid="method://Conf/ConfAddUser" After a user is successfully called out, you can use the call to join conference tab to join the user to a conference. This tag is an asynchronous tag. Join the conference label parameters as follows:

Join the meeting label to return the following values:

Join the meeting tag to extend the object tag with a custom classid. After a user is successfully called out, you can use the Join Conference tab to join the user to a conference. The parameters to be added to the conference label are: the site number, the type or permission to join the conference, and the channel number of the user in the conference site.

4. Event Waiting Tab The event wait tag call method can be defined as: clas sid= " method: 〃 function / waitEvent' is mainly used to handle asynchronous events. This tag is a synchronization tag, it will be processed only after receiving the desired event, otherwise it should use <goto^^ Go back to itself and have VXI (VXML parser) repeat this tag until the desired event arrives. The event wait tag parameters are as follows:

The return value is as follows:

The event wait tag extends the object by a custom classid. Mainly used to handle asynchronous events. The event wait tag needs to define an output parameter for getting incoming events. These events include: the user picks up the phone, the user hangs up, the user joins in the site, the user quits the site, timeout, exception, and other related events.

5. Stop the conference tag jt 匕 tag call method can be defined as: Classid="method:// Conf/ReleaseCon After the session tag is stopped, VXI will interrupt the call of all users in the conference and release the conference resources. This tag is an asynchronous tag. After executing it once, the tag is executed and VXI will process the script. The parameters for stopping the conference label are as follows:

The return value of the stop conference label is as follows:

Stopping the meeting tag also extends the object tag with a custom classid. This tag needs to define the site number parameter. Through the combination of the above function tags, the video conferencing function can be realized, as shown in FIG. 2. 2 is a flowchart of creating a video conference by using the extended label according to the present invention, and the main steps are as follows:

1. The user enters the VXML business process by dialing the access code.

2. The script calls to create a conference label CreateConf, and specifies that the IsVedioConf parameter value is 1 to create a video conference.

3. After the video conference is successfully created, the caller is automatically added to the conference. Then use the outbound call to call out the user 1 . After the call is successful, use the Join Conference tab to add it to the conference. Outbound Calls After the outbound call is executed, the script does not stop here, and the script continues to call out other users. 2 Also after the outbound call is executed, the script will not stop here, but will continue with the following process. Here, it is also possible to continue to call out other users, and after these asynchronous tags are executed, jump to the event waiting tag for processing.

4. Process all asynchronous events and messages in the video conference in the Event Waiting tab. For example, the called response event, the user joins the conference, the user exits the conference, the user hangs up, and the like.

5. The meeting is over and all meeting resources are released. In the specific implementation process, the manner in which the user joins the conference in the foregoing step 3 includes: a. The user is called out during the conference. After the user answers, the user is directly added to the conference without using the conference label. b. The user dials the conference access code to join the conference. The user dials the access code to trigger a VXML. Business, in this business, use the Join Conference tab to join the user to the conference that has already been created. The event that the user joins the conference can be obtained in the event wait tag of the script. c. The user dials the conference access code by dialing in. After dialing, the conference is added to the label to join the user to the conference. The manner in which the conference ends in step 5 of the method of the present invention includes: 1. The script stops the conference by using the stop conference label.

2. If all members of the meeting have quit, the meeting will be automatically terminated. This can be controlled by the VXML parser. The VXML parser knows how many members are in the meeting. In summary, the present invention can provide a richer conference function by displaying VXML tags and supporting video parameters and asynchronous tags. On the basis of the present invention, functions such as playing video and video in a conference can be further extended. VXML can support video conferencing. FIG. 3 is a schematic diagram of a function module of a device for implementing a video conference according to an embodiment of the present invention. As shown in FIG. 3, an apparatus for implementing a video conference according to the present invention includes: parsing an XML document, and performing interaction with a user terminal. On the basis of the VXML server, the conference module 31 is created, and the function of creating a conference is performed according to the foregoing creation of the conference label; the outbound call module 32, 4 performs the outbound call function according to the outbound call label; and joins the conference module 33, and performs the acquisition according to the join conference label. The function of the user who joins the call to join the conference; the time waiting module 34 waits for the function of the tag execution time waiting according to the above event; the conference module 35 is stopped, and the function of stopping the conference is stopped according to the stop of the conference tag. The method for implementing video conference by using the label combination of the embodiment of the present invention is as follows: 1) The user triggers the VXML script by dialing the access code; 2) the script invokes to create a conference label (with video parameters) to create a video conference; 3) the video conference is successfully created. After using the outbound call tag to call out other users, after the call is successfully sent, join the conference using the Join Conference tab. In addition to the above-mentioned joining mode, there are many ways for users to join the meeting: After the call is successfully sent, the user joins the meeting directly, and does not need to use the join conference label; the user actively calls the conference join mode. In addition to creating video conferencing and event waiting tags, the outbound tag and other feature tags in the meeting are asynchronous tags. After the outbound call is executed, p will not stop here, but continue to perform the following process. The implementation here is that the asynchronous tag is executed and jumped to the event waiting tag for processing; 4) The events and messages in the video conference are processed in the event waiting tag. For example, the called response event, the user joins the conference, the user exits the conference, the user hangs up, and the like; 5) The video conference ends, and all conference resources are released. In the above description, the method for implementing a video conference through VXML in the embodiment of the present invention extends the object tag in the VXML and defines a series of tags for the video conference. These tags extend the existing VXML tags, add support for video parameters, and define partial asynchronous tags. These asynchronous tags do not need to wait for the specified action to return after performing the specified actions. The VXML process continues to execute downward. , you can call multiple users at the same time in a meeting. It should be understood that the above description of the definitions of the VXML tags and the specific steps of the specific steps are not to be construed as limiting the scope of the invention. The scope of the invention should be determined by the appended claims. .

Claims

Claim

A method for implementing a video conference through VXML, which triggers a p-book in a VXML server when a user dials a corresponding access code, and is characterized in that a custom classid extension object tag is used to create a conference tag, Calling a label, joining a conference label, and stopping a conference label; the method for implementing a video conference includes the following steps:

(1) the VXML server invokes the creation of a conference label, and specifies a video parameter to create a video conference;

(2) After the return value of the created conference label is successful, the VXML server adds the calling user to the conference, and then invokes the outbound call label to sequentially call out each called user;

(3) when the returned value of the called user of the outbound call is successful, the VXML server invokes the join conference label to join the related called user to the conference;

(4) The VXML server invokes the stop conference label to release all conference resources.

2. The method according to claim 1, wherein the event tag is further configured according to the custom classid extension object tag; in the step (2), the VXML server invokes the outbound call tag to be called After the user is called, the script continues to execute downward according to the script, and the VXML server calls the event waiting tag to obtain the return value of the outbound call tag.

3. The method according to claim 2, wherein after the VXML server performs the join conference label, the proxy continues to execute according to the script, and the return value of the join conference label is processed in the event waiting tag.

4. The method according to claim 2, wherein after the VXML server executes the stop conference label, the proxy continues to execute according to the script, and the return value of the stop conference label is processed in the event wait tag.

5. The method of any of claims 1 to 4, characterized in that, in step (3), the called user is directly joined to the conference after the call is successfully made.

6. The method of claim 5, wherein, after the step (1), when the user dials the conference access code and dials, the VXML server invokes the join conference label to apply the user strength. Enter the meeting or join the user directly to the meeting.

7. The method according to claim 6, wherein the outbound call tag further has a calling, called, and call answer timeout parameter, and defines a parameter for obtaining an identifier assigned to the call after the call is answered. .

8. An apparatus for implementing a video conference by VXML, comprising: a VXML server for parsing an xml document and performing interaction with a user terminal, wherein the VXML server further includes the following module called by the VXML server according to the video conference script:

Create a conference module, which is used to specify video parameters, and create a video conference platform; an external call module, which is used to sequentially create a call sign to call out each called user; and join a conference module, which is used to input the called user who obtains the external call response into the conference. ; Stop the conference module to release all conference resources at the end of the conference.

9. The device of claim 8, further comprising an event waiting module, configured to process return information of the called user called by the outbound module, and/or the user joining the joining module Return information, and/or return information after the execution of the stop conference module.

10. The device according to claim 9, wherein when the user dials the conference access code and dials, the joining conference module adds the user to the conference, or the VXML server directly connects the user Join the meeting.