KR100747718B1 - Apparatus and method of providing conference service in voip system - Google Patents

Abstract

A conference service supply method of a VoIP(Voice over Internet Protocol) system and a device therefor are provided to allow participants participating in a conference to share contents while a conference service is provided in the VoIP system, thus the participants can more effectively progress the conference through the shared contents. The first participant accesses a contents server, and uploads contents(S100). The first participant demands a conference call to a conference server(S110). The conference server transmits address information of the contents server as demanding participation to the second participant participating in a conference(S120-S140). The second participant downloads the contents after accessing the contents server(S150).

Description

Method and apparatus for providing conference service of VPN system {apparatus and method of providing conference service in VoIP system}

1 is a flow chart for explaining the flow of providing a general conference service.

2 is a block diagram illustrating a conference service providing system according to a preferred embodiment of the present invention.

3 is a view illustrating a flow of providing a service by a conference service providing system according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a method of providing a conference service according to a preferred embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: conference server 110: conference module

120: conference content control module 130: content management module

140: media resource management unit 150: call processing module

200: media server 210: media transfer module

220: media management module 230: signal processing module

300: content server 310: conference management module

320: content upload module 330: content download module

340: content access module

The present invention relates to a method and apparatus for a multiparty conference service of a VoIP system.

The conference technology can be implemented with a conference control protocol related to conference policy and control, a signaling protocol related to conference call setup, and a media transmission protocol responsible for transmitting multimedia data. The signaling protocol is a Voice of IP. Session Initiation Protocol (SIP), a protocol for realizing services, and H.323 are widely used as standards, and Real-time Transport Protocol (RTP), a protocol for transmitting multimedia data such as audio and video in real time, is used for media transmission. Used as standard protocol.

In general, a multimedia conference system, an application server (AS) manages signal related dialog information of terminals participating in a multimedia conference, and a media server (Media Server) collects media from terminals participating in the multimedia conference. Mixing is implemented in a form that is distributed in a batch to the terminals participating in the multimedia conference.

Such a conference server may be implemented as an interface processor, a conference policy processor, and a media processor.

The interface processor handles SIP signaling between participants and handles the central role of the conference server.

The conference policy processing unit serves as a database in which conference information or participant information is stored, and participants can directly access the conference policy processing unit to store their own information or use the stored information.

The media processing unit actually handles the media connection by the participants and mixes the mider data exchanged between the participants.

Participants and the conference server are connected according to SIP, and participants exchange media data according to RTP through the media processing unit.

1 is a flowchart illustrating a flow of providing a general conference service.

Referring to FIG. 1, a plurality of application terminals (UAs) owned by a participant and using a conference service, and an application server (application server: application server) of a conference server exchange messages.

When the first application terminal UA1 requests a call (INVITE) (S10), that is, when the application server of the conference server requests a call (conference call call) from the first application terminal, a response (100 Trying) to it is requested. (S 11), and transmits the participant information to the media server in order to establish a conference call call requested by the first application terminal (OPEN) (S 12).

When the participant information is received, the media server establishes a conference for the conference call call and responds to the application server (ACK) (S 13).

The application server requests participation by transmitting conference information established by the media server to a second application terminal which is a participant (INVITE) (S 14).

The second application terminal answers the participation to the application server (180 ringing) (S 15), and when the second application terminal responds to the conference, the application server sends the media data to the application terminal through the conference opened by the media server. A media play is requested (S 16), and the media server transmits the media data through the application server through the established conference (S 17).

Then, the application server establishes a session with each application terminal (S 18), and when a response (200 ok) for a call requested from the second application terminal is received (S 19), transmitting the media data to the media server. Request a PLAY STOP (S 20), and if confirmation is received from the media server (ACK) (S 21), and transmits a response to the call request to the first application terminal (200 ok) (S 22). .

The application server provides a conference service by connecting through a session established between the first application terminal and the second application terminal (S 23, S 24, S 25).

The general method of providing a conference service is to simply provide a conference service for voice when the PSTN is based, and add various functions (video conferencing, media data transmission, etc.) when the IP is based. .

However, the method of providing the conference service developed so far is such as a video conference where participants can make a call while looking at the other's face or a media conference which transmits simple media data to the participants. Functions should be added to further accomplish the purpose.

For example, if a participant in a conference calls while sharing a presentation (presentation), the conference can be conducted more efficiently, so it is necessary to develop functions that can effectively achieve the purpose of the conference service. Do.

Accordingly, the present invention has been made to meet the necessity as described above, and provides a method and apparatus for providing a conference service of a VoIP system that enables a participant to share content while providing a conference service in a VoIP system. The purpose is to do that.

In accordance with an aspect of the present invention for achieving the above object, when a conference call is requested from a first participant, the address information of the content server is transmitted to the second participant by joining the second participant, and a conference is generated. And a content server for storing the content uploaded from the first participant and the second participant connecting through the network to download the uploaded content.

The VoIP system according to the present invention further includes a media server that stores the media data set by the participants and transmits the media data to the participants when requested by the conference server.

The media server according to the present invention is characterized by including the media data in the SIP signaling to transmit to the participants.

The conference server according to the present invention includes address information of the content server in the assert-identity field of the participation request message (INVITE) and transmits the information to the participants.

The content server according to the present invention manages a content access module that connects to each participant through an IP network, a content upload module that is connected to a first participant, uploads content, uploaded content information, and participant authentication information. And a content download module for downloading the content corresponding to the conference in which the second participant participates.

According to another aspect of the present invention, there is provided a method of providing a conference service in a VoIP system, including: a first participant accessing a content server to upload content, a first participant requesting a conference call to a conference server, Transmitting address information of the content server while requesting a second participant to participate in the conference; and downloading the content by accessing the content server to the second participant.

In a method of providing a conference service of a VoIP system according to the present invention, when a conference call is requested, a conference server requests a transmission of media data to a media server, and the media server transmits media data set by a first participant to SIP signaling. Including and transmitting to each participant.

The downloading of the content according to the present invention may include managing content information uploaded by the content server and authentication information of the first participant, and downloading the content corresponding to the first participant when the second participant connects. Include.

In the step of transmitting the address information of the content server according to the present invention, the address information of the content server is included in the assert-identity field of the participation request message (INVITE) and transmitted to the participants.

Hereinafter, a method and apparatus for providing a conference service of a VoIP system according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a conference service providing system according to a preferred embodiment of the present invention.

Referring to FIG. 2, the conference service providing system includes a conference server 100, a media server 200, and a content server 300, and the conference server 100. The media server 200 and the content server 300 are connected through an IP network.

Call Session Control Function (CSCF) that registers application terminals 500 of participants participating in the conference and routes SIP signaling to the appropriate server, and registers / changes management, authentication, authorization, location, and session of participants. A home subscriber server (HSS) is provided to handle routing, billing, and the like.

In addition, the conference server 100 may include a conference module 110, a conference contents control module 120, a contents management module 130, a media resource module 140, and the like. The call processing module 150 may be provided, and the media server 200 may include a media transmission module 210, a media management module 220, and a signal processing module 230. The content server 300 may include a conference management module 310, a content upload module 320, a content download module 330, and a content access module 340.

In the following detailed description of the present invention, the participant uses the application terminal 500 owned by the participant to give the same meaning to the application terminal 500 and the participant.

First, when the components of the conference server 100 are described, the call processing module 150 processes SIP signaling and connects participants to a conference by connecting a call through a session established between participants according to a participant's call request. Involve

The media resource manager 140 manages a media resource capable of transmitting media data stored in the media server 200 to participants through SIP signaling.

The content management module 130 manages a content service in which participants upload and download content (presentation material) through a plurality of conferences set up.

That is, the content management module 130 may register / manage identification information of the participant when the content service is requested from the participant. If the identification information of the participant requesting the conference call is registered, the content management module 130 may access the corresponding conference. Allow participants to download content through content server 300.

The conference content control module 120 controls the participants to download the content through the conference set up.

The conference module 110 transmits the shared conference information to the content server 300 where the participants share the content through the established conference.

In addition, the signaling processing module 230 of the media server 200 processes the SIP signaling and transmits the stored media data to the participants through the SIP signaling.

The media management module 220 manages stored media data and manages media data for each participant.

The media transmission module 210 allows the media data managed by the media management module 220 to be included in SIP signaling and transmitted to the participants. That is, the media transmission module 210 includes the media data corresponding to the participant requesting the conference call in SIP signaling and transmits it to other participants.

The content access module 340 of the content server 300 allows participants to access the content server 300 through an IP network.

The content upload module 320 allows a participant to upload content by accessing the content server 300, and the content download module 330 downloads the uploaded content to participants who access.

The conference management module 320 manages shared conference information among a plurality of configured conferences, and manages participant information participating in the shared conference, content information shared through the shared conference, and the like.

3 is a diagram illustrating a flow of providing a service by a conference service providing system according to an exemplary embodiment of the present invention.

Referring to FIG. 3, a participant who wants to share content through a conference, the first participant, accesses the content server 300 through the IP network using the first application terminal 500, and sends the content to the upload module 320. The content is uploaded and registered (1).

In this case, the content server 300 may process authentication through a phone number of an application terminal 500 owned by a participant to access, and the content management module 310 manages uploaded content information and authentication information.

The first participant requests a conference call to the conference server 100 (2).

The first participant transmits identification (name) information, content information, and authentication information (telephone number) of the conference to the conference server 100 while requesting a conference call.

When the conference call is requested, the media resource manager 140 of the conference server 100 requests the media server 200 to transmit the media data (3).

The media transmission module 210 of the media server 200 transmits the media data corresponding to the participant who requested the conference call among the media data managed by the media management module 220 in SIP signaling to the participants participating in the conference. (4).

In this case, the conference server 100 requests the media server 200 to transmit the media data, and the media server 200 includes the media data in a ring message 180 ringing and transmits the media data to the participants.

Then, the conference server 100 includes the address information (URL) of the content server 300 in the participation request message (INVITE) transmitted to the participants participating in the conference generated according to the conference call (5).

The conference server 100 may include the address information of the content server 300 in the asserted-identity field of the SIP header of the participation request message and transmit the address information to the application terminal 500 of the participants.

The application terminal 500 of participants participating in the conference accesses the content server 300 using the address information of the content server 300 included in the participation request message received from the conference server 100, and uploads the content. Download (6).

In addition, when the video conferencing function is implemented, the application terminal 500 should be able to select any one of a video of another participant or content downloaded from the content server 300 when the screen is displayed on the display means. By setting a specific key (for example, "*" or "#", etc.) of the 500 as a function key, the participant can change information displayed on the screen to the image or content of another participant according to the function key selection.

Meanwhile, if a participant who requested a conference call has content to be uploaded while a conference is created and uses the conference service, the participant may access the content server 300 and upload the content, and other participants may access the content server 300 to newly upload the content. The uploaded content can be downloaded.

4 is a flowchart illustrating a method of providing a conference service according to an exemplary embodiment of the present invention.

Referring to FIG. 4, a first participant who creates a conference and invites another participant accesses the content server 300 and uploads content to be shared (S 100).

The content server 300 manages uploading content information and manages authentication information and identification information of the uploading first participant.

The first participant requests a conference call to the conference server 100 (S110).

When a conference call is requested, the conference server 100 requests the media server 200 to transmit media data corresponding to the first participant (S 120).

The media server 200 includes media data corresponding to the first participant in SIP signaling and transmits the media data to other participants (S 130). In this case, the media server 200 includes the media data in the ring message 180 ringing and transmits the media data to the participants.

Then, the conference server 100 includes the address information (URL) of the content server 300 in the participation request message (INVITE) transmitted to other participants participating in the conference (S 140).

Participants access the content server 300 by using the address information of the content server 300 included in the participation request message and download the content uploaded by the first participant (S 150).

Meanwhile, if a participant requesting a conference call has content to be uploaded while a conference is created and using the conference service, the participant may access the content server 300 and upload the content, and other participants may access the content server 300 to newly upload the content. The uploaded content can be downloaded.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

As described above, according to the present invention, the participants in the conference can share the content while providing the conference service in the VoIP system, and the participants in the conference can conduct the meeting more effectively through the shared content.

Claims (9)

In the VoIP system, When a conference call is requested from a first participant, the conference server transmits address information of a content server while requesting a participation from a second participant, creates a conference, and joins the participant; And A content server storing content uploaded from the first participant, and wherein the second participant accesses through a network to download the uploaded content. The method of claim 1, wherein the VoIP system, And a media server for storing media data set by the participant and transmitting the media data to the participants when requested by the conference server. The method of claim 2, wherein the media server, And the media data is included in SIP signaling and transmitted to the participants. The method of claim 1, wherein the conference server, And the address information of the content server is included in an assert-identity field of an participation request message (INVITE) and transmitted to the participants. The method of claim 1, wherein the content server, A content access module for connecting with each of the participants through an IP network; A content upload module connected to the first participant and uploading the content; A content management module managing the uploaded content information and authentication information of the participant; And And a content download module for downloading the content corresponding to the conference in which the second participant participates when the second participant is connected. In the conference service providing method of the VoIP system, A first participant accessing a content server to upload content; Requesting, by the first participant, a conference call to a conference server; Transmitting, by the conference server, address information of the content server while requesting a participation from a second participant participating in a conference; And the second participant accessing the content server to download the content. The method of claim 6, Requesting, by the conference server, transmission of media data to a media server when the conference call is requested; And And providing, by the media server, the media data set by the first participant to SIP signaling and transmitting the media data to each participant. The method of claim 6, wherein downloading the content comprises: Managing, by the content server, the uploaded content information and authentication information of the first participant; And And when the second participant accesses, downloading content corresponding to the first participant. The method of claim 6, wherein the transmitting of the address information of the content server comprises: And providing the address information of the content server in the assert-identity field of the participation request message (INVITE) to the participants.

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