KR100638511B1 - H.323 based packet communication network multimedia caller information service method and system therefor - Google Patents

Abstract

A method and system for multimedia caller information service in an H.323-based packet communication network providing multimedia caller information during a call connection between a caller terminal according to the H.323 protocol are disclosed. The method comprises the steps of: a) when a first setup message is generated from a calling terminal, checking whether the calling terminal is a terminal subscribed to a multimedia calling information providing service; b) when the calling terminal is a terminal subscribed to the multimedia calling information providing service, checking a called terminal capability of the setup message; c) generating a second setup message based on the first setup message and the capabilities of the called terminal and providing the second setup message to the called terminal; And d) providing multimedia calling information of the calling terminal to the called terminal according to a response from the called terminal to the second setup message.

Description

H. 323-based packet communication network method and system for the multimedia calling party information in H.323-based packet communication network and system

1 is a block diagram illustrating a multimedia origination information service system in an H.323-based packet network according to the present invention.

FIG. 2 is a signal flowchart illustrating an example of a process of providing multimedia call information according to a push method in the system shown in FIG. 1.

3 is a signal flowchart illustrating an example of a process of providing multimedia call information according to a pull method in the system shown in FIG. 1.

<Explanation of symbols for main parts of drawing>

100 and 200: terminal 300 and 301: gatekeeper

400: application server 500: media server

The present invention relates to a method and a system for multimedia caller information service in an H.323-based packet communication network. In particular, the present invention relates to an H.323-based caller providing multimedia caller information during a call connection between an originating and receiving terminal according to the H.323 protocol. A method and system for multimedia caller information service in a packet communication network.

The caller ID service is one of the caller information services that are widely used in the wired / wireless voice telephone service market. The caller ID indication service is a service provided in a circuit network, and as a result of using an existing circuit network-based signaling protocol, media provided is also limited to number (text) information.

Currently, WCDMA is used in wired circuit network for video telephony service in IMT-2000 network, and standardized to 3G-324M protocol standard by partially changing ITU-T H.324 protocol standard to 3GPP standardization organization for wireless circuit network. I use it. In addition, in the 1xEV-DO network, the H.323 protocol standard used in the wired packet network is optimized for the current wireless packet network without a separate standard standard.

Therefore, in a communication environment in which multimedia services are widely used in the future, various initial media services based on various multimedia such as audio, images, and video as well as text are provided as IP caller information based on IP packet network rather than circuit network. It is expected to require ID display service, multimedia advertisements and the like.

Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an H.323-based multimedia caller information during a call connection between a caller terminal in an H.323 protocol-based packet communication network. Provided are a method and a system for multimedia caller information service in a packet communication network.

In the H.323-based packet communication network according to the first aspect of the present invention, a method for providing multimedia origination information in a H.323-based packet communication network includes a) when a first setup message is generated from an originating terminal. Checking whether the terminal is a subscribed terminal; b) when the calling terminal is a terminal subscribed to the multimedia calling information providing service, checking a called terminal capability of the setup message; c) generating a second setup message based on the first setup message and the capabilities of the called terminal and providing the second setup message to the called terminal; And d) providing multimedia calling information of the calling terminal to the called terminal according to a response from the called terminal to the second setup message.

Preferably, the method further comprises e) stopping the provision of multimedia outgoing information to the called terminal when a connection message is generated from the called terminal.

More preferably, the method further comprises f) when the media stop request message is generated from the terminating terminal, stopping providing the multimedia outgoing information to the terminating terminal when the connection message is generated.

Advantageously, step d) comprises: d-1) receiving an alerting message as a response from the called terminal; And d-2) transmitting the multimedia outgoing information to the called terminal when the alert message includes the multimedia outgoing information receiving identifier.                         

According to an embodiment, the second setup message may include media location information corresponding to a storage location of the multimedia origination information, and step d) may include d-3) a media request including media location information from the called terminal. Receiving a message; And d-4) transmitting the multimedia outgoing information to the called terminal in response to the media request message.

In addition, the second setup message includes a service identifier or initial media related information, and the initial media related information includes a media type and a codec. More preferably, the multimedia outgoing information is generated according to a media provision condition stored in the subscriber profile, wherein the media provision condition is any one or more of basic media information, called party information, called party group information, and time zone information. It includes. Preferably, the multimedia outgoing information is provided according to the RTP / RTCP protocol, and the multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. In addition, the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, it is preferable to play the play repeatedly.

In the H. 323 based packet communication network according to the second aspect of the present invention, a method for multimedia transmission information service includes: a) when the gatekeeper receives a first setup message from a calling terminal, the calling terminal transmits multimedia. Checking whether the terminal subscribes to the information providing service and routing the first setup message to an application server; b) when the application server receiving the first setup message is received, determining the multimedia data processing capability of the called terminal of the first setup message; c) generating a second setup message at the application server based on the first setup message and the processing capability of the called terminal, and sending the second setup message to the called terminal; d) when the application server receives a response to the second setup message from the called terminal, and the multimedia sender information receivable confirmation identifier is included in the response, the application server stores the media stored in the calling terminal user's profile. Determining media to be provided to the called terminal according to provision conditions, and providing a media transmission request message to a media server according to the determination; And e) transmitting the determined media as the multimedia caller information to the called terminal by the media server according to the media transmission request message.

Advantageously, the method further comprises the steps of: f) when the connection message is generated from the called terminal, requesting the media server to stop providing the multimedia outgoing information; And g) stopping providing the multimedia origination information at the media server according to the request of step f).

Preferably, the step c) is the second setup message if it is determined in step c-1) that the terminating terminal's capability cannot process multimedia or the terminal is set to refuse to receive the multimedia call information. Providing the first setup message to the called terminal as a result; And c-2) when the capability of the called terminal is determined as a terminal capable of processing multimedia in step b), generating the second setup message in the application server including a service identifier and initial media related information, Providing the generated second setup message to the called terminal. Here, the response is an alerting message including the multimedia sender information reception possible confirmation identifier.

Preferably, the initial media related information includes a media type and a codec, and the media providing condition includes any one or more of basic media information, called party information, called party group information, and time zone information. Further, the multimedia outgoing information is provided according to the RTP / RTCP protocol, and the multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. Preferably, the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, the multimedia play information is repeatedly played.

In the H.323-based packet communication network according to the third aspect of the present invention, a method for multimedia transmission information service includes: a) when a gatekeeper receives a first setup message from an originating terminal, the originating terminal transmits multimedia. Checking whether the terminal subscribes to the information providing service and inquiring the application server for initial media-related information; b) when the inquiry server of step a) is received by the application server, the application server grasps the multimedia data processing capability of the called terminal, and according to the identified multimedia data processing capability of the called terminal, Responding; c) when the gatekeeper receives a response from the application server, the gatekeeper generates a second setup message based on the first setup message and the response from the application server, and generates the second setup message. Providing a message to the called terminal; And d) in response to the second setup message, when a media request message is generated from the called terminal and the media request message is received at the media server, multimedia origination information corresponding to the media request message is sent to the called terminal. Transmitting.

Preferably, the method further comprises e) stopping the provision of the multimedia outgoing information from the media server to the called terminal when a message for stopping the provision of the multimedia outgoing information from the called terminal is generated.

More preferably, step b) comprises the steps of: b-1) receiving the query in step a) at the application server; b-2) determining whether the capability of the called terminal is capable of processing multimedia data; b-3) If the receiving terminal has the ability to process the multimedia data as a result of the grasp in step b-2), as the response, initial media-related information corresponding to the multimedia originating information is sent to the gatekeeper. Providing; And b-4) if the called terminal does not have the capability to process the multimedia data, as a result of the determination in step b-2), providing the gatekeeper with a non-service message as the response.

In addition, step c) may include c-1) receiving the response from the application server at the gatekeeper; c-2) if the response received in step c-1) includes initial media related information, generate the second setup message based on the first setup message and the initial media related information, and generate Providing a second setup message to the called terminal; And c-3) if the response received in step c-1) is a service unavailable message, providing the first setup message to the called terminal as the second setup message.

More preferably, the called terminal generates an alert message before or after generating the media request message, and the initial media related information includes media type and media location information. The media request message is generated from the called terminal based on the initial media related information, and the multimedia origination information is generated according to the media provision condition stored in the profile of the subscriber. The media provision condition includes any one or more of basic media information, called party information, called party group information, and time zone information. Also preferably, the multimedia outgoing information is provided according to the RTP / RTCP protocol, and the multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. In addition, the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, it repeatedly plays.

In the H.323-based packet network, the multimedia outgoing information service system according to the fourth aspect of the present invention, when receiving a first setup message from an originating terminal in the H.323-based packet network, A gatekeeper for identifying whether the terminal subscribes to the multimedia call information providing service and routing the first setup message to an application server; When receiving the first setup message, grasp the multimedia data processing capability of the called terminal of the first setup message, and generates a second setup message based on the multimedia data processing capability of the called terminal and the first setup message. And provide the second setup message to the called terminal, receive a response to the second setup message from the called terminal, and if the multimedia sender information receiveable acknowledgment identifier is included in the response, the calling terminal. An application server for determining media to be provided to the called terminal according to a media provision condition stored in a user profile, and providing a media transmission request message to a media server according to the determination; And when receiving the media transmission request message, the media server for transmitting the multimedia caller information to the called terminal according to the media transmission request message.

Here, the application server generates the first setup message as the second setup message when the multimedia processing capability of the called terminal is unprocessable or rejection, and when the multimedia processing capability of the called terminal is multimedia processing. Generate the second setup message comprising a service identifier and initial media related information. In addition, the response is an alerting message including the multimedia caller information receivable acknowledgment identifier.

Preferably, the initial media related information includes a media type and a codec, and the media providing condition includes any one or more of basic media information, called party information, called party group information, and time zone information. Further, the multimedia outgoing information is provided according to the RTP / RTCP protocol, and the multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. More preferably, the multimedia outgoing information includes a repeat play request command, and the called terminal repeatedly plays the multimedia outgoing information from the beginning to the end according to the repeat play request command.

Also preferably, when the connection message is generated from the called terminal, the application server requests the media server to stop providing the multimedia outgoing information, and the media server sends the multimedia to the called terminal according to the stopping request. Stop providing outgoing information.

In the H.323-based packet network, the multimedia outgoing information service system according to the fifth aspect of the present invention is a case where the gatekeeper receives a first setup message from the originating terminal in the H.323-based packet network. A gatekeeper for checking whether the calling terminal is a terminal subscribed to a multimedia calling information providing service and inquiring an application server for initial media related information; When receiving a query from the gatekeeper, the application server for determining the multimedia data processing capability of the called terminal and responding to the gatekeeper with respect to the query according to the identified multimedia data processing capability of the called terminal; Here, when the gatekeeper receives a response from the application server, the gatekeeper generates a second setup message based on the first setup message and the response from the application server, and receives the generated second setup message. Providing to the terminal; And a media server for transmitting multimedia origination information corresponding to the media request message to the called terminal when receiving a media request message from the called terminal as a response from the called terminal to the second setup message. Include. Here, the called terminal generates an alerting message before and after or simultaneously with generating the media request message.

The application server provides the gatekeeper with initial media related information corresponding to the multimedia origination information as the response if the called terminal has the ability to process multimedia data. If the called terminal does not have the capability to process the multimedia data, as a response, a service unavailable message is provided to the gatekeeper.

In addition, when the gatekeeper receives the response from the application server, when the received response includes initial media related information, the second setup based on the first setup message and the initial media related information. Generate a message, and if the received response is a service unavailable message, provide the first setup message to the destination terminal as the second setup message.

Preferably, the initial media related information includes media type and media location information, and the media request message is generated from the called terminal based on the initial media related information. In addition, the multimedia outgoing information is generated according to a media provision condition stored in the profile of the originating terminal, the media provision condition includes any one or more of basic media information, called party information, called party group information, and time zone information. do. Further, the multimedia outgoing information is provided according to the RTP / RTCP protocol, and the multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. Preferably, the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, the multimedia play information is repeatedly played.

Also, preferably, when the media server receives the request to stop providing multimedia call information from the called terminal, the media server stops providing multimedia call information to the called terminal, and the request to stop providing multimedia call information is RTP / It is provided according to the RTCP protocol.

According to the present invention, in the H.323 protocol-based packet communication network, multimedia caller information can be provided to the called terminal during a call connection between the calling terminal and the called terminal.

Hereinafter, the present invention will be described in more detail with reference to the following examples.

1 is a block diagram illustrating a multimedia origination information service system in an H.323-based packet communication network according to the present invention.

FIG. 2 is a signal flowchart illustrating an example of a process of providing multimedia call information according to a push method in the system shown in FIG. 1.

3 is a signal flowchart illustrating an example of a process of providing multimedia call information according to a pull method in the system shown in FIG. 1.

First embodiment

Referring to FIG. 1, the multimedia outgoing information service system in the H.323-based packet network according to the first embodiment of the present invention may include at least one gatekeeper (300, 301), an application server (400), and a media server ( 500).

The multimedia outgoing information service system according to the present invention may include one or more gatekeepers, but in the present embodiment, one gatekeeper 300 and 301 will be described. It demonstrates with 300,301. However, it will be understood by those skilled in the art that the present invention is not limited by the number of gatekeepers 300.

The gatekeeper 300 has a function defined in the H.323 protocol. In addition, the gatekeeper 300 manages registration information and service profile information of a terminal registered according to the present invention. When the gatekeeper 300 receives the first setup message from the calling terminal 100 according to the present invention, the calling terminal 100 provides the multimedia calling information based on the service profile of the calling terminal. It checks whether the terminal subscribes to the service, finds out what additional service processing is necessary through service triggering on the first setup signal, and routes the first setup message to the application server 400.

When the application server 400 receives the first setup message from the gatekeepers 300 and 301, the application server 400 confirms whether the calling terminal 100 subscribes to the multimedia calling information service. In addition, the application server 400 grasps the multimedia data processing capability of the called terminal 200 of the first setup message, and based on the multimedia data processing capability of the called terminal and the first setup message. And generates the second setup message to the called terminal 200.

In addition, the application server 400 receives a response to the second setup message from the called terminal 200, and when the multimedia sender information receiving confirmation identifier is included in the response, the calling terminal 100 The media to be provided to the called terminal is determined according to the media provision condition stored in the user's profile, and a media transmission request message is provided to the media server 500 according to the determination.

When the media server 500 receives the media transfer request message from the application server 400, the media server 500 transmits multimedia caller information to the called terminal 200 according to the media transfer request message.

The application server 400 generates the first setup message as the second setup message when the multimedia processing capability of the called terminal 200 is unprocessable or unsubscribed according to a preferred embodiment. If the multimedia processing capability of 200 is multimedia capable, the second setup message including the service identifier and the initial media related information is generated.

Advantageously, said response is an alerting message comprising said multimedia caller information receivable acknowledgment identifier. In addition, the initial media related information includes a media type and a codec. The media provision condition includes any one or more of basic media information, called party information, called party group information, and time zone information.

Also preferably, the multimedia outgoing information is provided to the called terminal 200 according to the RTP / RTCP protocol.

The multimedia outgoing information according to the present invention may include one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation, and the multimedia outgoing information may include a repeat play request command. Therefore, when the called terminal 200 reproduces the multimedia transmission information from the beginning to the end according to the repetitive reproduction request command, the terminating terminal 200 repeatedly reproduces it.

In addition, when a connection message is generated from the called terminal 200, the application server 400 requests the media server 500 to stop providing the multimedia call information, and the media server 500 In response to the stop request, the provision of the multimedia outgoing information to the called terminal 200 is stopped.

Hereinafter, with reference to the accompanying drawings will be described in detail a first embodiment of the present invention.

For clarity, this description will be provided based on the assumption that the caller / caller terminals 100 and 200 are registered with the first gatekeeper 300 and the second gatekeeper 301, respectively. It will be appreciated by those skilled in the art that even when (100, 200) are both registered with a single gatekeeper, there is no difference in their primary operation.

Referring to FIG. 2, when the originating terminal 100 transmits an ARQ (Admission Request) message to the first gatekeeper 300 to set up a call from the calling terminal 100 to the called terminal 200, the call setting request is made. The gatekeeper 300 responds with an Admission Confirmation (ACF) message that accepts the call establishment request (S201).

After exchanging an ARQ / ACF message with the first gatekeeper 300 for call setup, the originating terminal 100 receives the first setup message for packet-based call setup with the called terminal 200. Send to the first gatekeeper 300. Preferably, the originating terminal 100 performs a quick call setup using the Fast Start (FS) function of H.323 (S202).

When the first gatekeeper 300 receives the first setup message from the calling terminal, the registration information and the service profile information of the calling terminal 100 are managed, and the first setup message is stored in the first setup message. Determining what additional service processing is necessary through service triggering on the mobile station (i.e., checking whether the calling terminal 100 subscribes to the multimedia calling information providing service) and the first setup to the corresponding application server 400. The message is routed (S203).

When the application server 400 receives the first setup message routed from the first gatekeeper 300, the application server 400 checks whether the calling terminal 100 subscribes to a service, and then receives a called terminal ( 200 determines the multimedia data processing capability as to whether the multimedia information can be displayed (S204).

Subsequently, the application server 400 generates a second setup message based on the multimedia data processing capability of the called terminal 200 and the first setup message, and sends the second setup message to the called terminal 200. send. At this time, when it is determined that the called terminal 200 cannot process multimedia data or the called terminal 200 is a terminal set to refuse to receive multimedia call information, the application server 400 sets the second setup. The first setup message is provided to the called terminal as a message. On the contrary, when the application server 400 determines the capability of the called terminal 200 as a terminal capable of processing multimedia, the application server 400 generates the second setup message including a service identifier and initial media related information. The generated second setup message is provided to the called terminal 200 (S205).

Preferably, the initial media related information includes a media type and a codec for multimedia transmission information to be transmitted.

When receiving the second setup message, the called terminal 200 exchanges an ARQ / ACF message with the second gatekeeper 301 to establish a call with the network, and then includes the second setup message. The initial media (Early Media) received from the network according to the service identifier and the initial media-related information is prepared and processed for processing (open the corresponding port to enter the receive mode). Subsequently, the called terminal 200 generates an alerting message as a response to the second setup message, and transmits the alerting message to the application server 400. At this time, the alert message includes a multimedia identification information reception possible confirmation identifier (S206, S207).

When receiving an alert message including the multimedia originating information reception possible confirmation identifier, the application server 400 confirms that the called terminal 200 is in a state capable of receiving a service, and the user of the originating terminal 100. The media to be provided to the called terminal 200 is determined according to the media providing condition stored in the service profile. Preferably, the media providing condition includes any one or more of basic media information, called party information, called party group information, and time zone information (S208).

Subsequently, upon determining the media to be provided, the application server 400 may transmit a media transmission request message (or command) including media information / code and a called party address (IP address, port, etc.) according to the determination. (S209).

In response to the media transmission request message, the media server 500 transmits the determined media to the destination terminal 200 as the multimedia caller information (S210 and S211).

Preferably, the multimedia origination information is provided according to the RTP / RTCP protocol. In addition, the multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. Preferably, the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, the multimedia play information is repeatedly played.

On the other hand, the application server 400 relays the alert message to the calling terminal 100 to notify that the call is connected to the called terminal 200 (S212).

When the user of the called terminal 200 confirms the multimedia outgoing information and accepts the call by pressing a receive button (not shown) of the called terminal 200 for the call, the called terminal 200 A connect message is generated from the connection message, and the connection message is provided to the application server 400 through a communication network. The connection message includes codec information for a call between both terminals, and after transmitting this, the called terminal 200 stops playing the multimedia outgoing information from the media server 500, and normalizes a call between both terminals. Get ready to handle media (Regular Media) However, since there is a possibility of a blanking problem until a call between the actual calling / receiving terminals 100 and 200 is established, it is preferable that the last screen of the multimedia outgoing information is stopped on the screen of the called terminal 200. (S213).

Subsequently, upon receiving the connection message, the application server 400 relays the connection message to the calling terminal 100, while the application server 400 receives the connection message from the user of the called terminal 200. Recognizing that the call has been accepted, and transmits a message (or command) to the media server 500 requesting the transmission of the multimedia outgoing information to the called terminal 200. Then, the media server 500 stops transmitting the multimedia outgoing information in response to the transmission medium request message and provides a confirmation message for receiving the message to the application server 400 (S214, S215, S216). ).

On the other hand, the caller / incoming terminal (100, 200) will establish a call in accordance with the connection message. However, even after media switching, if the multimedia outgoing information, which should be previously stopped due to a network problem or an IP traffic characteristic, is received by the called terminal, it is preferable that the terminal discriminates and discards it through RTP filtering (S217). .

Second embodiment

Referring to FIG. 1, the multimedia outgoing information service system in the H.323-based packet network according to the second embodiment of the present invention may include at least one gatekeeper 300, 301, an application server 400, and a media server ( 500).

The multimedia outgoing information service system according to the present invention may include one or more gatekeepers, but in the present embodiment, one gatekeeper 300 and 301 will be described. It demonstrates with 300,301. However, it will be understood by those skilled in the art that the present invention is not limited by the number of gatekeepers 300.

When the gatekeepers 300 and 301 receive the first setup message from the calling terminal 100, the gatekeeper 300 and 301 check whether the calling terminal 100 subscribes to the multimedia calling information providing service, Ask the application server 400 for media related information.

When the application server 400 receives an inquiry from the gatekeepers 300 and 301, the application server 400 determines the multimedia data processing capability of the called terminal 200 and according to the multimedia data processing capability of the called terminal 200. Respond to the gatekeepers 300 and 301 for the query. The application server 400, when the determination result, the called terminal 100 has the ability to process the multimedia data, as the response, the initial media-related information corresponding to the multimedia outgoing information to the gatekeeper ( 300 and 301, and when the grasping result indicates that the called terminal does not have the capability to process the multimedia data, as a response, a service unavailable message is provided to the gatekeeper.

When the gatekeepers 300 and 301 receive a response from the application server 400, the gatekeepers 300 and 301 generate a second setup message based on the first setup message and the response from the application server 400. The generated second setup message is transmitted to the called terminal 200. When the gatekeeper 300 or 301 receives the response from the application server 400, when the received response includes initial media related information, the gatekeeper 300 and 301 may receive the first setup message and the initial media related information. The second setup message is generated based on the received information. If the received response is a service unavailable message, the first setup message is provided to the destination terminal 200 as the second setup message. Preferably, the initial media related information includes media type and media location information.

Meanwhile, when receiving the second setup message, the called terminal 200 generates the media request message based on the initial media related information included in the second setup message, and transmits the media request message to the second request message. 2 to the media server 500 in response to the setup message. On the other hand, the called terminal 200 generates an alerting message before or after generating the media request message or at the same time.

When the media server 500 receives the media request message from the called terminal 200 as a response from the called terminal 200 to the second setup message, the media server 500 transmits a multimedia corresponding to the media request message. The information is transmitted to the called terminal 200.

Preferably, the multimedia outgoing information is generated according to the media provision condition stored in the profile of the originating terminal. The media provision condition includes any one or more of basic media information, called party information, called party group information, and time zone information. In addition, the multimedia outgoing information is provided to the called terminal 200 according to the RTP / RTCP protocol. The multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. In addition, the multimedia outgoing information includes a repeat play request command, and when the called terminal 200 plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, the play repeatedly.

Subsequently, when the media server 500 receives the multimedia call information provision stop request message from the called terminal 200, the media server 500 stops providing the multimedia call information to the called terminal 200. Preferably, the multimedia outgoing information provision stop request message is provided to the media server 500 according to the RTP / RTCP protocol.

Hereinafter, with reference to the accompanying drawings will be described in detail a second embodiment of the present invention.

For clarity, this description will be provided based on the assumption that the caller / caller terminals 100 and 200 are registered with the first gatekeeper 300 and the second gatekeeper 301, respectively. It will be appreciated by those skilled in the art that even when (100, 200) are both registered with a single gatekeeper, there is no difference in their primary operation.

Referring to FIG. 3, when the originating terminal 100 transmits an ARQ (Admission Request) message to the first gatekeeper 300 to set up a call from the calling terminal 100 to the called terminal 200, the call setting request is made. The gatekeeper 300 responds with an Admission Confirmation (ACF) message that accepts the call establishment request (S301).

After exchanging an ARQ / ACF message with the first gatekeeper 300 for call setup, the originating terminal 100 receives the first setup message for packet-based call setup with the called terminal 200. Send to the first gatekeeper 300. Preferably, the originating terminal 100 performs a quick call setup using the Fast Start (FS) function of H.323 (S302).

When the first gatekeeper 300 receives the first setup message from the calling terminal 100, the first gatekeeper 300 registers the registration information and the service profile of the calling terminal 100. Since the profile information is managed, the originating terminal 100 determines whether the calling terminal 100 is a subscribed terminal to the multimedia calling information service by calling service triggering, and transmits initial media-related information including media type and storage location information to the application server. 400) (S303).

When receiving the initial media-related information query from the first gatekeeper 300, the application server 400 to determine the multimedia data processing capability of the called terminal 200, and to determine the multimedia data processing capability of the called terminal Therefore, the first gatekeeper 300 responds to the inquiry. At this time, when the application server 400 determines that the called terminal has the ability to process multimedia data, the response includes initial media related information (media server address) corresponding to the multimedia origination information as the response. Media storage location, ID, media type, and the like, which are distinguished from each other, are provided to the first gatekeeper 300. On the contrary, if it is determined that the called terminal does not have the capability to process the multimedia data, the application server 400 provides the first non-service message to the first gatekeeper 300 as the response (S304). , S305).

When receiving a response from the application server 400 to the query in step S303, the first gatekeeper 300 sets up a second setup based on the first setup message and the response from the application server 400. A message is generated and the generated second setup message is transmitted to the called terminal 200 (S306).

In this case, when the response from the application server 400 includes initial media related information, the first gatekeeper 300 may set the second setup message based on the first setup message and the initial media related information. Generates. On the contrary, when the received response is a service unavailable message, the first gatekeeper 300 transmits the first setup message to the destination terminal 200 as the second setup message. When receiving the second setup message, the called terminal 200 exchanges an ARQ / ACF message with the second gatekeeper 301 to establish a call with the network, and then responds to the second setup message. An alerting message is generated, and the alerting message is transmitted to the calling terminal 100 through the first gatekeeper 300 (S307 and S308).

At the same time, the called terminal 200 generates a media request message based on the initial media related information included in the second setup message, and transmits the media request message to the media server 500. In response to the request message, it is ready to receive and process multimedia outgoing information (or early media) from the media server 500 (open the corresponding port, run the application according to the corresponding codec, etc.). (S309).

When receiving the media request message from the called terminal, the media server 500 transmits the multimedia origination information corresponding to the media request message to the called terminal 200 (S310).

Here, the multimedia outgoing information is provided according to the RTP / RTCP protocol, and the multimedia outgoing information includes one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. In addition, the multimedia outgoing information includes a repeat play request command, and when the called terminal 200 plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, repeats the play and repeats the information without interruption. Will be displayed.

When the user of the called terminal 200 confirms the multimedia outgoing information and accepts the call by pressing a receive button (not shown) of the called terminal 200 for the call, the called terminal 200 A connect message is generated from the connection message, and the connection message is transmitted to the calling terminal 100 through a communication network. The connection message includes codec information for a call between both terminals, and after transmitting this, the called terminal 200 stops playing the multimedia outgoing information from the media server 500, and normalizes a call between both terminals. Get ready to handle media (Regular Media) However, since there is a possibility of a blanking problem until a call between the actual calling / receiving terminals 100 and 200 is established, it is preferable that the last screen of the multimedia outgoing information is stopped on the screen of the called terminal 200. Do. At the same time, the called terminal 200 transmits a message (or command) to the media server 500 to request transmission stop of the multimedia origination information. Then, the media server 500 stops transmitting the multimedia outgoing information to the called terminal 200 (S311, S312).

On the other hand, the call / incoming terminal (100, 200) will establish a call in accordance with the connection message. However, even after media switching, if the multimedia outgoing information, which should be previously stopped due to network problems or IP traffic characteristics, is received by the called terminal, it is preferable that the terminal discriminates and discards it through RTP filtering (S313). .

Therefore, according to the above configuration, it is possible to provide the caller information of the multimedia to the called terminal during the call connection between the calling terminal and the called terminal in the H.323 protocol based packet communication network.

Although the present invention has been described in detail by the above embodiments, the present invention is not limited thereto, and variations and improvements can be made without departing from the ordinary knowledge of those skilled in the art.

Claims (56)

a) when the first setup message is generated from the calling terminal, checking whether the calling terminal is a terminal subscribed to the multimedia calling information providing service; b) when the calling terminal is a terminal subscribed to the multimedia calling information providing service, checking the called terminal's profile by checking a profile of the called terminal; c) generating a second setup message based on the first setup message and the capabilities of the called terminal and providing the second setup message to the called terminal; And d) providing multimedia originating information of the calling terminal to the called terminal according to a response from the called terminal to the second setup message. Information service method. The method of claim 1, wherein step d) d-1) receiving an Alerting message as a response from the called terminal; And d-2) if the alert message includes the multimedia origination information receiving identifier, transmitting the multimedia origination information to the called terminal. Information service method. 3. The method of claim 2, wherein the second setup message includes a service identifier or initial media related information. 4. The method of claim 3, wherein the initial media related information includes a media type and a codec. The method of claim 1, wherein the second setup message includes media location information corresponding to a storage location of the multimedia origination information. Step d) is d-3) receiving a media request message including media location information from the called terminal; And d-4) transmitting the multimedia outgoing information to the called terminal in response to the media request message. The method according to any one of claims 1 to 5, wherein the multimedia outgoing information is generated according to a media provision condition stored in the subscriber's profile. . 7. The method of claim 6, wherein the media provision condition includes at least one of basic media information, called party information, called party group information, and time zone information. Information service method. The method according to any one of claims 1 to 5, wherein the multimedia outgoing information is provided according to the RTP / RTCP protocol. 6. The method of any one of claims 1 to 5, wherein the multimedia outgoing information comprises one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. Multimedia outgoing information service method in packet communication network. The method according to any one of claims 1 to 5, wherein the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, Method of multimedia transmission information in H. 323-based packet communication network, characterized in that the repeated playback. The method of any one of claims 1 to 4, wherein the method is e) stopping the provision of multimedia outgoing information to the called terminal when the connection message is generated from the called terminal. The method of claim 1 or 5, wherein the method f) when the media stop request message is generated from the called terminal, stopping providing the multimedia outgoing information to the called terminal when the connection message is generated in the H. 323 based packet communication network. Multimedia outgoing information service method. a) when the gatekeeper receives the first setup message from the calling terminal, confirms whether the calling terminal is a terminal subscribed to the multimedia calling information providing service, and routes the first setup message to an application server. step; b) when receiving at the application server receiving the first setup message, the incoming Querying the profile of the terminal to determine the multimedia data processing capability of the called terminal; c) generating a second setup message at the application server based on the first setup message and the processing capability of the called terminal, and sending the second setup message to the called terminal; d) when the application server receives a response to the second setup message from the called terminal, and the multimedia sender information receivable confirmation identifier is included in the response, the application server stores the media stored in the calling terminal user's profile. Determining media to be provided to the called terminal according to provision conditions, and providing a media transmission request message to a media server according to the determination; And e) transmitting, by the media server, the determined media as the multimedia sender information to the destination terminal according to the media transmission request message. . The method of claim 13, wherein step c) c-1) when the capability of the called terminal is unable to process multimedia or is determined to be a terminal set to refuse receiving the multimedia outgoing information in step b), the incoming setup message is received as the second setup message. Providing to the terminal; And c-2) in step b), if the capability of the called terminal is determined to be a terminal capable of processing multimedia, generating the second setup message including the service identifier and initial media related information in the application server, and And providing the generated second setup message to the called terminal. 15. The method of claim 13 or 14, wherein the response is an alerting message including an acknowledgment identifier for receiving the multimedia sender information. 15. The method of claim 14, wherein the initial media related information includes a media type and a codec. 15. The H.323-based packet communication network according to claim 13 or 14, wherein the media provision condition includes at least one of basic media information, information for each called party, information for each called party group, and time zone information. Multimedia outgoing information service method in. 15. The method of claim 13 or 14, wherein the multimedia outgoing information is provided according to an RTP / RTCP protocol. 15. The H.323-based packet communication network of claim 13 or 14, wherein the multimedia transmission information includes at least one of text, voice, sound, image, avatar, emoticon, video, and flash animation. Multimedia outgoing information service method in. The method according to any one of claims 13 to 14, wherein the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, Method of repeatedly transmitting multimedia information in an H. 323-based packet communication network, characterized in that the repeated playback. The method according to claim 13 or 14, wherein the method f) when the connection message is generated from the called terminal, requesting the media server to stop providing the multimedia outgoing information; And g) stopping the provision of the multimedia outgoing information at the media server according to the request of step f). a) when the gatekeeper receives the first setup message from the calling terminal, checking whether the calling terminal is a terminal subscribed to the multimedia calling information providing service and inquiring an application server for initial media related information; ; b) when the inquiry server of step a) is received by the application server, the application server grasps the multimedia data processing capability of the called terminal, and according to the identified multimedia data processing capability of the called terminal, Responding; c) when the gatekeeper receives a response from the application server, the gatekeeper generates a second setup message based on the first setup message and the response from the application server, and generates the second setup message. Providing a message to the called terminal; And d) in response to the second setup message, when a media request message is generated from the called terminal and the media request message is received at the media server, transmitting the multimedia origination information corresponding to the media request message to the called terminal. Multimedia outgoing information service method in an H.323-based packet communication network comprising the step of. 23. The method of claim 22, wherein the called terminal generates an alert message before, after, or simultaneously with generating the media request message. The method of claim 22 or 23, wherein step b) b-1) receiving the query in step a) at the application server; b-2) determining whether the capability of the called terminal is capable of processing multimedia data; b-3) If the receiving terminal has the ability to process the multimedia data as a result of the grasp in step b-2), as the response, initial media-related information corresponding to the multimedia originating information is sent to the gatekeeper. Providing; And b-4) if the called terminal does not have the capability to process the multimedia data as a result of the determination in step b-2), providing the gatekeeper with a non-service message as the response; Multimedia outgoing information service method in an H.323-based packet communication network characterized in that the. The method of claim 24, wherein step c) c-1) receiving the response from the application server at the gatekeeper; c-2) if the response received in step c-1) includes initial media related information, generate the second setup message based on the first setup message and the initial media related information, and generate Providing a second setup message to the called terminal; And c-3) if the response received in step c-1) is an out of service message, providing the first setup message to the called terminal as the second setup message. Multimedia outgoing information service method in packet based communication network. 26. The method of claim 25, wherein the initial media related information includes media type and media location information. 27. The method of claim 26, wherein the media request message is generated from the called terminal based on the initial media related information. 23. The method of claim 22, wherein the multimedia outgoing information is generated according to a media provision condition stored in a profile of the subscriber. 29. The method of claim 28, wherein the media provision condition includes at least one of basic media information, called party information, called party group information, and time zone information. Information service method. 29. The method of claim 28, wherein the multimedia outgoing information is provided according to an RTP / RTCP protocol. 23. The multimedia outgoing information of claim 22, wherein the multimedia outgoing information comprises one or more of text, voice, sound, image, avatar, emoticon, video, and flash animation. Service method. 23. The method of claim 22, wherein the multimedia outgoing information includes a repeat play request command, and wherein the called terminal repeatedly plays the multimedia outgoing information from the beginning to the end according to the repeat play request command. H. 323 based packet communication network multimedia outgoing information service method. The method of claim 22 wherein the method is e) stopping the provision of the multimedia outgoing information to the called terminal by the media server when the request for stopping the provision of the multimedia outgoing information from the called terminal is generated. Multimedia outgoing information service method in network. 34. The method of claim 33, wherein the multimedia outgoing information provision stop request message is provided according to an RTP / RTCP protocol. In an H.323-based packet network, A gatekeeper for checking whether the calling terminal is a terminal subscribed to the multimedia calling information providing service and routing the first setup message to an application server when receiving the first setup message from the calling terminal; When receiving the first setup message, the profile of the called terminal is queried to determine the multimedia data processing capability of the called terminal, and the second setup is based on the multimedia data processing capability of the called terminal and the first setup message. Generating a message, providing the second setup message to the called terminal, receiving a response to the second setup message from the called terminal, and including the multimedia caller information receivable acknowledgment identifier in the response, An application server for determining media to be provided to the called terminal according to a media provision condition stored in the calling terminal user profile, and providing a media transmission request message to a media server according to the determination; And Receiving the media transmission request message, the media server for transmitting the multimedia caller information to the called terminal according to the media transmission request message. Service system. 36. The method of claim 35, wherein the application server When the multimedia processing capability of the called terminal is unprocessable or rejection, the first setup message is generated as the second setup message, and when the multimedia processing capability of the called terminal is multimedia capable, the service identifier and the initial media are generated. And generating the second setup message including the relevant information. 37. The system of claim 35 or 36, wherein the response is an alerting message including the multimedia sender information receivable acknowledgment identifier. 37. The system of claim 36, wherein the initial media related information includes a media type and a codec. 37. The H. 323 based packet communication network according to claim 35 or 36, wherein the media providing condition includes any one or more of basic media information, called party information, called party group information, and time zone information. Multimedia outgoing information service system in. 37. The system of claim 35 or 36, wherein the multimedia outgoing information is provided according to the RTP / RTCP protocol. 37. The method of claim 35 or 36, wherein the multimedia originating information comprises at least one of text, voice, sound, image, avatar, emoticon, video, and flash animation. Multimedia outgoing information service system. 37. The method according to claim 35 or 36, wherein the multimedia outgoing information includes a repeat play request command, and when the called terminal plays the multimedia outgoing information from the beginning to the end according to the repeat play request command, the multimedia play information is repeatedly played. Multimedia outgoing information service system in an H. 323 based packet communication network. The method according to claim 35 or 36, wherein the application server requests the media server to stop providing the multimedia call information when a connection message is generated from the called terminal. The media server stops providing the multimedia outgoing information to the called terminal according to the stopping request. The multimedia outgoing information service system of the H.323-based packet communication network. In an H.323-based packet network, When the gatekeeper receives the first setup message from the calling terminal, the gatekeeper checks whether the calling terminal is a terminal subscribed to the multimedia calling information providing service and inquires the application server of the initial media related information. ; When receiving a query from the gatekeeper, the application server for determining the multimedia data processing capability of the called terminal and responding to the gatekeeper with respect to the query according to the identified multimedia data processing capability of the called terminal; Here, when the gatekeeper receives a response from the application server, the gatekeeper generates a second setup message based on the first setup message and the response from the application server, and receives the generated second setup message. Provided to the terminal; And A media server for transmitting multimedia origination information corresponding to the media request message to the called terminal when receiving a media request message from the called terminal as a response from the called terminal to the second setup message; Multimedia outgoing information service system in an H. 323 based packet communication network. 45. The system of claim 44, wherein the called terminal generates an alerting message before, after, or simultaneously with generating the media request message. 46. The method of claim 44 or 45 wherein the application server is And, as a result of the determination, when the called terminal has the capability to process multimedia data, as the response, initial media related information corresponding to the multimedia originating information is provided to the gatekeeper. And a service unavailable message to the gatekeeper as the response when the mobile station does not have the capability to process the multimedia data. 49. The gatekeeper of claim 46, wherein the gatekeeper is When receiving the response from the application server, if the received response includes initial media related information, generate the second setup message based on the first setup message and the initial media related information, and And when the received response is a service unavailable message, providing the first setup message to the destination terminal as the second setup message. 48. The system of claim 47, wherein the initial media related information includes media type and media location information. 49. The method of claim 48, wherein the media request message is generated from the called terminal based on the initial media related information. 45. The system of claim 44, wherein the multimedia outgoing information is generated according to a media provision condition stored in a profile of the calling terminal. 51. The method of claim 50, wherein the media provision condition includes at least one of basic media information, called party information, called party group information, and time zone information. Information service system. 51. The method of claim 50, wherein the multimedia outgoing information is provided according to an RTP / RTCP protocol. 46. The method of claim 44 or 45, wherein the multimedia outgoing information comprises at least one of text, voice, sound, image, avatar, emoticon, video, and flash animation. Multimedia outgoing information service system. 45. The method of claim 44, wherein the multimedia outgoing information includes a repeat play request command, and wherein the called terminal repeatedly plays the multimedia outgoing information from the beginning to the end according to the repeat play request command. H. 323 based packet communication network multimedia outgoing information service system. 45. The method of claim 44 wherein the media server is When the multimedia call information provision stop request message from the called terminal is received, the multimedia call information service system in the H. 323-based packet communication network, characterized in that to stop providing the multimedia call information to the called terminal. 58. The system of claim 55, wherein the multimedia outgoing information provision stop request message is provided according to an RTP / RTCP protocol.

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