KR100754581B1 - Method of providing a multimedia video service on call waiting - Google Patents

Abstract

The present invention implements a function of providing a multimedia image when a call is waiting while a call channel for a voice call is connected. To this end, an embodiment of the present invention uses a voice / video multicall function so that a video call channel is opened to provide a multimedia video specified by the called party even when the calling terminal attempts to make a voice call. By communicating with a server that provides a call-waiting video service through the video call channel, it is possible to receive a multimedia video when a call is waiting at the calling terminal. In another embodiment of the present invention, the multimedia image designated by the calling terminal may be displayed on the called terminal until immediately before the voice call connection.

Multimedia video, multi call function, call waiting

Description

METHOD OF PROVIDING A MULTIMEDIA VIDEO SERVICE ON CALL WAITING}

1 is a view for explaining a call connection process between conventional terminals;

2 is a block diagram of a mobile communication system for providing a call waiting video service according to an embodiment of the present invention;

3 is an internal configuration diagram of a mobile terminal implementing a call waiting video service function according to an embodiment of the present invention;

4 is a diagram illustrating a message flow for performing a call waiting video service in a mobile communication system according to an embodiment of the present invention;

5 is a diagram illustrating a message flow for performing a call waiting video service in a mobile communication system according to another exemplary embodiment of the present invention.

The present invention relates to a method and a system for providing a call waiting service, and more particularly, to a method of providing a multimedia image during call waiting for displaying a multimedia image on a calling terminal or a called terminal until immediately before a voice call is connected.

Recently, as the spread of terminals has been expanded, various additional functions have been added to terminals as the user's desire to express his or her personality increases. According to this trend, users' demands for exposing their own personalities by differentiating a ringing sound or a screen output when there is an incoming call, an image of a screen displayed during a call waiting, etc. are increasing.

Among them, the ring back tone (RBT) service is a call-centered service. When a caller makes a call, the ring back tone designated by the called party is output through the speaker of the calling terminal until the called party answers the call. . The call waiting service is a so-called coloring service provided by most wired and wireless communication providers, and in particular, various call waiting sounds are automatically expressed so that their personality can be expressed immediately before a call. Accordingly, the coloring ring back tone (CRBT) service is a service that replaces the ring back tone with music or sound effects rather than the existing simple mechanical tones.

As the various additional functions gradually expand, the number of colors continues to increase as the screen becomes larger. Therefore, there is a need to use the screen space of the mobile communication terminal more efficiently and in various ways. In addition, in order to increase the utility value of the screen in the mobile communication terminal and satisfy various needs of users, it is necessary to utilize the screen and the various additional functions of the mobile communication terminal.

As an example of such utilization, the mobile communication terminal screen can be provided with a moving image display to increase its utility value. However, the conventional call waiting service is satisfied only by designating a call connection sound related to audio such as music, melody, voice, song, and effect sound, so that the caller can use his / her various multimedia videos such as music video, video, picture, and avatar. There is no way to express the personality of. That is, when the call was connected, the call waiting sound was simply output from the calling terminal or the call waiting screen indicating the call connection status was displayed.

Meanwhile, in order to exchange video and audio between the calling terminal and the called terminal, an information exchange process required for a video call is required. Specifically, in the case of a terminal capable of making a video call based on Wideband Code Division Multiple Access (WCDMA), an H.324m negotiation procedure is essential for transmitting video and audio.

As described above, a call connection process between the calling terminal and the called terminal is described with reference to FIG. 1. 1 is a diagram illustrating a call connection process between conventional terminals.

Referring to FIG. 1, when a call connection is attempted by a caller, the calling terminal 10 transmits a call set up message to the core network 20 in step 100. The core network 20 transmits the message to the called terminal 30 in step 105 in response to a request from the calling terminal 10. In operation 110, the core network 20 transmits a Call Proceeding message indicating the procedure status to the calling terminal 10. Then, the core network 20 receives the call confirmation message from the called terminal 30 in step 115, and then receives the notification message in step 120, and proceeds to step 125 to receive the notification message. Transfer to the calling terminal 10.

In operation 130, the called terminal 30 transmits a call connect message in response to a call transmitted through the message transmitted from the core network 20, to the core network 20. In response, the core network 20 transmits a call connection message to the calling terminal 10 in step 135, thereby making a call connection according to the H.324m protocol between the calling terminal 10 and the called terminal 20 as in step 140. The process begins. At this time, as the call connection process is performed, as in step 145, the calling terminal 10 makes a video call with the called terminal 30 through the core network 20.

As described above, the video call is made while the call channel for the video call is opened between the calling terminal 10 and the called terminal 30. However, when a call channel for a general voice call is set up instead of a video call, a call channel for transmitting video calls cannot be reconnected, so there is no way to provide a multimedia video.

On the other hand, mobile terminal users have a lot of interest in a service that can express their own personality, and there is a need for providing a new service for satisfying needs even in a mobile terminal for performing a general voice call. That is, users who are accustomed to various images displayed on the mobile terminal will be required to receive or provide their own unique multimedia images. According to such a necessity, there is a need to implement a function that enables users to enjoy live video until a call is connected with the other party even when a voice call is made instead of a video call. However, at present, only a call waiting sound can be provided when a call channel connection for a video call is not made. In addition, the existing server that provides the call waiting sound only implements a function of supporting a call-related sound associated with audio, and does not implement a function that can directly support multimedia video.

As described above, since the call waiting service transmitted to the calling terminal is limited to only the call connection sound associated with audio, it is difficult for a called party to satisfy a desire for a service that can express itself differently from others. In particular, when a call channel for a voice call is connected without a call channel for a video call, the user can personally inform his or her taste by using various multimedia images such as music videos, videos, photos, and avatars when the call is waiting. no method. In addition, in providing the call waiting service, only the called terminal can specify the service, and the caller cannot be involved in the service designation, thereby limiting his or her personality.

Accordingly, the present invention provides a method for providing a multimedia image during a call waiting for displaying the multimedia image on the calling terminal or the called terminal until immediately before the voice call connection.

In order to achieve the above, the present invention provides a method of providing a multimedia video service during call waiting, comprising the steps of a mobile switching station receiving a voice call setup request from an originating terminal, and the mobile switching station of the called terminal according to the voice call setup request. Checking a video service subscription status, connecting a video call channel to the calling terminal according to the check result, and receiving a preset call waiting image from an external video service server through the connected video call channel. Transmitting the video to be displayed on the calling terminal, and after the calling terminal starts displaying the call waiting image, the mobile switching center attempts to connect a voice call to the called terminal according to the voice call setup request. It is characterized by.
The present invention also provides a method for providing a multimedia video service during call waiting, wherein the calling terminal makes a request for establishing a voice call for a predetermined called terminal to a mobile switching station, and the mobile switching station receiving the voice call setting request is received. Checking whether the called terminal is a call waiting video service subscriber and connecting the video call channel to the calling terminal if the corresponding subscriber is the service subscriber; and a preset call from an external video server through the connected video call channel. Receiving and displaying a standby image; and after the calling terminal starts displaying the call waiting image, the mobile switching center attempts to connect a voice call to the called terminal according to the voice call setup request. It is characterized by.

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The present invention also provides a method for providing a multimedia video service during call waiting, wherein the mobile switching station receives a voice call setup request from a calling terminal, and the mobile switching center responds to the voice call setup request. Checking a subscription state, connecting a video call channel to a predetermined called terminal according to the voice call setup request according to the check result, and presetting an external video service server through the connected video call channel And receiving the call waiting image to transmit the call waiting image to be displayed on the called terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

The present invention implements a function of providing a multimedia image when a call is waiting while a call channel for a voice call is connected. To this end, an embodiment of the present invention uses a voice / video multicall function so that a video call channel is opened to provide a multimedia video specified by the called party even when the calling terminal attempts to make a voice call. By communicating with a server that provides a call-waiting video service through the video call channel, it is possible to receive a multimedia video when a call is waiting at the calling terminal. In another embodiment of the present invention, the multimedia image designated by the calling terminal may be displayed on the called terminal until immediately before the voice call connection.

In other words, in the present invention, a user who wants to make a voice call can also enjoy a lively video before the call with the other party is connected, and after the call is connected, the user can make a call with his ear.

Components and operations of the mobile communication system in which such a function is implemented will be described with reference to FIG. 2. 2 is a block diagram of a mobile communication system for providing a call waiting video service according to an exemplary embodiment of the present invention. In the mobile communication system shown in FIG. 2, the mobile terminal is connected to the mobile terminal by wireless communication to perform a call connection. The mobile terminal receives a call corresponding to the originating terminal 200 and a call corresponding to the originating call. Called terminal 210 is divided.

The mobile communication system includes an originating terminal 200, a terminating terminal 210, a base transceiver station / base station controller (BS) 215, a mobile switching center (MSC) 220, and a home location register (HLR). It includes a home location register (125), a mobile communication network (230), a video service server (240), and a database (DB: 235).

First, the base station 215 is wirelessly connected to each of the terminals 200 and 210, performs communication using a wireless section with each terminal 200 and 210, controls a radio link and a wired link, and the user It performs a handoff function to maintain the continuity of the call while on the move.

The mobile switching center 220 interworks with other mobile switching stations to process incoming / outgoing requests from the terminals 200 and 210, and inquires the terminal user with the home location register 225. In particular, the mobile switching center 220 according to an embodiment of the present invention requests a call waiting video service subscription inquiry for the calling terminal 200 through the home location register 225 when there is a voice call attempt at the calling terminal 200. . When it is confirmed by the home location register 225 that the terminal is subscribed to the call-waiting video service, since the connection has already been started according to the voice call attempt, the mobile switching center 220 transmits a paging message to allow another call to be connected. 200). Since the paging message is the situation that the connection for the voice call has been started, it serves to instruct the calling terminal 200 to prepare to receive the multimedia video to start the call-waiting video service. In this case, in order to allow a call for providing a multimedia video to be connected in a state where a call connection for a voice call is started, a voice / video multicall function is possible in a mobile communication system according to an embodiment of the present invention. On the premise.

Then, the mobile switching center 220 transmits a message for setting the video service to the calling terminal 200 during the call connection process for the voice call so that the calling terminal 200 itself does not ring back tone, that is, the telephone ring. Accordingly, since the calling terminal 200 supports the voice / video multi-call function, the multimedia call is started while the H.324m Negotiation with the video service server 240 is started separately from the voice call. The image is received and displayed on the screen. At the same time, the mobile switching center 2200 transmits a voice call setup message to the called terminal 210 in order to notify that there is a call incoming for a voice call, and does not transmit the ringback tone. Then, the called terminal 210 recognizes the incoming call. When the call is answered, the video call is dropped and the voice call is connected.

On the other hand, since the operation in the mobile switching center 220 for displaying the multimedia image specified by the caller to the destination terminal 210 according to another embodiment of the present invention is similarly made through the above process, a detailed description thereof will be described later. Let's do it. Here, a service that allows the called party to view the multimedia video specified by the caller is called a call waiting video push service.

The home location register 225 is a medium-class computer which mainly performs a function of managing a terminal user. The home location register 225 stores user information and location information of the terminal and can designate a route for an incoming call. In addition, the home location register 225 stores profile information of the calling and terminating terminals 200 and 210. The profile information includes information on subscribed service information, for example, whether to subscribe to a call waiting video service.

In addition, the video service server 240 is a server for providing a call-waiting video service in association with the mobile switching center 220 and the home location register 225. Shows. In this case, the video service server 240 may provide a multimedia image to the calling terminal 200 or the called terminal 210 according to the classification of the call waiting video service or the call waiting video push service.

The video service server 240 supports the H.324m protocol and stores information on the multimedia video set by the called terminal 210 in the DB 235 in order to perform the call waiting video service. In addition, in order to perform the call waiting image push service, information about the multimedia image set by the calling terminal 200 is stored in the DB 235. In this case, the DB 235 connected to the server 240 stores images of various multimedia formats provided by a wired / wireless communication company or a call waiting image producer. Examples of such multimedia images may include music videos, avatars, videos, and the like.

Hereinafter, an internal configuration of a mobile terminal implementing the call waiting video service function according to an embodiment of the present invention will be described with reference to FIG. 3. Herein, it is assumed that the internal block diagrams of the calling terminal 200 and the called terminal 210 are the same and the operation in each component is the same. Hereinafter, the call waiting video service or the call waiting video push service will be performed with reference to FIG. 3. The role of each component of the caller terminal 200 will be described with reference to the caller.

First, the control unit 300 performs the overall control operation of each terminal (200, 210), the control unit 300 of the calling terminal 200 as described below to receive the call standby image service according to an embodiment of the present invention. ) Controls the multimedia image of the called party to be executed on the calling terminal until just before the call connection.

In detail, the control unit 300 of the caller terminal 200 receives an incoming call number from the caller and performs a call. Then, the control unit 300 performs a H.324m negotiation with the video service server 240 when receiving the message to prepare to receive the call-waiting video service from the mobile switching center 220. Accordingly, the controller 300 controls the display unit 320 and the audio processor 350 to execute the multimedia image provided from the image service server 240. That is, according to the execution of the multimedia image, the display unit 320 controls to display the corresponding image, and the speaker of the audio processing unit 350 controls to output the sound of the corresponding image.

Meanwhile, in order to receive the call waiting video push service according to another exemplary embodiment of the present invention, the called terminal 210 goes through the following process. First, if there is a call attempt for a voice call by the caller, the control unit 300 of the destination terminal 210 receives a message from the mobile switching center 220 to prepare to receive a call waiting video push service, thereby providing a video service server ( In operation 240, the multimedia image specified by the caller is executed. Accordingly, the multimedia image set by the called party is displayed on the display unit 320 of the calling terminal 200, and the multimedia image set by the caller is displayed on the display unit 320 of the called terminal 210. By doing so, it becomes possible to display a unique image to which the caller or called party's special needs have been given.

The display unit 310 receives and displays display data on key input data input from the key input unit 320 under the control of the control unit 300, or displays an operation state and a plurality of information of each terminal 200, 210. And characters. In addition, the display unit 310 allows the user to visually know the state in setting or driving a required function under the control of the controller 300. In particular, according to an embodiment of the present invention, the display unit 310 displays a multimedia image specified by the caller or the called party until immediately before the call connection.

The key input unit 320 includes various keys including numeric keys to provide the control unit 300 with key input data input by the user. That is, the key input unit 320 outputs its own key input data according to the input of each key provided, and the key input data output from the key input unit 320 is applied to the control unit 300 so that such key input data is stored. Which key input data is used according to the key input is detected, and according to the result, the controller 300 performs the corresponding operation. The key input unit 320 according to an embodiment of the present invention is an interface means for selecting a multimedia image desired by the called party for the call waiting image service or selecting a multimedia image desired by the caller for the call waiting image push service.

In addition, the memory unit 330 connected to the controller 300 may include a read only memory (ROM) and a random access memory (RAM) for storing a plurality of programs and information necessary for controlling operations of the terminals 200 and 210. Access Memory), voice memory and the like. In addition, according to an embodiment of the present invention, the memory unit 330 in the calling terminal 200 or the called terminal 210 may be edited and stored in a multimedia image according to its taste, such a multimedia image is a video service server ( 240).

The radio unit 340 transmits / receives an RF signal with the mobile switching center 220 through the antenna ANT under the control of the control unit 300, and performs a procedure according to the H.324m protocol from the video service server 240. Receive multimedia video.

The voice signal processor 350 connected to the controller 300 is connected to the microphone MIC and the speaker SPK, and outputs the voice signal received from the microphone to the controller 300 to output the data to the controller 300. The voice data input from 300 is converted into an audible sound through the speaker SPK and output. Here, when a multimedia image transmitted from the video service server 240 is executed during call waiting, when audio data such as voice and music is included in the multimedia image, voice and music are output through the speaker.

In the following description, in order to explain in detail a specific example to which the present invention is applied, a message flow between components of a mobile communication system when performing a call-waiting video service will be described. To this end, referring to FIG. 4, which is a diagram illustrating a message flow for performing a call waiting video service in a mobile communication system according to an exemplary embodiment of the present invention.

First, the terminating terminal 210 accesses the video service server 240 through a predetermined path and selects a desired multimedia image from various multimedia images, and sets the call waiting image, which is set by the terminating terminal 210. The call waiting image is stored in the video service server 240 together with information about the called terminal 210. In this case, the called party may designate one multimedia video as a call waiting image for all calling terminals, or different calling images may be designated for each calling terminal.

Hereinafter, a case in which the call waiting video service is provided by the calling terminal 200 will be described in detail with reference to FIG. 4.

If there is a call connection attempt with the called number input by the caller, the calling terminal 200 transmits a voice call setup message to the mobile switching center 220 as in step 400. Accordingly, the channel formation for the voice call call connection is started between the calling terminal 200 and the mobile switching center 220. Meanwhile, in response to the message from the calling terminal 200, the mobile switching center 220 sends a video service subscriber confirmation request to the home location register 225 in step 405 to determine whether the called party is a subscriber to the call waiting video service. . In step 410, the home location register 225 checks whether the subscriber is the subscriber to the call waiting service by referring to the service information of the called terminal 210, and transmits a confirmation message to the mobile switching center 220 in step 415.

Receiving the confirmation message, the mobile switching center 220 recognizes that the called party is a call waiting video service subscriber based on the confirmation message, and transmits a paging video call message to the calling terminal 200 in step 420. Since the video call paging message is a situation of forming a channel for a voice call, the video call paging message indicates that a video call has come while forming the channel, that is, a message informing that a video call is prepared. Then, when the calling terminal 200 transmits a paging response message (Paging Response Message) in step 425, the mobile switching center 220 transmits a video call setup message to the calling terminal 200 in step 430. do. In this case, a general call setup message is transmitted from the calling caller, and the caller is charged. However, in the embodiment of the present invention, the mobile switching center 220 transmits a video call setting message to the calling terminal 200. ) Does not charge for receiving multimedia video.

Subsequently, the calling terminal 200 transmits a Call Proceeding Message to the mobile switching center 220 in step 435, and the mobile switching center 220 responds to the video service setting notification message in step 440. To transmit to the calling terminal 200. At this time, since the mobile switching center 220 transmits a video call setup message to the calling terminal 200, the mobile switching center 220 notifies the video call for the call waiting video service by using the video service setting notification message. Do not ring the phone. That is, the originating terminal 200-a terminal capable of generating a ringback tone-does not transmit a ringback tone by itself. In addition, the mobile switching center 220 may inform the call waiting video service to be started in the calling terminal 200 through the video service setting notification message. In response to this, the calling terminal 200 transmits an alert message to the mobile switching center 220 indicating that it is ready to access the video service server 240 in step 445.

In general, when a channel for a voice call is formed, video cannot be transmitted. However, the present invention assumes that the call terminal is a voice / video multi-call function. It is possible to connect different channels. This multi call function is a standard function provided by Circuit Domain of 3G WCDMA service.

As described above, since the calling terminal 200 supports the multi-call function, after transmitting the notification message, the H.324m negotiation with the video service server 240 is performed separately from the voice call in step 450. (negotiation) The process begins. Accordingly, the calling terminal 200 accesses the video service server 240 and starts a call waiting video service according to the H.324m protocol. Specifically, the calling terminal 200 receives the video data for the call-waiting video service through the mobile switching center 220 in the state connected to the video service server 240, and displays the video set by the called party on the screen, Audio data included in the image is output to the speaker. By doing so, the multimedia video is displayed on the calling terminal 200 as a call connection sound and a call connection screen.

At the same time, the mobile switching center 220 transmits a voice call setup message informing the incoming call to the called terminal 210 to form a channel for a voice call in step 455. At this time, the mobile switching center 220 does not transmit a ringback tone. In addition, the called terminal 210 transmits an alert message in step 465 following the call proceeding message in step 460 in response to the call. Then, when the call connection key is pressed by the called party who recognizes the call, the called terminal 210 transmits a call connection message (Connect Message) indicating that the call is connected in step 470 to the mobile switching center 220.

Since the video call is disconnected from the calling terminal 200 and the voice call can be connected at the moment when the incoming terminal 210 receives the call, the mobile switching center 220 receives the video data transmission end message (step 475) as soon as the call connection message is received. Video CS Data End Message) is transmitted to the calling terminal 200. That is, the video data transmission end message is transmitted to close the video call channel.

Then, the calling terminal 200 recognizes that the incoming call terminal 210 is connected to the voice call and terminates the call waiting video service according to the H.324m protocol in step 480 with the video service server 240 providing the call waiting video service. Disconnect. Then, the mobile switching center 220 transmits a voice connect message to the calling terminal 200 in step 485, and the calling terminal 200 responds to the voice connecting confirmation message in step 490. Message) to the mobile switching center (220). Accordingly, a call channel for a voice call is connected between the calling terminal 200 and the called terminal 210 to perform a voice call as in step 495.

As described above, according to an exemplary embodiment of the present invention, when an outgoing terminal attempts to make a voice call to a called party's telephone number subscribed to a call waiting video service, the caller vividly plays the multimedia video designated by the called party until the call is connected. After the call is connected, you can make a voice call in your ear.

Hereinafter, a process of providing a call waiting video push service to a called terminal according to another embodiment of the present invention will be described with reference to FIG. 5. 5 is a diagram illustrating a message flow for performing a call waiting image push service in a mobile communication system according to another exemplary embodiment of the present invention. As in the call-waiting video service described above, a caller may designate a desired multimedia video for each called terminal in advance in the video service server 240. In addition, the call-waiting video push service according to another embodiment of the present invention is based on the premise that a voice / video multiple call function is possible.

If the call connection key is pressed while the called number is input, the calling terminal 200 transmits a voice call setup message to the mobile switching center 220 in step 500. The mobile switching center 220 then determines whether the caller is a call waiting image push service subscriber to the home location register 225 in step 505. Accordingly, when the confirmation message is transmitted from the home location register 225, the mobile switching center 220 transmits a paging video call message (Paging Video Call Message) indicating that there is a video call to the called terminal 210 in step 515. In response to the transmission, in step 520, when a paging response message is received from the called terminal 210, the mobile station 220 proceeds to step 525 to send a video call setup message to the called terminal ( 210). In response, the called terminal 210 transmits a call confirmation message to the mobile switching center 220 in step 530, and the mobile switching station 220 receives a setup service notification message in step 535. Transmit to terminal 210. As such, when the called terminal 210 receives the video service setting notification message, it does not transmit its own ringback tone. In response, the mobile switching center 220 receives an alert message indicating that it is ready to access the video service server 240 from the destination terminal 210 in step 540.

As such, the destination terminal 210 according to another embodiment of the present invention supports a multi-call function, so after transmitting a notification message, the H.324m Nigoshi with the video service server 240 is separated from the voice call in step 545. Begin the negotiation process. Accordingly, the called terminal 210 accesses the video service server 240 and starts a call waiting video push service according to the H.324m protocol. Specifically, the receiving terminal 210 receives the video data for the call waiting video push service in the state connected to the video service server 240 and displays the video set by the caller on the screen and the audio data included in the video. To the speaker. By doing so, various multimedia images designated by the caller are also displayed on the called terminal.

As such, when the called terminal 210 receives the call-waiting video push service from the video service server 240, the mobile switching station 220 receives the voice call setup message at step 550. In step 555, a call message message corresponding to the call proceeding message is received, and in step 560, an alert message is received. When the call connection key is pressed by the called party who recognizes the incoming call while the multimedia video according to the call waiting image push service is displayed on the called terminal 210, the called terminal 210 calls the call connection message as in step 565. (Connect Message) is sent to the mobile switching center 220. Then, in step 570, the mobile switching center 220 transmits a video data transmission end message (Video CS Data Message) to the called terminal 210 in order to disconnect the video call and connect the audio call. At the same time, when the mobile switching center 220 transmits a voice connect message to the calling terminal 200 in step 580 and receives a voice connect confirmation message corresponding to the voice connect message in step 585, A channel for a voice call is opened between the calling terminal 200 and the called terminal 210 to enable a voice call as in step 590.

As described above, when using the call-waiting video service or call-waiting video push service according to the present invention, a user who wants to make a voice call enjoys a lively video before the call is connected to the other party. You can talk to them.

By applying the present invention as described above to extend the service that can provide video only when performing a video call only when performing a video call, not only can be provided with a consistent service from the user's point of view, There is an effect that can be developed into a representative multimedia service irrelevant to voice / video call.

Claims (18)

In the method for providing a multimedia video service when waiting for a call, The mobile switching center receives a voice call setup request from the calling terminal; Confirming, by the mobile switching center, a video service subscription state of a called terminal according to the voice call setup request; Connecting a video call channel to the calling terminal according to the checking result; Receiving a preset call waiting image from an external video service server through the connected video call channel and transmitting the preset call waiting image to be displayed on the calling terminal; And after the calling terminal starts displaying the call waiting image, the mobile switching center attempts to connect a voice call to the called terminal according to the voice call setup request. How to give it. delete The method of claim 1, And terminating the video call setup for the calling terminal according to the voice call connection between the calling terminal and the called terminal. The method of claim 1, wherein the connecting of the video call comprises: Paging, by the mobile switching center, the video call to the originating terminal; Receiving a response message for the paging from the originating terminal receiving the paged video call; Transmitting, to the calling terminal, a video call setup message for setting up the video call with respect to the paging response; Receiving a call procedure message from the calling terminal in response to the video call setup message; In response to the call procedure message, transmitting a video service setting notification message to the calling terminal and receiving a notification message in response to the call procedure message. The method of claim 1, wherein the calling terminal is a terminal that implements a voice / video multiple call function provided by a 3G wideband code division multiple access (WCDMA) service. The method of claim 1, wherein the checking of the video service subscription state of the called terminal comprises: Checking, by the mobile switching center, via a home location register whether a called terminal corresponding to the voice call setup request is the video service subscriber; And receiving, by the mobile switching center, the subscriber confirmation message based on service subscriber information from the home location register. In the method for providing a multimedia video service when waiting for a call, The originating terminal making a request for establishing a voice call for a predetermined called terminal to the mobile switching center; Receiving, by the mobile switching station, whether the called terminal is a call-waiting video service subscriber and connecting the video call channel to the calling terminal if the corresponding service subscriber is received; Displaying, by the calling terminal, a preset call waiting image received from an external video server through the connected video call channel; And after the calling terminal starts displaying the call waiting image, the mobile switching center attempts to connect a voice call to the called terminal according to the voice call setup request. How to give it. The method of claim 7, wherein The calling terminal terminates the video call connection according to the voice call connection between the calling terminal and the predetermined called terminal. The method of claim 7, wherein the connecting the video call comprises: Receiving, by the calling terminal, a paging video call for a video call from the mobile switching center; Transmitting a paging response message to the mobile switching station when the paged video call is received; Receiving a video call setup message for setting up the video call from the mobile switching station for the paging response; Receiving a video service setup notification message from the mobile switching center in response to a call procedure message transmission in response to the video call setup message; And transmitting a notification message (Alert) to the mobile switching center in response to the reception. The method of claim 7, wherein the calling terminal is a terminal in which a voice / video multiple call function provided by a 3G wideband code division multiple access (WCDMA) service is implemented. In the method for providing a multimedia video service when waiting for a call, The mobile switching center receives a voice call setup request from the calling terminal; Confirming, by the mobile switching center, a video service subscription state of the calling terminal in response to the voice call setup request; Connecting a video call channel to a predetermined called terminal according to the voice call setup request according to the verification result; And receiving a preset call waiting image from an external video service server through the connected video call channel and transmitting the preset call waiting image to be displayed on the called terminal. The method of claim 11, And after the called terminal starts to display the call waiting image, the mobile switching station attempting to connect a voice call to the called terminal according to the voice call setup request. How to Provide Services. The method of claim 12, And terminating the video call setup for the called terminal according to a voice call connection between the calling terminal and the called terminal. The method of claim 11, wherein the connecting of the video call comprises: Paging, by the mobile switching center, a video call to the called terminal; Receiving a response message for the paging from the called terminal receiving the paged video call; Transmitting, to the called terminal, a video call setup message for setting the video call with respect to the paging response; Receiving a call confirmation message in response to the video call setup message from the called terminal; And in response to the call confirmation message, transmitting a video service setting notification message to the called terminal and receiving a notification message in response thereto. 12. The method of claim 11, wherein the called terminal is a terminal that implements a voice / video multiple call function provided by a 3G wideband code division multiple access (WCDMA) service. The method of claim 11, wherein the checking of the video service subscription status of the calling terminal comprises: Checking, by the mobile switching center, via a home location register whether the calling terminal is the video service subscriber; And receiving, by the mobile switching center, the subscriber confirmation message based on service subscriber information from the home location register. The method according to any one of claims 1 to 10, And the preset call waiting image is a different image for each calling subscriber. The method according to any one of claims 11 to 16, And the preset call waiting image is a different image for each called subscriber.

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