KR100729927B1 - Method, apparatus and system for providing supplementary service during call waiting - Google Patents

Abstract

A method for supplying supplementary services during call waiting time, and a system therefor are provided to supply an RBT(Ring Back Tone) alternative image to a receiving terminal at call connection waiting time when a video call is connected with a 3G subscriber terminal, as supplying an RBT alternative sound at call connection waiting time even when a call is connected between a 2G terminal and the 3G terminal, thereby flexibly interworking 2G and 3G mobile communication systems. A supplementary service supply device(300) individually stores sound source files and multimedia files to be delivered as RBT alternative data, and demands codes of the RBT alternative data in accordance with a call type so as to search a sound source file or a multimedia file to be delivered to a sending terminal. A supplementary service control server(400) individually stores the codes of sound sources and the multimedia files set to the RBT alternative data by a subscriber, and searches the corresponding codes according to the demand for the RBT alternative data in accordance with the call type to send the searched codes to the device(300).

Description

Method, Apparatus and System For Providing Supplementary Service During Call Waiting}

1 is a diagram illustrating an exemplary network environment between a second generation communication system and a third generation communication system according to the present invention;

2 is a configuration diagram of an embodiment of a 3G additional service providing apparatus and an additional service control server according to the present invention;

3 is a flowchart illustrating a method of providing a ringback tone replacement additional service when a call is connected between a second generation terminal and a third generation terminal according to the present invention;

4 is a flowchart illustrating another embodiment of a method for providing a ringback tone replacement supplementary service when a call is connected between a second generation terminal and a third generation terminal according to the present invention.

* Explanation of symbols for the main parts of the drawings

301, 401: transceiver unit, 402, 302: controller

303: sound source file storage unit 304: image data storage unit

403: sound source code storage unit 404: video data code storage unit

The present invention relates to a technology for providing an additional service in a call waiting state, and more particularly, a call waiting state between terminals of different standards in a mobile communication network in which a second generation mobile communication technology and a third generation mobile communication technology coexist. Relates to a technology for providing additional services.

The development of mobile communication technology is progressing from the second generation mobile communication technology of the CDMA method and the GSM method to the third generation mobile communication technology such as the WCDMA method and the CDMA2000 method.

In general, when a caller makes a call in a wired / wireless communication network, a ring back tone, that is, a ringback tone, is provided to the calling terminal before the call is connected with the called party.

Recently, various ring back tone services have been developed and provided in place of the ringback tone of a simple ring tone. Furthermore, in the 3rd generation mobile communication network, multimedia data such as a video or a still image is provided in the call waiting time in place of the ring back tone. Call connection services are being developed.

However, commercialization of 3G communication services is not actively progressed at present, and even if 3G communication services are commercially available, existing 2G communication services should be provided together.

By the way, as described above, in the second generation communication service, a ringback tone replacement sound service has been developed in the second generation communication service and a multimedia call connection additional service has been developed in the third generation communication service. There is no development on the interworking method for call connection between 3G communication service subscriber terminals.

Therefore, there is an urgent need for the development of a method of providing an additional service for call connection waiting time when a call is connected between a 2nd generation communication service subscriber station and a 3rd generation communication service subscriber station in a mobile communication network in which a second generation communication system and a third generation communication system are mixed. do.

The present invention has been proposed in order to solve the above problems, and provides additional services (ringback tone replacement sound service or not) when waiting for a call connection during a call between a second generation subscriber station and a third generation subscriber station as well as during a call between a third generation subscriber station. It is an object of the present invention to provide a system and method for providing a ringback tone alternative video service) and an apparatus therefor.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The present invention for achieving the above object is a system for providing a ringback tone replacement service between the terminal that supports only a voice call and a video call support terminal and a ringback tone replacement service between the terminal that supports a video call, A switch for receiving a voice or video call connection request from the device and transmitting a ringback tone replacement service request signal including an identifier according to the call type to provide a ringback tone replacement service during a call waiting time; And an additional service providing system for receiving a ringback tone replacement service request signal including the call type identifier, retrieving ringback tone replacement data according to the call type, and transmitting the ringback tone replacement data to the calling terminal through the switch. do.

The present invention also provides a ringback tone replacement service between a terminal supporting only a voice call and a terminal supporting a video call and a ringback tone replacement service between a terminal supporting a video call. Receiving a voice or video call connection request from a terminal, and correspondingly transmitting a ringback tone replacement service request signal including a called number and a call type identifier; And (b) retrieving ringback tone replacement data according to the called number and the call type identifier in the additional service providing system and transmitting the ringback tone replacement data to the calling terminal.

The present invention also provides a ringback tone replacement service between a terminal supporting only a voice call and a terminal supporting a video call and a ringback tone replacement service between a terminal supporting a video call. File storage means; Multimedia file storage means for storing a multimedia file; Receiving means for receiving a ringback tone replacement service request signal including a called number and a call type identifier from an exchange receiving a voice or video call connection request; Search means for selecting one of the sound source file storage means and the multimedia file storage means according to the call type, and searching for the corresponding file based on the called number; And transmitting means for transmitting the retrieved corresponding file to the calling terminal through the exchange.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a network environment for explaining a call waiting service interworking between a second generation communication system and a third generation communication system according to the present invention.

Referring to FIG. 1, a second generation communication system 100 includes a base station (BTS) that wirelessly communicates with a second generation terminal 101 and a base station controller (BSC) that controls the base station. 103), mobile exchange 104, home location register (HLR) 105 and network common system 110.

The base station 102 transmits the voice call call connection request received from the mobile terminal 101 to the mobile switch 104 under the control of the base station controller 103, and the ringback tone replacement sound received from the mobile switch 104 is received. Send to mobile terminal 101.

The base station controller 103 controls the base station 102, assigns and releases radio channels to the mobile terminal 101, controls transmission output of the mobile terminal 101 and the base station 102, soft handoff and hard-cell intercell. Handoff determination, transcoding and vocoding, operation and maintenance functions for the base station 102, etc. are performed.

The mobile switch 104 connects with the base station 102 to perform call processing and relay functions for the mobile terminal 101, and also performs additional service processing, location registration procedure and handoff procedure processing, and interworking with other networks. And so on.

The home location register 105 stores and manages subscriber information (eg, second generation service or third generation service), location information of the mobile terminal 101, and information for routing to the network common system 110. In particular, the home location register 105 stores profile information of the calling and called terminals. This profile information includes the subscriber station's MDN (subscriber telephone number), subscribed additional service information, and the like.

The network common system 110 may include an additional service providing device (CNSR-IP: CNSR-Intelligent Peripheral, 111), an additional service control server (CNSR-SCP: CNSR-Service Control Point, 112), and the like. In conjunction with a system (not shown), a customer management system (not shown), and a content providing device (not shown), it supports sound management for ringback tone replacement sound service, and subscriber management and billing management.

The supplementary service providing apparatus 111 performs a function of receiving a ringback tone replacement sound source code from the supplementary service control server 112 in connection with the mobile switch 104 and transmitting the corresponding sound source data to the user terminal, and supplementary service control. The server 112 performs a function of extracting a sound source code of a ringback tone substitute sound to be transmitted to a user terminal after performing classification for additional services and logic for each service, and transmitting the extracted sound source code to the additional service providing apparatus 111.

Meanwhile, referring to FIG. 1, the third generation communication system 200 includes a radio transceiver subsystem (RTS) 202, which wirelessly communicates with a third generation terminal 201, and a radio control station (RNC) that controls the base station 202. Radio network controller (203), circuit switch (204), home location register (HLR), and network common system (210).

The base station 202 transmits a voice call or video call call connection request received from the mobile terminal 201 to the circuit switch 204 under the control of the base station controller 203, and a ringback tone received from the circuit switch 204. The substitute sound or ringback tone substitute image is transmitted to the mobile terminal 201.

The base station controller 203 controls the base station 202, and assigns and releases radio channels for the mobile terminal 201, transmit power control of the mobile terminal 201 and the base station 202, soft handoff and hard inter-cell. It performs handoff determination, transcoding and vocoding, operation and maintenance functions for the base station 202, and the like.

The third generation circuit switch 204 has a soft switching structure for speeding up call processing in addition to the basic functions for voice call in the existing IS-95B network. Here, soft switching is a technology capable of processing voice, data, and video signals with a high speed packet switch by upgrading a circuit switch of a conventional exchange to a software switch.

The home location register (HLR) 205 stores and manages subscriber information, additional service information for each subscriber, and location information of a mobile terminal. In particular, the home location register 205 stores profile information of the calling and called terminals. This profile information includes the subscriber terminal's MSISDN (subscriber telephone number), IMSI (terminal number), subscribed additional service information, and the like.

The third generation network common system 210 includes a third generation additional service providing apparatus (CNSR-IP: CNSR-Intelligent Peripheral 211), a third generation additional service control server (CNSR-SCP: CNSR-Service Control Point, 212), and the like. Sound management for ringback tone replacement sound service in conjunction with billing processing system (not shown), customer management system (not shown), content providing device (not shown), and image data management for ringback tone alternative video service It also supports subscriber management and billing management.

The supplementary service providing apparatus 211 receives a ringback tone substitute sound source code or a ringback tone substitute image data code from the supplementary service control server 212 in association with the circuit switch 204 and transmits the corresponding sound source or image data to the user terminal. The additional service control server 212 extracts a sound source code or a ringback tone substitute image data code of a ringback tone substitute sound to be transmitted to a user terminal after performing classification for each additional service and logic for each service. A function of transmitting to the additional service providing apparatus 211 is performed.

The mobile terminals 101 and 201 of FIG. 1 are terminals capable of receiving additional services from a network common system, and include cellular phones, personal communication service (PCS) phones, PDA phones, GSM phones, WCDMA phones, CDMA-2000 phones, DMB phones and the like.

First, a brief description will be given of a method for providing a ringback tone alternative video service when a call is connected between user terminals in a 3G communication system.

First, when the 3G user terminal 201 (hereinafter, referred to as 3G terminal) attempts to make a video call to another 3G terminal, it requests a video call call connection to the 3G exchanger 204 through the base station 202. The 3G switch 204 requests call location information by indicating to the 3G home location register (HLR) 205 that it is a video call call connection request, and the 3G home location register 205 receives a call from the originating 3G switch 204. The routing information is requested to the called party's 3G switchboard (not shown) for the location information request.

The destination 3G switch (not shown) transmits routing information to the 3G home location register 205 in response to the routing information request received from the 3G home location register 205, and the 3G home location register 205. Transmits the called location information according to the received routing information to the calling 3G switch 204.

When the calling 3G exchanger 204 sets up a video call call to the called party 3G exchanger (not shown) based on the routing information, the called party 3G exchanger (not shown) recognizes that the call is a video call call. Check whether the called terminal (not shown) subscribes to the ringback tone alternative video service.

When the 3G terminating terminal subscribes to the ringback tone replacement video service, the terminating 3G exchanger transmits a call connection request signal to the additional service providing apparatus 211. In this case, the call connection request signal transmitted to the additional service providing apparatus 211 includes a 3G originating terminal and a 3G terminating terminal identifier and a ringback tone replacement video service request identifier.

The additional service providing apparatus 211 requests an image data code from the additional service control server 212 based on the received called terminal and originating terminal identifiers and the ringback tone replacement video service request identifier. The additional service control server 212 searches for an image data storage unit, extracts an image data code set in the destination terminal, and transmits the image data code to the additional service providing apparatus 211.

Thereafter, the supplementary service providing apparatus 211 transmits the ringback tone substitute image data corresponding to the image data code received from the supplementary service control server 212 via the called party 3G switch and the calling party 3G switch 204 (the calling terminal). 201). The called party 3G exchange requests the additional service providing apparatus 211 to release the call when it recognizes that the 3G called terminal responds while ringback tone replacement image data is transmitted to the 3G originating terminal 201.

Meanwhile, a method for providing a ringback tone replacement additional service during a call from the 2G terminal 101 to the 3G terminal 201 or from the 3G terminal 201 to the 2G terminal 101 will be briefly described with reference to FIG. 1.

The call from the 2G terminal 101 to the 3G terminal 201 or the call from the 3G terminal 201 to the 2G terminal 101 can only be a voice call. Accordingly, when the 2G terminal 101 calls the 3G terminal 201, the 3G terminating exchange 204 receives the voice call call connection request signal from the 2G originating exchange 104 and then rings back to the 3G supplementary service providing apparatus 211. After requesting a substitute sound service, and the 3G terminal 201 to the 2G terminal 101, the 2G terminating exchange 104 receives a voice call call connection request signal from the 3G originating exchange 204, and then provides 2G additional service Request a ringback tone replacement service at 111.

At this time, the 3G terminating exchange 204 requests the ringback tone replacement sound service to the 3G supplementary service providing device 211 or the 2G terminating exchange 104 requests the ringback tone substitute sound service to the 2G supplementary service providing device 111. By including the ringback tone replacement tone service request identifier to the additional service providing apparatus (111, 211), respectively, can be achieved by transmitting a call connection request signal.

Thereafter, the 3G supplementary service providing apparatus 211 and the 2G supplementary service providing apparatus 111 request a ringback tone replacement sound source code to the 3G supplementary service control server 212 and the 2G supplementary service control server 112, respectively, The supplementary service control server 212 and the 2G supplementary service control server 112 retrieve the sound source code set by the called terminal from the sound source code storage unit, and then forward them to the 3G supplementary service providing apparatus 211 and the 2G supplementary service providing apparatus 111. send.

2 is a diagram illustrating an embodiment of a 3G additional service providing apparatus and an additional service control server according to the present invention.

As illustrated in FIG. 2, the 3G supplementary service providing apparatus 300 includes a transceiver 301, a sound source file storage 303, an image data storage 304, and a controller 302. The function and operation will be described as follows.

The transceiver 301 of the 3G supplementary service providing apparatus 300 requests a call connection including an originating and destination terminal identifier and a ringback tone substitute supplementary service identifier (ringback tone substitute tone service identifier or ringback tone substitute video service identifier) from the exchange. Receive

That is, the transceiver 301 of the 3G supplementary service providing apparatus 300 receives a call connection request including a 3G originating and receiving terminal identifier and a ringback tone replacement video service request identifier from a switch during a video call between 3G terminals, and 2G. When the terminal makes a voice call to the 3G terminal, the terminal receives a call connection request including a 3G terminating terminal and a 2G originating terminal identifier and a ringback tone replacement tone service request identifier from the exchange.

In addition, the transceiver 301 of the 3G supplementary service providing apparatus 300 controls a 3G supplementary service control server to transmit a sound source code request signal or an image data code request signal including the received called terminal ID under the control of the controller 302. 400, and receives a corresponding response.

In addition, the controller 302 of the 3G supplementary service providing apparatus 300 may perform the sound source file storing unit 303 or the image data storing unit 304 according to the sound source code or the image data code received from the 3G supplementary service control server 400. Retrieves the file and transmits the file to the calling terminal through the transceiver unit 301.

Meanwhile, as shown in FIG. 2, the 3G supplementary service control server 400 includes a transceiver 401, a sound source code storage 403, an image data code storage 404, and a controller 402. do. The function and operation will be described as follows.

The transceiver 401 of the 3G enhanced service control server 400 receives a sound source code or a video data code request signal including a called terminal identifier from the 3G enhanced service providing apparatus 300.

That is, when a video call between 3G terminals receives a ringback tone replacement video data code request signal including a 3G called terminal identifier, and the 2G terminal calls a ringback tone alternate sound source code including a 3G called terminal identifier when making a voice call to the 3G terminal. Receive the signal.

In addition, the transceiver 401 of the 3G enhanced service control server 400 controls the sound source code storage unit 403 or the image data code storage unit 404 based on the received destination terminal identifier under the control of the control unit 402. The searcher transmits the sound source code or the image data code set in the called terminal to the 3G supplementary service providing apparatus 300.

That is, when the ringback tone replacement image data code request signal is received, the control unit 402 retrieves the image data code set in the called terminal from the image data code storage unit 404, and receives the ringback tone replacement sound source code request signal. In operation 402, the sound source code storage 403 retrieves the sound source code set in the called terminal and transmits the sound source code to the 3G supplementary service providing apparatus 300 through the transceiver 401.

Functions and operations of the additional service providing apparatus and the additional service control server as described above may be formed as a single system without necessarily being built as an independent system, and the 2G additional service providing apparatus and additional in 2G communication network as well as 3G communication network. The above functions can be implemented in the service control server in the same manner.

3 is a flowchart illustrating a method for providing a ringback tone replacement additional service when a call is connected between a second generation terminal and a third generation terminal according to the present invention, and the second generation terminal attempts to connect to the third generation terminal. When the second generation terminal to provide a ringback tone replacement supplementary service.

As shown in FIG. 3, when a 2G calling terminal first requests a voice call call connection to a 2G exchanger through a base station / base international controller (S301), the 2G exchanger requests incoming location information to a 3G home location register (S302). . At this time, the 2G exchange requests the called location information to the 2G home location register, but since the 2G home location register has no information about the 3G subscriber, the 2G exchange requests the destination location information of the 3G called terminal back to the 3G home location register. do.

The 3G home location register requests routing information from the 2G exchange to the destination 3G exchange for the request of the destination location information from the 2G exchange (S303), and the destination 3G exchange receives the routing information in response to the routing information request received from the 3G home location register. Send to the 3G home location register (S304).

Subsequently, the 3G home location register transmits the called location information according to the received routing information to the calling 2G switch (S305), and the calling 2G switch requests a voice call call connection to the called 3G switch based on the routing information. (S306).

The called party's 3G exchanger recognizes that the call is a voice call and checks whether the 3G called party has subscribed to the ringback tone replacement supplementary services (that is, ringback tone replacement sound and ringback tone replacement video service) in the database (S307).

When the 3G terminating terminal subscribes to the ringback tone replacement supplementary service, the called party 3G exchanger transmits a call connection request signal including the ringback tone replacement tone service request identifier to the supplementary service providing apparatus (S308). At this time, the call connection request signal transmitted to the additional service providing apparatus includes a 2G calling terminal and a 3G called terminal identifier.

The additional service providing apparatus requests a sound source code of a ringback tone replacement sound from the additional service control server based on the received 3G called terminal and the 2G originating terminal identifier and the ringback tone replacement sound service request identifier (S309).

The additional service control server searches for the sound source code storage unit based on the 3G called terminal identifier, extracts the sound source code set by the 3G called terminal user (S310), and transmits it to the additional service providing apparatus (S311).

Thereafter, the supplementary service providing apparatus searches for a ringback tone substitute sound corresponding to the sound source code received from the supplementary service control server in the sound source file storage unit (S312), and provides the 2G originating terminal through the 3G exchanger and the 2G exchanger (S313). ). The called 3G exchanger requests the call release to the additional service providing apparatus when it recognizes that the 3G called terminal responds while the ringback tone replacement tone is transmitted to the 2G calling terminal.

4 is a flowchart illustrating another method for providing a ringback tone replacement supplementary service when a call is connected between a second generation terminal and a third generation terminal in accordance with the present invention, wherein the third generation terminal attempts to connect to the second generation terminal; A method of providing ring back tone replacement supplementary service to a third generation terminal is described.

As shown in FIG. 4, when the 3G calling terminal first requests a voice call call connection to the 3G exchanger through the base station / base international controller (S401), the 3G exchanger requests the incoming location information to the 2G home location register (S402). . At this time, the 3G exchange requests the incoming location information to the 3G home location register, but since the 3G home location register does not have information about the 2G subscriber, the 3G exchange requests the destination location information of the 3G destination terminal back to the 3G home location register. do.

The 2G home location register requests routing information from the 3G exchange to the destination 2G exchange for the request of the destination location information from the 3G exchange (S403), and the destination 2G exchange receives the routing information in response to the routing information request received from the 2G home location register. Transmit to the 2G home location register (S404).

Subsequently, the 2G home location register transmits the called location information according to the received routing information to the calling 3G switch (S405), and the calling 3G switch requests a voice call call connection to the called 2G switch based on the routing information. (S406).

The called party's 2G switch recognizes that the call is a voice call (S407) and checks whether the 2G recipient's terminal has subscribed to the ringback tone replacement tone service in the database.

When the 2G terminating terminal subscribes to the ringback tone substitute tone service, the called party 2G exchanger transmits a call connection request signal including the ringback tone substitute tone service request identifier to the additional service providing apparatus (S408). At this time, the call connection request signal transmitted to the additional service providing apparatus includes a 3G calling terminal and a 2G called terminal identifier.

The additional service providing apparatus requests a sound source code of a ringback tone replacement tone from the additional service control server based on the received 2G called terminal and 3G originating terminal identifier and the ringback tone replacement tone service request identifier (S409).

The additional service control server searches for the sound source code storage unit based on the 2G called terminal identifier (S410), extracts the sound source code set by the user of the 2G called terminal, and transmits it to the additional service providing apparatus (S411).

Thereafter, the supplementary service providing apparatus searches for a ringback tone substitute sound corresponding to the sound source code received from the supplementary service control server in the sound source file storage unit (S412) and provides the 3G originating terminal through the 2G exchanger and the 3G exchanger (S413). ). The called party 2G switch requests the call release to the supplementary service providing apparatus when it recognizes that the 2G called terminal responds while the ringback tone replacement tone is transmitted to the 3G calling terminal.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in detail any more.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention provides not only the ringback tone replacement image to the called terminal during the call connection waiting time when the video call is connected between the third generation subscriber terminals, but also during the call connection between the second generation subscriber terminals and the third generation subscriber terminals. By providing the ringback tone replacement sound in the call waiting time, the second generation mobile communication system and the third generation mobile communication system can be flexibly interlocked.

In addition, the present invention can provide an additional service to the call waiting time to the subscribers as well as the existing second generation communication service subscribers as well as a new third generation communication service subscribers to increase the satisfaction of the subscribers, as well as increase sales through the service to the service provider. Provide effect.

Claims (11)

A system for providing a ringback tone replacement service between a terminal supporting only a voice call and a terminal supporting a video call and a ringback tone replacement service between a terminal supporting a video call, An originating exchange that receives an originating location information response by querying the home location register for incoming location information when receiving an outgoing call (voice or video call) from the originating terminal; Upon receiving the incoming processing request of the outgoing call (voice or video call) from the originating exchange based on the called location information response, identify the call type of the outgoing call and request a ringback tone replacement service according to the identified call type A destination side exchange transmitting a signal; And An additional service providing system for receiving a ringback tone replacement service request signal according to the call type, retrieving ringback tone replacement data (sound or multimedia) according to the call type, and transmitting the ringback tone replacement data (sound or multimedia) to the calling terminal through the incoming / outgoing exchange; System comprising. The method of claim 1, The additional service providing system, Sound source file storage means for storing a sound source file to be provided when the call type is a voice call; And Multimedia file storage means for storing a multimedia file to be provided when the call type is an image call System comprising a. The method of claim 1, The additional service providing system, An additional service providing apparatus for storing a sound source file and a multimedia file to be transmitted as ringback tone replacement data, respectively, and requesting a code of ringback tone replacement data according to a call type to search for a sound source file or multimedia file to be transmitted to the calling terminal; And An additional service control device for storing codes of a sound source and a multimedia file set by the subscriber as ringback tone replacement data, respectively, and searching for a corresponding code according to a ringback tone replacement data code request according to the call type and transmitting the code to the supplementary service providing device System comprising a. The method of claim 3, wherein If the call type is a video call call, The additional service providing apparatus transmits a multimedia file code request signal including a called number; And the additional service control device searches for the code of the multimedia file set by the called subscriber based on the called number and transmits the code to the additional service providing device. The method of claim 3, wherein If the call type is a voice call call, The additional service providing apparatus transmits a sound source file code request signal including a called number; And the additional service control device searches for a code of a sound source file set by the called subscriber based on the called number and transmits the code to the additional service providing device. A method for providing a ringback tone replacement service between a terminal supporting only a voice call and a terminal supporting a video call and a ringback tone replacement service between a terminal supporting a video call, (a) receiving an outgoing call (voice or video call) from an originating terminal at an originating exchange and querying the called location information with a home location register to receive an incoming location information response; (b) receiving an incoming processing request of the outgoing call (voice or video call) based on the called location information response from the originating exchange at the called exchange; (c) identifying a call type of the outgoing call and transmitting a ringback tone replacement service request signal according to the identified call type in the called exchange receiving the incoming call processing request of the outgoing call; And (d) Receiving a ringback tone replacement service request signal according to the call type in an additional service providing system, searching for ringback tone replacement data (sound or multimedia) according to the corresponding call type, and transmitting the call to the originating terminal through the incoming / outgoing exchange. Transmitting to the method. The method of claim 6, In step (d), And searching for a sound source file based on a called number when the call type is a voice call, and searching for a multimedia file and transmitting it to the calling terminal when the call type is a video call. The method of claim 6, In step (d), (d1) the additional service providing device receiving a ringback tone replacement service request signal including a called number and a call type identifier; (d2) transmitting a ringback tone replacement data code request signal including a called number and a call type identifier to an additional service control apparatus; (d3) When the call type is a voice call, the supplementary service control apparatus searches for a sound source code based on the called number, and when the call type is an image call, searches for a code of a multimedia file and transmits it to the supplementary service providing apparatus. Doing; And (d4) receiving, by the additional service providing apparatus, the code, searching for a corresponding file, and transmitting the received file to a calling terminal; An apparatus for providing a ringback tone replacement service between a terminal supporting only a voice call and a terminal supporting a video call and a ringback tone replacement service between a terminal supporting a video call, Sound source file storage means for storing a sound source file; Multimedia file storage means for storing a multimedia file; Receiving means for receiving, from an exchange receiving an outgoing call (voice or video call) from an originating terminal, a ringback tone replacement service request signal including a called number according to the received outgoing call type (voice or video call); Search means for selecting one of the sound source file storage means and the multimedia file storage means according to the call type, and searching for the corresponding file based on the called number; And And transmitting means for transmitting the retrieved corresponding file to the calling terminal through the exchange. The method of claim 9, The search means, And when the call type is a voice call, selecting the sound source file storing means and searching for the corresponding file based on the called number. The method of claim 9, The search means, And when the call type is an image call, selecting the multimedia file storing means and searching for a corresponding file based on the called number.

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