KR20080048197A - System and method for providing ringback tone service - Google Patents

Abstract

A system and a method for providing a ring back tone service are provided to supply a receiving ring back tone of an originating party when a user subscribed in a receiving ring back tone service originates a call to the other user who does not subscribe in the receiving ring back tone service. If a receiving terminal is not subscribed in a receiving ring back tone service, a receiving MSC(Mobile Switching Center)(130) transmits an IAM(Initial Address Message) to a sound source providing server(140) by using received routing information(341). The sound source providing server analyzes a receiving number and an originating number to determine whether the receiving terminal is a normally-registered subscriber or not(342). If so, the sound source providing server transmits an ACM(Address Complete Message) to the receiving MSC(342). The sound source providing server transmits an ANS(Answer Message), for configuring a call route between the sound source providing server and the receiving MSC, to the receiving MSC(343). If the receiving terminal is not subscribed in the receiving ring back tone service, the sound source providing server transmits a preset receiving ring back tone of an originating terminal to the originating terminal(344).

Description

System and method for providing ring back tone service

1 is a diagram showing the configuration of a service system for providing a ring back tone service according to an embodiment of the present invention.

2 is a flowchart schematically illustrating a method for providing a ring back tone service by a service system according to an exemplary embodiment of the present invention.

3 is a diagram illustrating a call processing procedure for providing a ring back tone service according to an embodiment of the present invention.

4 is a diagram illustrating a subsequent processing procedure according to a connection failure of a sound source providing server according to an exemplary embodiment of the present invention.

Figure 5 is a flow chart illustrating a ring tone service subscription procedure according to an embodiment of the present invention.

6 is a flowchart illustrating a process of activating / deactivating a ring back tone service according to an exemplary embodiment of the present invention.

The present invention relates to an apparatus and method for providing a ring back tone service, and more particularly, to a system for providing a ring back tone of a caller when a subscriber subscribes to a ring back tone service subscriber. It is about a method.

In general, when a user dials a predetermined number, the telephone converts the signal into a digital signal and transmits it to the exchange. When the exchange applies the calling current to the called party, the called party responds to the exchange with a ring back tone signal, a busy tone signal or a network busy tone signal. Then, when a hook-off signal is transmitted to the exchange, a call path between the calling party and the receiving party is formed.

At this time, the exchange transmits a ringback tone signal, a busy tone signal, or a network busy signal from the optical illuminator to the calling party, and the receiving party can determine the state of the called party through the received signal.

In addition, even in the case of a conventional mobile phone, the user inputs a telephone number to call and presses a call button or a send button, and when the base station and the wireless communication path are formed through the above process, the ringback tone signal is transmitted to the calling party. If no wireless communication path is established, a busy tone signal is transmitted.

That is, the ringback tone signal is a signal indicating that a bilateral communication path is formed through an exchange between the calling party and the called party when the calling party attempts to talk to the called party. In the case of the conventional telephones and mobile phones, the ringback tone signals are uniform and very monotonous and boring, and there is also a problem in that it just wastes time for transmitting and receiving signals.

In order to overcome this point, the ring back tone signal is provided to replace the ring back tone signal, and a ring tone service provided to the caller side is activated, and the user can receive various sound sources instead of the monotonous ring back tone signal.

Current ring tone service is provided in two forms. Firstly, when a caller calls a person who subscribes to an incoming call ring tone service, there is an incoming call ring tone service in which the caller hears an incoming call ring tone set by the called party. Secondly, when a subscriber who subscribes to the outgoing call ring tone service calls the called party, there is an outgoing call ring tone service in which the caller hears the outgoing call ring tone set by the caller.

If the outgoing call ring tone service and the incoming call ring tone service are operated at the same time, the outgoing call ring tone service is operated preferentially, so the incoming call ring tone is not heard by the caller.

According to the related art, when a caller who is a ringtone ringtone service subscriber makes a call to a ringtone ringtone service subscriber, the caller cannot hear the ringback tone (sound source), and there is a problem in that a ringback tone or a busy tone is heard.

In order to solve the above-mentioned problems, the present invention is to propose a system and method for providing a ring back tone set by the caller when a caller who is a ring back tone service subscriber makes a call to a subscriber who does not have a ring back tone service. do.

Another object of the present invention is to provide a system and method for providing a ring back tone service for creating a call atmosphere during a call.

Still other objects of the present invention will be readily understood through the following description of the embodiments.

In order to achieve the above object, according to an aspect of the present invention, a method for providing a ring back tone service performed in a service system connected to a terminal through a communication network (a) from a calling terminal subscribed to a ring back tone service Receiving a call request; (b) determining an incoming call ring tone subscription state of the called terminal; And (c) if the called terminal does not subscribe to an incoming call ring tone service, transmitting the incoming call ring tone of the calling terminal to the calling terminal.

According to another aspect of the present invention, a program of instructions that can be executed by a service system is tangibly implemented to perform a method of providing a ring back tone service to a terminal connected through a communication network, and can be read by the service system. A recording medium recording a program, comprising: (a) receiving a call request from a calling terminal subscribed to an incoming call ring tone service; (b) determining an incoming call ring tone subscription state of the called terminal; And (c) if the called terminal is not subscribed to the incoming call connection tone service, a recording medium recording a program for transmitting the incoming call connection tone of the calling terminal to the calling terminal may be provided.

According to another aspect of the present invention, a service system for providing a ring back tone service to a terminal through a communication network receives a call request from a calling terminal that subscribes to a ring back tone service, and receives a call request from a home location register according to the call request. An originating exchange transmitting a location request invoke message, wherein the called location information request message includes incoming call ring tone service subscription information of the calling terminal; A home location register transmitting a routing information request message to a destination exchange in response to the called location information request, and transmitting a called location information response message to the calling exchange when a routing information response message is received from the destination exchange; And receiving a circuit connection request message from the originating exchange, requesting an incoming call connection sound to a sound source providing server connected through a communication network, and transmitting the incoming call connection sound to the calling terminal. Here, the incoming call ring tone transmitted to the calling terminal is an incoming call ring tone of the calling terminal when the called terminal is not in the called call ring tone service subscription state, and if the called terminal is in the subscribed call ring tone service subscription state, the incoming call ring tone of the called terminal Can be.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other It is to be understood that the present invention does not exclude the possibility of adding or presenting features or numbers, steps, operations, components, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

 Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the same reference numerals will be used for the same means regardless of the reference numerals in order to facilitate the overall understanding.

1 is a view showing the configuration of a service system for providing a ring back tone service according to an embodiment of the present invention.

According to an embodiment of the present invention, the service system 100 that receives a call request from the calling terminal 150 that subscribes to the incoming call connection sound (for example, melody, advertisement message, specific sound, etc.) service is called terminal ( If 160 is not the incoming call ring tone, the incoming call ring tone of the calling terminal 150 is transmitted to the calling terminal 150 until an incoming call processing event (for example, the answer of the called terminal 160) occurs. Can be. In addition, when the calling and receiving terminals 150 and 160 subscribe to all the incoming call ring tone services, the service system 100 may transmit the incoming call ring tone of the called terminal 160 to the calling terminal 150. Here, the time point for providing the ringing ring connection ring of the calling terminal 150 may be set in various ways, according to a preferred embodiment of the present invention, the destination exchange 130 transmits a paging message to the called terminal 160 It may be a time point.

Hereinafter, the state subscribed to the RBT service for the purpose of clear understanding and explanation of the present invention will assume that the subscribed RBT service is activated. In addition, when the terminal is subscribed to the RBT service, but registered to deactivate the RBT service subscribed to the terminal will be treated the same as the non-subscription state of the RBT service.

Referring to FIG. 1, the service system 100 for providing a ring back tone service includes an originating exchange 110, a home location register 120, a destination exchange 130, and a sound source providing server 140. It may include. In addition, the service system 100 is connected to the calling terminal 150 and the called terminal 160 through a communication network.

The originating exchange 110 may include an originating PSTN (Public Switched Telephone Network) and an originating mobile switching center (MSC / VLR). A landline telephone service terminal user who subscribes to an incoming call ring tone service may make a call with a landline telephone service terminal user connected to an incoming PSTN through an originating exchange 110 including an outgoing PSTN. In addition, a mobile communication terminal user who subscribes to an incoming call ring tone service can make a call with a landline telephone service terminal user connected to the incoming PSTN through a base station / base station controller (BTS / BSC) and an outgoing mobile switching center (MSC / VLR). The mobile switching center and the BTS / BSC can talk to the mobile terminal, and can be connected to other mobile communication terminals connected to the public land mobile network (Public Land Mobile Network) and other mobile switching network. For convenience of clear understanding and explanation of the invention below, matters for the originating exchange 110 will be described with reference to the originating mobile switching center.

The home location register 120 is a mobile subscriber database including terminal information, subscription information, location information, authentication function, and the like of the RBT service subscriber. In addition, the home location register 120 is connected to the source and destination mobile switching center, and controls the signaling network protocol (SS7) in addition to the Visitor Location Register (VLR). In addition, a transaction for completing an incoming call and updating subscriber information is performed.

According to the present invention, the home location register 120 receives a sound source providing server 140 capable of providing an incoming call ring tone of the calling terminal 150 when the calling and ringing terminals 150 and 160 subscribe to the incoming call ring tone service. Routing information for the exchange 130 to connect may be transmitted to the destination exchange 130.

In Fig. 1, although the calling and terminating mobile switching centers are connected to the same home location register 120, the calling and terminating mobile switching centers may be connected to different home location registries as necessary. A detailed call processing procedure performed by the home location register 120 will be described with reference to FIG. 3.

The destination exchange 130 may include a destination PSTN, a PLMN, another mobile switching network and a destination mobile switching center. For convenience of clear understanding and explanation of the invention below, matters for the destination exchange 130 will be described with reference to the destination mobile switching center. The destination exchange 130 according to the present invention has all the functions as an existing network component. In addition, the destination switching unit 130 determines whether the incoming terminal 160 is subscribed to the incoming call ring tone service, and when the called terminal 160 is not subscribed to the incoming call ring tone service, the call originating terminal 150 is interlocked with the sound source providing server 140. ) To transmit the incoming call connection sound to the calling terminal 150. In addition, when the terminating terminal 160 subscribes to the terminating call connection ring service, it performs a function of transmitting the terminating call ring tone of the terminating terminal 160 to the calling terminal 150 in association with the sound source providing server 140. Hereinafter, it should be understood that the ring back tone transmitted from the destination exchange 130 to the calling terminal 150 is transmitted to the calling terminal 150 via the calling exchange 110. Details of the call processing procedure performed by the destination exchange 130 according to the present invention will be described in detail with reference to FIG. 3.

The sound source providing server 140 transmits the call connection sound stored in the sound source providing server 140 to the calling terminal 150 according to the information received from the destination exchange 130. Sound source providing server 140 may be a plurality, if necessary, through the gateway can receive a sound source that is not embedded in the sound source providing server 140 from a web server.

The calling terminal 150 may include a wired telephone service terminal and a mobile communication terminal, and the called terminal 160 may include a wired telephone service terminal, another mobile communication terminal, and a mobile terminal. However, for the convenience of clear understanding and explanation of the present invention, the calling and terminating terminals 150 and 160 will be described on the premise that they are mobile communication terminals.

2 is a flowchart schematically illustrating a method for providing a ring back tone service by the service system 100 according to an exemplary embodiment of the present invention.

As shown in FIG. 2, in step 210, the service system 100 receives a call request message from the originating terminal 150. Here, the calling terminal 150 is a terminal subscribed to the incoming call ring tone service, it is assumed that the subscribed service is activated.

In operation 220, the service system 100 determines whether the terminating terminal 160 subscribes to an incoming call ring tone service. Of course, when the called terminal 160 subscribes to the incoming call ring tone service, step 220 may include a procedure for determining whether the incoming call ring tone service of the called terminal 160 is activated.

However, for the sake of clarity of understanding, the following description will be made in the former case, but it should be understood by those skilled in the art that the description includes the corresponding latter case.

If it is determined that the called terminal 160 is not subscribed to the incoming call ring tone service, the service system 100 proceeds to step 230 and transmits the incoming call ring tone of the calling terminal 150 to the calling terminal 150. Here, a detailed process for transmitting the incoming call connection sound of the calling terminal 150 to the calling terminal 150 will be described with reference to FIG.

In addition, if the determination is that the terminating terminal 160 is in the incoming call ring tone service subscription state, the service system 100 may proceed to step 240 may transmit the incoming call ring tone of the terminating terminal 160 to the calling terminal 150. Here, a detailed process for transmitting the incoming call connection sound of the called terminal 160 to the calling terminal 150 will be described with reference to FIG.

In operation 250, the service system 100 may receive an incoming call processing event (for example, when there is no paging response (hereinafter referred to as 'no paging'), no answer, answer, Determination of power off, shadow area presence, busy state, etc.).

If the incoming call processing event does not occur, the service system 100 may transmit the incoming call connection sound to the calling terminal 150 until the incoming call processing event occurs.

If an incoming call processing event occurs, the service system 100 proceeds to step 260 to perform a procedure for stopping a ring back tone transmission. If the incoming call processing event is an answer of the called terminal 160, the service system 100 proceeds to step 270 to connect a call between the calling terminal 150 and the called terminal 160. In addition, when the incoming call processing event is No Answer, the service system 100 may provide a voice mail service to the calling terminal 150.

3 is a diagram illustrating a call processing procedure for providing a ring back tone service according to an embodiment of the present invention.

In step 305, the originating exchange 110 receives the call request from the originating terminal 150 transmits a location request invoke message to the home location register (120). Here, the called location information request message includes service information (for example, incoming call connection tone service subscription information, etc.) subscribed to by the calling terminal 150. Of course, the service information may further include other service information (for example, outgoing call ring tone service) subscribed to by the calling terminal 150 in addition to the incoming call ring tone service.

In step 310, the home location register 120 that has received the called location information request message transmits the routing information request message to the corresponding destination exchange 130 to configure the circuit. Here, when the calling terminal 150 is the incoming call ring tone service is subscribed state and the called terminal 160 is not connected to the call ring tone service, the routing information is the sound source providing server that can provide the incoming call ring tone of the calling terminal 150 ( 140 includes routing information for the destination exchange 130 to access.

In step 315, the destination exchange 130 transmits a routing information response message corresponding to the routing information request message to the home location register 120, and in step 320, the home location register 120 corresponds to the incoming location information request. The destination location information response message is transmitted to the originating exchange 110.

In step 325, the originating exchange 110 sends a circuit connection request message (IAM) to the terminating exchange 130. The circuit connection request message may include a called number and a calling number, and may include location information of the calling terminal 150 as necessary.

In step 330, the destination exchange 130 performs an incoming call procedure (eg, paging procedure, etc.). For example, the destination exchange 130 may check the state of the destination terminal 160 by transmitting a paging request message to the destination terminal 160. That is, when the destination exchange 130 does not receive a paging response message corresponding to the paging request message within a preset time, the called terminal 160 leaves the callable area (for example, the shaded area). If it is located in, etc.) will be determined.

In addition, according to the present invention, a paging processing procedure performed by the destination exchange 130 and a ringback tone transmission procedure (step 340) including a connection procedure of the sound source providing server 140 may be separately performed. Therefore, even when the destination exchange 130 cannot access the sound source providing server 140, the incoming call procedure may be normally performed. For example, because there is no available bearer channel for accessing the sound source providing server 140, even if the destination exchange 130 fails to access the sound source providing server 140, the processing procedure and traffic according to the paging response The assignment can be made normally. In this case, the destination exchange 130 may not transmit the ring back tone to the originating exchange 110, so it may be desirable to transmit the existing ringback tone (RBT). Details of the case in which the destination exchange 130 cannot transmit the ring back tone will be described with reference to FIG. 4.

According to an embodiment of the present invention, the incoming call connection sound transmitted by the sound source providing server 140 may be transmitted to the calling terminal 150 from the time when the called exchange 130 transmits a paging request message to the called terminal 160. have. In this case, the destination exchange 130 should perform the ring back tone transmission procedure of step 340 immediately or simultaneously after transmitting the paging request message to the destination terminal 160.

According to another embodiment of the present invention, the incoming call connection tone may be transmitted to the calling terminal 150 by the called exchange 130 to determine whether a paging response message is received from the called terminal 160. If the destination exchange 130 does not receive a paging response message from the destination terminal 160 (for example, when the destination terminal 160 leaves the callable area), the destination exchange 130 performs step 340. The voicemail service may be provided to the calling terminal 150 without using the voicemail service. If the destination exchange 130 receives the paging response message from the destination terminal 160, the destination exchange 130 of the calling number and the called number and the originating terminal 150 included in the circuit connection request message (IAM) After transmitting a line complete message (ACM) using the location information to the originating exchange 110, step 340 is performed. Here, the circuit connection completion message refers to a response message for the circuit configuration of the called terminal 160 and the calling terminal 150.

Looking at the call connection sound transmission procedure of step 340 in detail as follows.

In step 341, when the terminating terminal 160 subscribes to the ringing tone connection service, the terminating exchange 130 using the routing information for accessing the sound source providing server 140 stored in the terminating terminal 160 profile (Profile) The circuit connection request message (IAM) is transmitted to the sound source providing server 140. In addition, when the called terminal 160 is not subscribed to the incoming call ring tone service, the circuit connection request message (IAM) is transmitted to the sound source providing server 140 using the routing information received in step 310. Here, the line connection request message may include the called number, the calling number, the location information of the called terminal 160 and the call ring tone information of the calling terminal 150. Here, the location information of the called terminal 160 may be cell information stored in the visitor location register (VLR).

In step 342, the sound source providing server 140 analyzes the called number and calling number and transmits a line connection completion message (ACM) to the called exchange 130 if it is a normal subscriber.

In step 343, the sound source providing server 140 transmits an incoming response message (ANM: Answer Message) for configuring a call between the sound source providing server 140 and the destination exchange 130 to the destination exchange 130.

In step 344, the sound source providing server 140 transmits a ring back tone (sound source) according to the information received in step 340 to the originating exchange 110. That is, when the called terminal 160 subscribes to the incoming call ring tone service, the sound source providing server 140 transmits the preset call ring tone of the called terminal 160 to the calling terminal 150. In addition, when the called terminal 160 is not subscribed to the incoming call ring tone, the sound source providing server 140 transmits the incoming call ring tone of the preset calling terminal 150 to the calling terminal 150.

In step 350, when the incoming call processing termination event occurs, the destination exchange 130 proceeds to stop the ring-tone transmission of step 360.

According to an embodiment of the present invention, the incoming call processing end event is when the called terminal 160 does not have a paging response with respect to a paging request of the called exchange 130 (for example, an incoming call). Terminal 160 may be present in the transliteration region (eg, out of call).

In addition, according to another embodiment of the present invention, the incoming call processing termination event may be a case in which the called terminal 160 responds to the paging, but the called terminal 160 does not respond for a preset time. In this case, the destination exchange 130 may provide a voicemail service to the calling terminal 150 after the call connection sound transmission stop procedure of step 360. Here, the voicemail service may be provided by the destination exchange 130 to obtain the routing information of the voicemail providing server from the home location register (120). In addition, the destination exchange 130 after the non-response (Time-out) processing, the home location register 120 to the relay (Route Request) to the home location register 120 to route information to the originating exchange (110) Can be sent.

The incoming call processing termination event may be a case where the called terminal 160 responds within a preset time. In this case, the destination exchange 130 transmits an incoming response message (ANM: Answer Message) for configuring the call to the originating exchange 110 to the originating exchange 110, and then performs step 360 to stop transmission of the RBT. . The procedure of step 360 is as follows.

In step 361, the destination exchange 130 transmits a release message (REL: Release Message) to the sound source providing server 140.

In step 362, the sound source providing server 140 receiving the release message stops the transmission of the incoming call link connection sound, and transmits a release complete message (RLC) to the destination exchange 130.

In step 365, a call connection is made between the calling terminal 150 and the called terminal 160 through a call path between the calling exchange 110 and the called exchange 130.

4 is a diagram illustrating a subsequent processing procedure according to the inability to provide a ring back tone according to an exemplary embodiment of the present invention.

In step 410, the destination exchange 130 receives a circuit connection request message from the source exchange 110.

In step 420, the destination exchange 130 determines whether or not a ring tone transmission impossible event has occurred. If a call connection sound transmission impossible event does not occur, the process proceeds to step 430, and the incoming call connection sound of the calling or called terminal 150, 160 according to the present invention will be transmitted to the calling terminal 150. When the call connection sound transmission impossible event occurs in step 440, the destination exchange 130 transmits the ring back tone (RBT) that was previously transmitted from the destination exchange 130 to the calling terminal 150.

In this case, various cases may be expected in the state in which the RBT cannot be transmitted. For example, there may be a case where the signaling point is down when the terminating exchange 130 transmits a circuit connection request message (IAM) for accessing the sound source providing server 140. In addition, there may be a case in which there is no available bearer channel for accessing the sound source providing server 140. In addition, when the receiving exchange 140 receives a release message (REL message) from the sound source providing server 140 after connection to the sound source providing server 140 (that is, an incoming response message (ANM)), the incoming exchange unit immediately exists. The RBT that 130 has sent should be sent to the sender.

Figure 5 is a flow chart illustrating a ring tone service subscription procedure according to an embodiment of the present invention.

Referring to FIG. 5, the subscriber DB storing the RBT service subscription information at step 510 transmits the RBT service subscription information to the home location register according to the subscription information. Here, the subscription information may be registration information of the ring back tone service, and may also be deletion information of the registered ring back tone service.

In step 520, the home location register sends an authorization data command message including the subscription information to the exchange. Here, the subscription information may include routing information for accessing the sound source providing server for providing a ring back tone.

In step 530, the exchange stores the subscription information received at the Visitor Location Register (VLR) in the subscriber profile, and then sends an authorization data command response message to the home location register.

6 is a flowchart illustrating a process of activating / deactivating a ring back tone service according to an exemplary embodiment of the present invention.

In step 610, the exchange sends a feature request message to the home location register to activate or deactivate the ring back tone service. Here, the RBT service may be an outgoing or incoming RBT service. In addition, the additional function request message may include a parameter value according to activation or deactivation of the ring back tone service. For example, when the Feature value is "* 55", the home location register may recognize the incoming call ring tone service activation request and activate the subscribed ring tone service. In addition, when the Feature value is "* 550", the home location register may recognize the call ring tone service deactivation request and deactivate the subscribed ring tone service. Of course, the feature value may have a distinct value from each other according to the additional service, and the feature value of the incoming call connection tone service may be set differently.

In step 620, the home location register activates or deactivates the requested service and transmits a response message.

In operation 630, the home location register may transmit an authorization data command message including the established ring back tone service information. Here, the RBT service information may include routing information for accessing a sound source providing server for providing RBT.

In step 630, the exchange sends a response message according to the authority data command to the home location register to terminate the activation / deactivation process of the ring back tone service.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes, and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

As described above, the system and method for providing a ring back tone service according to the present invention can provide a call ring tone set by a caller to a caller when the ring back tone service subscriber makes a call to a subscriber who does not have a ring back tone service. It has an effect.

In addition, the present invention has an effect that can be provided to the caller ringtone set by the called party to the caller when the called ringtone service subscriber to the caller.

In addition, the present invention has an effect that can provide a ring-tone service for creating a call atmosphere during the call.

Claims (10)

In the method for providing a ring tone service performed in a service system connected to a terminal through a communication network, (a) receiving a call request from a calling terminal subscribed to an incoming call ring tone service; (b) determining an incoming call ring tone subscription state of the called terminal; And (c) if the called terminal does not subscribe to the incoming call ring tone service, transmitting the incoming call ring tone of the calling terminal to the calling terminal. The method according to claim 1, And if the called terminal is in a subscription state of a ringing tone connection service, transmitting the ringing tone of the called terminal to the calling terminal. The method of claim 2, (d) determining whether an incoming call processing termination event has occurred; And (e) stopping the incoming call ring tone transmitted to the calling terminal when an incoming call processing end event occurs. The method of claim 3, The incoming call processing end event is any one of a state of power off, no paging, no answer, answer, shadow area, and busy state of the called terminal. How to give it. The method of claim 2, Determining whether an incoming call connection tone transmission impossible event occurs, and if the event does not occur, transmits the incoming call connection tone according to the incoming call connection tone service subscription state of the called terminal to the calling terminal, and the event occurs. And a ring back tone (RBT) to the calling terminal. In order to perform a method for providing a ring tone service to a terminal connected through a communication network, a program of instructions that can be executed by a service system is tangibly embodied, and on a recording medium recording a program that can be read by the service system. In (a) receiving a call request from a calling terminal subscribed to an incoming call ring tone service; (b) determining an incoming call ring tone subscription state of the called terminal; And (c) a recording medium recording a program for performing the step of transmitting the incoming call ring tone of the calling terminal to the calling terminal if the called terminal does not subscribe to the incoming call ring tone service. A service system for providing a ring tone service to a terminal through a communication network, Receiving call request from the calling terminal that subscribes to the incoming call ring tone service, and corresponding to the call request, the calling exchange to send a location request invoke message (Location Request invoke message) to the home location register, where the called location information request message Includes incoming call ring tone service subscription information of the calling terminal; A home location register transmitting a routing information request message to a destination exchange in response to the called location information request, and transmitting a called location information response message to the calling exchange when a routing information response message is received from the destination exchange; And When the circuit connection request message is received from the originating exchange, it includes a destination exchange for requesting the incoming call connection to the sound source providing server connected through the communication network to the calling terminal, The incoming call ring tone transmitted to the calling terminal is an incoming call ring tone of the calling terminal when the called terminal is not in the call ringing tone service subscription state, and if the called terminal is in the subscribed call ring tone service subscription state, the ring tone ring tone of the called terminal. Characterized by a service system. The method of claim 7, wherein When the calling terminal ringing ring tone service is subscribed state and the called terminal is not a call ring tone service subscription state, the routing information request message is routing information for accessing the sound source providing server that can provide the ring tone ring tone of the calling terminal Service system comprising a. The method of claim 7, wherein The incoming call connection tone is transmitted to the calling terminal from the time when the called exchange transmits a paging request message to the called terminal. The method of claim 7, wherein The terminating exchange further performs a process of stopping an incoming call ringing sound transmitted to the calling terminal in association with the sound source providing server when an incoming call processing end event occurs.

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