KR100974297B1 - System and method for servicing ring back tone - Google Patents

Abstract

The present invention relates to a ring back tone providing system and method thereof. In the ringback tone providing method of the present invention, the called local exchange checks whether the called party system subscribes to the ringback tone service in response to a call request from the calling party system, and if the called party system is subscribed to the ringback tone service, the call is sent to the intelligent network. If the call triggered by the called local exchange is an intelligent network service call, and the intelligent network service call, the called party system transmits a predetermined ringback tone to the calling system. In this way, various ringback tones desired by the called party can be sent to the sender using an intelligent network.

Ringback tone, intelligent network, wired network

Description

Ring back tone providing system and method thereof {SYSTEM AND METHOD FOR SERVICING RING BACK TONE}

1 is a view schematically showing the configuration of a ringback tone providing system in a wired network according to an embodiment of the present invention.

2 is a view showing a schematic flow of a ringback tone service providing method according to an embodiment of the present invention.

3 is a diagram illustrating a signal flow for providing a ringback tone service in a ringback tone service providing system according to an exemplary embodiment of the present invention.

The present invention relates to a ring back tone providing system and a method in a wired communication network.

In general, when a caller attempts to make a telephone call (outgoing call) in a wired / wireless communication network, an incoming exchange of a wired / wireless communication network that receives an outgoing call transmits a uniform ringback tone according to the ITU-T standard. Output through Therefore, the caller can listen to this ringback tone to check the status of the current called party (No answer, Busy, Paging No Response).

On the other hand, in recent years, a method in which a terminating exchange that receives a call in a communication network transmits arbitrary ringback tones previously designated by various called parties to the originating exchange instead of a uniform ringback tone, and is outputted through the caller's terminal. Proposed in 10-290289. The method proposed in this patent allows a ringback tone selected by the called party to be transmitted when a conventional ringback tone is transmitted to the calling party terminal when the caller sends a call to the called party's terminal subscribed to a service providing various ringback tones. will be. However, this patent relates to a ringback tone service method for a wireless communication network, and does not disclose a method for serving various ringback tones in a wired communication network.

Meanwhile, Korean Patent Registration Publication No. 10-2788898 proposes a method of serving various ringback tones in a wired communication network. However, this method does not provide the caller with the desired ringback tone to the caller, but provides a caller who subscribes to the service with a ringback tone that the subscriber wants, such as a company's announcement, to the caller. By listening to the ringback tone of the telecommunications, etc. to discount the price.

It is therefore an object of the present invention to provide a ringback tone providing system and method for designating a ringback tone desired by a called party subscribed to a service in a wired communication network.

Ring back tone service providing method according to the characteristics of the present invention for solving this problem is a ring back tone to the caller system through a ring back tone providing system consisting of an incoming local exchange and an intelligent network system including an intelligent additional device, a service exchange and a service control device. As a method of providing

a) forwarding, by the called local exchange, the call received from the calling system to the intelligent network system; And b) the intelligent network system analyzing the call received from the incoming local exchange to determine whether the received call is an intelligent network service call and, if the intelligent network service call, transmits the ringback tone prescribed by the called party system to the calling system. Include.

In addition, a system for providing a ringback tone to the caller system according to another aspect of the present invention,

An incoming local exchange transferring the call received from the originator system to the intelligent network system; And an intelligent network system for analyzing a call received from the called local exchange and transmitting a ringback tone corresponding to a called party identification number to the calling party system, wherein the intelligent network system transmits a ringback tone corresponding to a called party identification number to the calling party system. Providing intelligent add-on device; A service exchanger which checks whether the call received from the called local exchange is an intelligent network service call and informs the service controller of the intelligent network call occurrence when it is an intelligent network service call; And a service control device for controlling a call to be connected to the intelligent additional device at the request of the service exchanger.

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DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

First, a ring back tone providing system in a wired network according to an embodiment of the present invention will be described in detail.

Figure 1 shows a brief configuration of a ringback tone providing system in a wired network according to an embodiment of the present invention.

As shown in FIG. 1, a ringback tone providing system in a wired network according to an embodiment of the present invention includes a caller system 100, a called party system 200, a public switched telephone network 300, an intelligent network 400, and a network 500. ).

The caller system 100 includes a caller wired terminal 110 and a caller mobile communication terminal 120, and the caller system 200 includes a caller wired terminal 210. The called party's wired terminal 210 is subscribed to a ringback tone service.                     

Public Switched Telephone Network (PSTN) 300 includes an incoming Local Exchange (LE) 310, which is responsible for call processing for the destination wired terminal 210. do.

The intelligent network 400 is to provide a ringback tone service for the wired terminal 210 subscribed to the ringback tone service, and includes a service switching point (SSP) 410 and a service control device. Point (SCP) 420 and Intelligent Peripheral (IP) 430.

The service exchanger 410 connects the call to the public switched telephone network 300 according to the control signal of the service control device 420.

The service control device 420 may transmit a ringback tone desired by the called party to the caller system 100 when the call is requested from the caller system 100 to the called party system 200 subscribed to the ringback tone service. The control signal is transmitted to the intelligent additional device 430.

The intelligent additional device 430 includes a ring back tone service subscriber called party list and a database in which a ring back tone code is stored, and transmits the ring back tone specified by the called party system 200 according to a control signal of the service control device 420. To provide.

The network 500 provides the intelligent network 400 with various ringback tones, and is connected to the called party system 200 and plays various roles necessary for joining the ringback tone providing service and changing the ringback tone. To this end, the called party system 200 may further include a called party terminal 220 for accessing the network 500.

Next, the operation of the ringback tone service providing system according to an exemplary embodiment of the present invention will be briefly described with reference to FIG. 2.

Figure 2 shows a schematic flow of a ringback tone service providing method according to an embodiment of the present invention.

As shown in FIG. 2, first, the wired subscriber or the mobile communication subscriber of the calling system 100 calls the called party who subscribes to the ringback tone service according to the present invention through the calling party system 100 (S200).

Then, the incoming local exchange 310 checks the subscriber category to check whether the called party subscribes to the ringback tone service (S210).

As a result of the check, if the called party is subscribed to the ringback tone service, the called local exchange 310 calls the called party and simultaneously triggers the call of the called party to the intelligent network 400 (S220). The intelligent network 400 searches the database and transmits the ringback tone of the called party to the caller system 100 (S230).

Thereafter, when the called party answers, the called local exchange 310 connects the called party system 200 and the calling party system 100, and stops ringback tone transmission to the calling party system 100 (S260).

On the other hand, if the test result in the step S210, the called party is not subscribed to the ringback tone service, and transmits the general ringback tone stored in the destination local exchange 310 to the caller system 100 (S250).                     

Hereinafter, a service providing method in a ringback tone service system according to an exemplary embodiment of the present invention will be described in detail with reference to FIG. 3.

3 is a diagram illustrating a signal flow for providing a ringback tone service in a ringback tone service providing system according to an exemplary embodiment of the present invention.

As shown in FIG. 3, when the caller dials the telephone number of the ringback tone service subscriber through the caller system 100 (S300), the destination local exchange 310 of the public switched telecommunications network 300 checks the subscriber category. Check whether the dialed telephone number is subscribed to the ringback tone service (S301). In addition, the incoming local exchange 310 calls the called party system 200 corresponding to the telephone number dialed at the same time (S302). As a result of the check, if the called party system 100 is subscribed to the ringback tone service, the called local exchange 310 loads the service access code (SAC) and the called party's telephone number in an initial address message (IAM) to provide an intelligent network ( The call is triggered by the service switcher 410 of S400 (S303). At this time, if the called party system 100 is not subscribed to the ringback tone service, the called local exchange 310 sends the ringback tone basically stored to the calling party system 100 and routes the call to the called party system 200.

On the other hand, the service exchanger 410 triggering the call checks whether the telephone number of the corresponding terminating system 200 is the intelligent network 400 service number through the message transmitted from the incoming local exchange 310, and then controls the service if the intelligent network service number is used. The device 420 transmits a message informing the intelligent network call generation (S304). At this time, the intelligent network call generation message includes the calling number and the corresponding called number.                     

Upon receiving the intelligent network call originating message, the service control device 420 translates the called number included in the intelligent network call originating message and searches the intelligent additional device 430 in which the ringback tone sound source of the called number is stored in the ringback tone service subscriber database. After transmitting the message requesting call routing to the intelligent additional device 430 to the service switcher 410, the service switcher 410 disconnects the service switcher 410 (S305).

The service exchanger 410 receiving the call routing request from the service control device 420 sends an initial address message (IAM) to the corresponding intelligent additional device 430 to request a call connection (S306), and the intelligent additional device 430. When the connection is confirmed by transmitting an address complete message (ACM) to the destination local exchange 310 through the service exchanger (410) (S307 ~ 308), the destination local exchange 310 is the caller system 100 In step S309, an address completion message ACM is transmitted.

Meanwhile, the intelligent additional device 430 receiving the call connection request searches the database 431 of the corresponding calling number, accesses the network 400, finds the sound source, and then receives the local exchange 310 through the service switch 410. Send an answer message (Answer Message (ANM)) to the incoming connection response (S311 ~ 312), and transmits the sound source retrieved by the caller system 100 as a ringback tone (S313). At this time, the database 431 includes a called party number, a ringback tone code selected by the called party, an Internet Protocol (IP) address where the ringback tone sound source is actually stored, and the like. In addition, the destination local exchange 310 continues to request a call to the called party system 200 while the intelligent additional device 430 performs the above-described procedure for ringback tone service.                     

When the called party system 200 responds to the call request of the called local exchange 310 (S314), the called local exchange 310 is ringback tone to the intelligent additional device 430 which is transmitting the ring back tone to the caller system 100 A ringback tone cutting request is transmitted by sending a tearing message (Release Message; REL) (S315), and the intelligent additional device 430 terminates the call with the caller system 100 and cuts off the message to the destination local exchange 310. Release Complete Message (RELC) is transmitted to check ringback tone truncation (S316). Then, the destination local exchange 310 transmits a response message (ANM) to the caller system 100 (S317), and finally, the caller system 100 and the destination system 200 are connected (S318).

On the other hand, if the called party system 200 does not respond to the call request of the called local exchange 310, the called local exchange 310 is a call release message (Release Message; REL) to the intelligent additional device 430 and the caller system 100 End the call by sending

In addition, when the called party system 200 is busy, the called local exchange 310 does not trigger the call to the service switcher 410 in step S303 to terminate the call by sending a truncation message (REL) to the caller system 100. do.

In addition, when the connection to the intelligent additional device 430 fails in step S306, the destination local exchange 310 sends the ringback tone stored basically to the calling party system 100 without ending the outgoing call and the called party system 200 Try to call.

On the other hand, the receiver system 200 to receive the ringback tone service according to the present invention can access the network 500 through the called terminal 220 to apply for the ringback tone service. When applying for the service, the called party can select the telephone number of the called party and the type of ringback tone to be served, and the called party can change the information. In addition, if there is no ringback tone desired by the called party, it can be applied through a bulletin board, e-mail, or the like. If the ringback tone applied by the called party is updated, the called party can be notified and changed.

 Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited thereto, and various other changes and modifications are possible.

As described above, using the ringback tone service system of the present invention, it is possible to send various ringback tones desired by the called party to the caller using an intelligent network. In addition, there is no need to build a separate equipment or system can reduce the cost.

Claims (8)

A method for providing a ringback tone to a caller system through a ringback tone providing system comprising an incoming local exchange and an intelligent network system including an intelligent supplementary device, a service exchanger, and a service control device, a) forwarding, by the called local exchange, the call received from the calling system to the intelligent network system; And b) the intelligent network system analyzing the call received from the incoming local exchange to determine whether the received call is an intelligent network service call, and if the intelligent network service call, the called party system transmits a predetermined ringback tone to the calling system; Ringback tone providing method comprising a. The method of claim 1, Step a) is The called local exchange checks the service subscription information of the called party system to determine whether to subscribe to the ringback tone service, and if the ringback tone service is subscribed to, the pre-registered service access code and the called party's telephone number are included in the initial address message. Forwards the call to the service exchange of the intelligent network system, Ringback tone providing method for forwarding the call to the intelligent network system and simultaneously calling the called party system. The method of claim 1, B), i) If the service exchange examines the call received from the called local exchange and transmits the message indicating the generation of the intelligent network call to the service control device if the intelligent network service call, the service control device sends the ringback tone sound source to the service exchanger. Transmitting a message requesting a call connection to the providing intelligent additional device; ii) if the service exchange sending the message requesting the call connection requests a call connection to the intelligent additional device, and the intelligent additional device confirms the connection to the destination local exchange through the service exchange, the incoming local exchange Notifying the caller system of completion of connection; And iii) the intelligent additional device searching for ringback tone information of the called party system, transmitting a response message to the called local exchange through the service exchanger, and then transmitting the retrieved ringback tone to the calling system; Ringback tone providing method comprising a. The method of claim 3, In step iii), The ringback tone information of the called party system includes a called number of the called party system, a code of a ringback tone sound source selected by the called party system, and IP address information in which the ringback tone sound source is stored. The intelligent additional device transmits the ringback tone to the caller system by accessing the ringback tone sound source to the IP address through the stored IP address information. How to provide ringback tone. The method of claim 1, c) if the called party system responds to a call of the called local exchange, the local exchange requests ringback tone truncation with the intelligent attachment and the intelligent attachment truncates ringback tone transmissions; And d) the called local exchange sending a response message to the calling system and connecting the calling system and the called system; Ringback tone providing method further comprising. In a system for providing a ringback tone to a caller system, An incoming local exchange transferring the call received from the originator system to the intelligent network system; And An intelligent network system for analyzing a call received from the called local exchange and transmitting a ringback tone corresponding to a called party identification number to the calling system; The intelligent network system, An intelligent additional device for providing a ringback tone corresponding to a called party identification number to the caller system; A service exchanger which checks whether the call received from the called local exchange is an intelligent network service call and informs the service controller of the intelligent network call occurrence when it is an intelligent network service call; And A service control device for controlling a call to be connected to the intelligent additional device at the request of the service exchanger Ringback tone providing system comprising a. The method of claim 6, It is connected to the intelligent additional device, further comprising a database for storing ringback tone information corresponding to the called party identification number, The ringback tone information stored in the database includes a called number of the called party system, a code of a ringback tone sound source selected by the called party system, and IP address information storing the ringback tone sound source. Ringback tone delivery system. The method of claim 6, The called local exchange transfers a call to the intelligent network system and simultaneously calls the called party system. Ringback tone delivery system.

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