KR20020097049A - RBT Source Query Method in Subscriber-based Ring-Back-Tone Service - Google Patents

Abstract

PURPOSE: A method for inquiring a sound source in a subscriber-based ringback tone service is provided to inquire a corresponding sound source of a termination subscriber from an IP having a plurality of sound sources to a IP server. CONSTITUTION: If an ISUP(Integrated Services Digital Network User Part) call connection is requested to an adjacent IP(50) from an origination MSC(31) and a mutual trunk channel is configured(S501), the IP(50) searches routing information corresponding to a telephone exchange number of a termination subscriber from the first database on the basis of a telephone number of the termination subscriber(S502). The IP routes searched routing information to a IP server(70), and inquires and requests a sound source code to the IP server(70) on the basis of telephone number information of the termination subscriber(S503). The IP server(70) searches a sound source code corresponding to the telephone number of the termination subscriber from the first database according to the request(S504), and transmits the searched sound source code to the IP(50)(S505). The IP(50) searches a sound source corresponding to the sound source code from the second database(S506), and transmits the searched sound source to a corresponding caller through a channel configured with the origination MSC(31)(S507).

Description

RBT Source Query Method in Subscriber-based Ring-Back-Tone Service

The present invention relates to a sound source query method in a subscriber-based ringback tone service, and more particularly, to improve a conventional ringback tone scheme by providing a specific sound desired by a called subscriber as a ring back tone. In implementing a subscriber-based ringback tone service, the present invention relates to a method for inquiring about a sound source (ie, the specific sound) of the called subscriber corresponding to a sound source providing control server from a sound source providing apparatus having a plurality of sound sources.

In general, when a caller attempts to make a phone call in an existing mobile communication network, the receiver of the called subscriber adopts a method of giving a uniform ringback tone to the caller. However, such a conventional ringback tone method uses a uniformly identical tone. Since the caller cannot determine whether there is a misconnection until the answer of the called party, there is also a problem that can not provide a variety of ringback tone replacement service to meet the characteristics of the user.

On the other hand, in recent years, a method of listening to various advertisement sounds instead of the uniform ringback tone has been proposed, but this also gives a caller a specific advertisement sound selected by a network operator without a subscriber's option and then a predetermined time. Since it is a way to make a free call for a while, the caller cannot determine whether there is a misconnection until the answer of the called party, and furthermore, there is a problem in that it cannot provide various ringback tone services that match the characteristics of the user.

In order to solve such a problem, a subscriber-based ringback tone service method has been proposed by the applicant of the present invention to provide a caller instead of an existing ringback tone to a specific sound registered or selected by a called subscriber. A description with reference to 2 as follows.

1 is a flowchart of a subscriber-based ringback tone service method using a destination exchange previously proposed by the applicant of the present invention. Refer to National Application No. 10-2002-0010006 (Application Date: 2002.02.25).

First, when an arbitrary caller calls a service subscriber (hereinafter referred to as a called subscriber) according to the proposal and requests a call connection, the calling exchange 31 requests the called location information from the home location register 10 ( Location Request) (S101).

The home location register 10 requests routing information from the destination exchange 32 according to the request (Routing Request) (S102), and accordingly, the destination exchange 32 sends routing information to the home location register 10. (Ie, provide a TLDN: Temporary Local Directory Number) and respond (S103).

The home location register 10 transmits the routing information to the originating exchange 31 and responds to the step S101 (S104). Accordingly, the originating exchange 31 transfers the destination exchange based on the routing information. 32) requests a trunk (hereinafter referred to as ISUP) call connection to form a mutual call path (S105).

Then, the destination exchange 32 receives a call from the home location register 10 when registering a location, and the called party receives the present invention based on service setting information for the present proposal and the routing information to the sound source providing device 50. If it is determined that the subscriber is a service and the service is activated, the ISUP call connection is made to the sound source providing apparatus 50 based on the routing information to form a trunk trunk path, and the caller ID and the outgoing telephone number are also provided. S106). As a result, the call exchanger 31, the call exchanger 32, and the sound source providing device 50 are in a state in which a call path is formed. For reference, the service setting information and the routing information are provided in a location registration response message provided from the home location register 10 to the destination exchange 32 when the location is registered.

The sound source providing device 50 queries the sound source providing control server 70 by requesting a sound source code based on the received incoming call number and the outgoing call number information (S107), and the sound source providing control server 70. Search for a designated sound source code in association with the provided incoming / outgoing telephone number according to the request, and transfers the found sound source code to the sound source providing device 50 in response to step S107 (S108), wherein the sound source providing device 50 transmits a substitute sound corresponding to the received sound source code to the caller through the formed communication path instead of ring back tone (S109).

Finally, the destination exchange 32, when the incoming subscriber receives a call while the replacement sound is being transmitted instead of the ringback tone as described above, requests the sound source providing device 50 to release the ISUP call, and the sound source providing device. 50 to release the call (S110). At the same time, a call is made between the caller and the called subscriber through the call path mutually formed with the calling exchange 31 (S111).

2 is a flowchart of a subscriber-based ringback tone service method using an originating exchange previously proposed by the applicant of the present invention. Refer to National Application No. 10-2002-0047212 (filed date: Aug. 09, 2002).

First, when an arbitrary caller calls a service subscriber (hereinafter referred to as a called subscriber) of the present invention and requests a call connection, the calling exchange 31 requests the called location information from the home location register 10 (Location). Request (S201).

The home location register 10 requests routing information from the destination exchange 32 according to the request (Routing Request) (S202), and accordingly, the destination exchange 32 transmits routing information to the home location register 10. (Ie, provide a TLDN: Temporary Local Directory Number) and respond (S203).

The home location register 10 transmits the routing information to the originating exchange 31 and responds to step S201. In particular, the home location register 10 checks the subscriber profile in response to whether the called party is the service subscriber of the present invention (that is, the incoming call. After confirming whether the terminal is subscribed to the service of the present invention) (S204), if it is not a subscriber, it includes only the TLDN information in the response message for the called location information request in the same manner as the conventional method, and drops it to the originating exchange 31. (S205-1), in the case of the subscriber, in the response message, the service setting information of the present invention and the routing information to the sound source providing device 50 (e.g., routing number to the sound source providing device 50: RoutingDigits) are included. To the outgoing exchange 31 (S205-2).

The originating exchange 31 transfers a trunk only to the destination exchange 32 based on the response message provided according to the result of performing the step S205-1 or the step S205-2 from the home location register 10. trunk (or referred to as ISUP) to request a call connection to form a mutual call path (S206), or at the same time to request the ISUP call connection selectively to the sound source providing apparatus 50 to form a mutual call path (S207). .

Subsequently, when the call path with the call exchanger 31 is formed according to the step S507, the sound source providing device 50 sends the sound source providing control server 70 to the sound source providing control server 70 based on the received incoming call number and the outgoing call number information. The sound source code is queried and requested (S208), and the sound source providing control server 70 searches for a designated sound source code in association with the provided incoming and outgoing telephone number according to the request and sends the searched sound source code to the sound source providing device ( 50) and responds to step S208 (S209), the sound source providing device 50 transmits to the caller through the formed call path with a ring back tone corresponding to the received sound source code (S210). ).

Lastly, the call exchanger 31 requests the ISUP call release to the sound source providing device 50 when the called subscriber receives a call while the replacement tone is being transmitted to the ringback tone as described above, and then provides the sound source providing device. 50 to release the call (S211). At the same time, a call is made between the caller and the called subscriber through the call path mutually formed with the called exchange 31 (S212).

However, since the number of subscribers is not large in the initial stage of service, a plurality of exchanges 31 and 32 distributed nationwide with the single or small number of the sound source providing apparatuses 50 in the center provide the single or few sound source providing apparatuses 50. As the number of subscribers increases, intensive and excessive occupancy occurs on trunk resources connected to a single or a few sound source providing devices in a plurality of exchanges, which can lead to service outages. There was.

The present invention has been made to solve the above problems, and its object is to provide a subscriber-based ringback tone service so that it is possible to connect from the switch to the nearest sound source providing apparatus at the switch without passing through the gateway. In order to prevent excessive occupancy, it is to provide a sound source query method in a subscriber-based ringback tone service.

1 is a flowchart of a subscriber-based ringback tone service method using a destination exchange previously proposed by an applicant of the present invention;

2 is a flowchart of a subscriber-based ringback tone service method using an originating exchange previously proposed by the applicant of the present invention;

3 is a standard block diagram of a subscriber-based ringback tone service device to which the method of the present invention is applied;

4 is a diagram illustrating an example of a network connection relationship between an exchange, a sound source providing apparatus, and a sound source providing control server in FIG. 3 according to the present invention;

5 is a flowchart illustrating a sound source query method in a subscriber-based ringback tone service according to an embodiment of the present invention;

6 is a first database configuration diagram of a sound source providing apparatus according to the present invention;

7 is a database configuration diagram of a sound source providing control server according to the present invention;

8 is a block diagram of a second database of the sound source providing apparatus according to the present invention.

※ Explanation of code for main part of drawing

10: Home Location Register 20: No.7 Network

31,32: Exchange 40,90: Gateway

50: sound source providing device 60: Internet network

70: sound source control server 80: subscriber storage database

100: web server

In order to achieve the above object, a sound source query method in a subscriber-based ringback tone service according to the present invention is a routing method for sound source query from a sound source providing apparatus to a sound source control means during processing of a subscriber-based ringback tone service. Based on the information of the called subscriber provided from the corresponding exchange connected to the trunk, the corresponding sound source is provided among a plurality of sound source providing control servers classified by subscriber number, by subscriber's station number, by group of station numbers, or by the subscriber's main activity area. A first step of retrieving routing information to the control server; And a second step of routing to the corresponding sound source providing control server based on the found routing information, and querying and obtaining a code of the sound source based on the information of the called subscriber.

The sound source providing apparatus has a sound source for all subscribers corresponding to the code, and is installed to directly connect a trunk from one or more adjacent exchanges based on a single routing information.

The sound source providing apparatus and the sound source providing control server are configured to communicate with each other based on an Internet protocol, and the plurality of sound source providing control servers have the code information for specifying a sound source of a subscriber corresponding to the called subscriber information. According to the subscriber number, by the subscriber's station number, by the group of the station number or by the main activity area of the subscriber.

Hereinafter, a sound source query method in a subscriber-based ringback tone service according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a standard block diagram of a subscriber-based ringback tone service apparatus to which the method of the present invention is applied, as shown in the figure, a home location register (HLR) 10; Switch (O_MSC / VLR, T_MSC / VLR) (31,32) that communicates with the home location register (HLR) 10 via a No.7 network (20) based on a Signaling Transfer Protocol (STP). ; A sound source providing device (Intelligent Peripheral: IP) 50 connected to the No. 7 network 20 and communicating with the exchanges 31 and 32 via a gateway (CGS) 40; A sound source providing control server (IP server) 70 for data communication with the sound source providing apparatus 50 via the Internet network 60; A subscriber database (80) connected to the home location register (10) via the internet network (60); It is composed of a Web server (Web Server) 100 connected to the Internet network 60 via a gateway 90 to communicate with the sound source providing apparatus 50 and the sound source providing control server 70.

The home location register 10 has all of the functions of the existing network components, and receives the first information on the presence or absence of ringback tone replacement and the second information for routing to the sound source providing device 50. A function which has a preset function as profile information for is newly added, and the information is set and stored as additional service subscription information of the called party profile.

The exchanges 31 and 32 have all functions as existing network components, and for example, (ie, according to the method of FIG. 1), the switch 31 and 32 communicate with the home location register 10 when registering the location of the called subscriber. Receives and stores the first and second information and receives a sound source for replacing a ringback tone by communicating with the sound source providing apparatus 50 based on the stored first and second information when requesting a call connection to a called subscriber. In addition, the received sound source further has a feature of providing the caller as a ringback tone replacement sound, and as another example (ie, according to the method of FIG. 2), the home location register 10 in the process of performing a function as an originating exchange. The first information and the first information included in the called location information response message at the same time as requesting a call connection to the corresponding destination exchange when receiving the called location information response message provided from the The apparatus may further include requesting a call connection to the sound source providing apparatus 50 based on the second information.

The sound source providing device 50 stores various sound sources and is connected to the exchanges 31 and 32 via the gateway 40 to communicate with the exchange sources 31 to provide the stored sound sources to the exchanges 31 and 32. Although having a function is a standard feature in the subscriber-based ringback tone service method as shown in Figs. 1 and 2, in the present invention, it is possible to directly connect a trunk based on single routing information with one or more adjacent exchanges without going through a gateway. Locally distributed features are installed (see the description in Figure 4 below), for this purpose to store the sound source for all subscribers corresponding to the code, and also the information of the called subscriber provided from the trunk-connected corresponding exchange Multiple sound sources divided by subscriber number, subscriber's station number, group of station number, or by subscriber's main activity area based on Identifies routing information to a corresponding sound source providing control server among public control servers (see description of FIG. 4), routes the information to the corresponding sound source providing apparatus based on the identified routing information, and then sends information of the called subscriber. On the basis of this, it has the feature of querying and obtaining the code of the sound source.

The sound source providing control server 70 communicates with the sound source providing device 50 via the Internet network 60, so that the sound source providing device 50 is provided to the switchboards 31 and 32. The type is specified based on a single or combination of identification information of a called subscriber who is requested to make a call connection, identification information of a caller corresponding thereto, and call connection request time zone information. Each of the caller by age, gender, occupation, and / or calling time zone, etc.). For example, a code is given to various sound sources stored in the sound source providing device 50, and the called party joins. Alternatively, when the information is changed, the caller, the caller group, the call time zone, etc. are selected and the corresponding sound source is specified. The code information is linked to the subscriber information to the table. Provided that there is, the code information of the subscriber that is a query from the sound source providing apparatus 50 to the sound source-providing device 50 will be such that the sound source of the code provided on the side of the heat exchanger (32).

The web server 100 is connected to the sound source providing apparatus 50 or the sound source providing control server 70 via the Internet network 60, to add the sound source stored in the sound source providing apparatus 50 or In order to change the information (specific caller, caller group, call time zone, etc.) and the corresponding sound source code for the sound source specification of the sound source providing control server 70, which is provided by the subscriber in the web server 100 This can be done via a web page.

FIG. 4 is a diagram illustrating an example of a network connection relationship between the switch 31 and 32, the sound source providing apparatus 50, and the sound source providing control server 70 in FIG. 3, as shown in FIG. The sound source providing device 50 (IP # n, IP # (n + 1), IP # (n + 2), IP # (n + 3)) is one or more adjacent exchange (MSC) 31,32 And distributed locally so as to directly access a trunk based on a single routing information, and the sound source providing apparatus 50 (IP # n, IP # (n + 1), IP # () distributed locally in this way. n + 2) and IP # (n + 3)) are based on the information of the called subscriber provided from the corresponding exchanges 31 and 32 that are trunked, respectively, by the system operator by subscriber number, by subscriber's station number and station number. For example, the corresponding sound source system among the centrally provided sound source control control server 70 (IP server #n, IP server # (n + 1)), which is classified by group or subscriber's main activity region Identifying routing information to a control server 70 (one of IP server #n and IP server # (n + 1)) and providing the corresponding sound source control server through the Internet network 60 based on the identified routing information. It is possible to query the code of the sound source by routing to (70; one of IP server #n and IP server # (n + 1)).

FIG. 5 is a flowchart illustrating a sound source query method in a subscriber-based ringback tone service according to an embodiment of the present invention. For convenience of description, routing information from a sound source providing device 50 to a sound source providing control server 70 is shown. It is assumed that they are classified by subscriber number, by subscriber number, by subscriber's station number, by group of station numbers, or by the subscriber's main activity area.

First, as in step S106 of FIG. 1 or step S207 of FIG. 2, the sound source providing device 50 which is proximate from the originating exchange 31 or the destination exchange 32; IP # n in FIG. 4, IP # (n +1), requesting ISUP call connection to one of IP # (n + 2) and IP # (n + 3) to form a mutual trunk call path (S501).

The sound source providing apparatus 50 is based on the telephone number of the called subscriber provided in the step S501, as shown in Figure 6 routing information to the sound source providing control server 70 for each subscriber's station number is divided and stored Searching routing information corresponding to the station number of the called subscriber in the database, if the telephone number of the called subscriber is '293-XXXX' routing information corresponding to the station number '293', that is, the sound source providing control server 50 The routing information to the IP server #n is identified and found (S502).

The sound source providing apparatus 50 routes to the sound source providing control server 70 (IP server #n) according to the identified routing information, and the sound source providing control server based on the received telephone number information of the called subscriber. 70, query and request the sound source code (S503).

The sound source providing control server 70 (IP server #n), in response to the request of step S503, in its database in which code information is stored in association with the subscriber's telephone number as shown in FIG. 7, the telephone number of the called subscriber '293-XXXX'. The sound source code '07' corresponding to '' is searched for (S504), and the searched sound source code '07' is transmitted to the sound source providing apparatus 50 in response to the step S503 (S505).

The sound source providing device 50 searches for a sound source # 7 corresponding to the sound source code '07' received in the step S505 in its own second database in which the sound source code and the sound source are respectively stored as shown in FIG. 8 (S506). In step S507, the searched sound source # 7 is transmitted to the caller through the communication path formed with the switch 31 and 32 in place of the ringback tone.

As described in detail above, according to the sound source query method in the subscriber-based ringback tone service according to the present invention, it is possible to install the sound source providing apparatus in a geographically distributed manner close to the exchange without a gateway, thereby establishing a trunk resource between the exchange and the sound source providing apparatus. It saves money, prevents excessive occupancy of trunk resources, and achieves fast ringback tone replacement.

Claims (6)

In the routing method for querying the sound source from the sound source providing device to the sound source control means during the processing of the subscriber-based ringback tone service, On the basis of the information of the called subscriber provided from the trunk-connected switch, the sound source providing control server among the sound source providing control servers classified by subscriber number, by subscriber's station number, by group of station numbers, or by the subscriber's main activity area. Searching for routing information of the first step; And And a second step of routing to the corresponding sound source providing control server based on the found routing information, and querying and obtaining a code of the sound source based on the information of the called subscriber. Sound source query method in service. The method of claim 1, The sound source providing apparatus has a sound source query method in a subscriber-based ringback tone service, characterized in that to have all the subscriber's sound source corresponding to the code. The method according to claim 1 or 2, The sound source providing apparatus is installed so as to allow direct trunk access based on a single routing information from one or more adjacent exchanges, the sound source query method in a subscriber-based ringback tone service. The method of claim 1, A sound source query method in a subscriber-based ringback tone service, wherein the sound source providing device and the sound source providing control server communicate with each other based on an internet protocol. The method of claim 1, The method of claim 1, wherein the information of the called subscriber is a telephone number of the called subscriber. The method of claim 1, The sound source providing control server classifies the code information specifying the sound source of the subscriber by subscriber number, by subscriber's station number, by group of station numbers, or by the subscriber's main activity area, and corresponds to the called subscriber information. Sound source query method in a subscriber-based ringback tone service, characterized in that configured to.