KR20050051943A - Method and apparatus for providing substituted ring back tone and voice mail service with unified intelligent peripheral - Google Patents

Abstract

The present invention relates to a method and apparatus for providing a ring back tone replacement tone service and a voice mailbox service using a single supplementary service device. An additional service providing method using a single supplementary service apparatus according to the present invention comprises the steps of receiving a call connection request from a destination exchange, where the call connection request corresponds to a call connection request received by the destination exchange from an originating exchange. Sending a call connection request to a single supplementary service device in response to the connection request; receiving a call connection request response corresponding to the call connection request from the single supplementary service device; and receiving a call connection request response corresponding to the call connection request response. And transmitting to the destination exchange, wherein the destination exchange sends a call connection request response to the originating exchange corresponding to the call connection request response to form a call path between the single additional service device and the originating terminal. Write down the ringback tone alternative sound service and voice mailbox service It is characterized by providing an additional service including one.

Description

Method and apparatus for providing ring back tone replacement sound service and voice mailbox service using a single supplementary service device {Method and apparatus for providing substituted ring back tone and voice mail service with unified intelligent peripheral}

The present invention relates to a method and apparatus for providing a ringback tone replacement tone service and a voice mailbox service using a single supplementary service device.

Currently, various ringback tone replacement sound services are provided instead of the general ringback tone transmitted to the calling subscriber in a communication network such as a general telephone network or a mobile communication network. In addition, when the called terminal does not answer or the call cannot be made with the called terminal, the calling subscriber may record a voice message or leave a call back telephone number of the calling subscriber. Voice mailbox supplementary services that can verify the voice message or telephone number are widely used.

1A and 1B are diagrams schematically illustrating a configuration for providing a voice mailbox service and a ringback tone replacement tone service according to the prior art.

Referring to FIG. 1A, an apparatus for providing a voice mail service according to the related art includes a terminal 101, an exchange 103, a home location register (HLR) 105, and a voice mail service system (Voice Mail System); VMS, 107).

The voice mailbox service device 107 is combined with the switch 103 to notify the called party through a short message service or a message waiting notification when the caller leaves a voice message or a phone number when the called party cannot receive a call. Perform.

Referring to FIG. 1B, the apparatus for providing a ringback tone substitute sound service according to the related art includes a terminal 101, an exchange 103, a home location register 105, and a ringback tone substitute tone device 109.

The ringback tone substitute tone device 109 combines with the switch 103 and replaces the existing ringback tone to provide the caller with a sound source set by the called party as a ring back tone when the caller attempts to make a call.

As shown in FIGS. 1A and 1B, in the related art, a voice mailbox service device 107 and a ringback tone substitute sound device 109 have been combined with the switch 103 to provide a voice mail service and a ringback tone substitute sound service, respectively. . In fact, the call processing steps of the voice mailbox service device 107 and the ring back tone substituting device 109 and the service device configuration are almost similar. However, since the two service apparatuses are installed and operated independently, each signal line and voice line are required, which is expensive.

2 is a signal flowchart of a mobile communication network for providing a ring back tone replacement sound service according to the prior art.

2, when the calling terminal requests a call connection to the called terminal corresponding to the called party subscribed to the ringback tone replacement tone service, the calling exchange sends LocReq (Location Request) to the home location register to query the location of the called terminal. (Step 201). The home location register sends a routing out request, RoutReq (Routing Request), to the destination exchange to query the destination terminal (step 203). The destination exchange sends a routReq including routing information (TLDN: Temporary Local Directory Number) to the home location register in response to the RoutReq signal received from the home location register (step 205). The home location register then forwards locReq to the originating exchange using the received routing information (step 207).

The originating exchange requests an ISUP call connection to the destination exchange based on the routing information (step 209). The destination exchange extracts ring back tone replacement tone service setting information previously stored in the storage device according to the ISUP call connection request signal received from the originating exchange. When the user corresponding to the called terminal is the ring back tone substitute tone service subscriber, the ISUP call connection request signal is transmitted to the sound source providing apparatus using routing information corresponding to the prestored sound source providing apparatus (step 211). At this time, the ISUP call connection request signal includes a called terminal identifier and a calling terminal identifier. As a result of this process, a call path is formed between the originating exchange, the destination exchange, and the sound source providing device.

The sound source providing apparatus requests a sound source code to the sound source providing control server based on the received called terminal identifier and the calling terminal identifier (step 213). In response to the sound source code request signal, the sound source providing control server searches for a sound source code stored in connection with the called terminal identifier and the calling terminal identifier, and transmits the found sound source code to the sound source providing apparatus (step 215). Thereafter, the sound source providing apparatus transmits a ringback tone substitute sound corresponding to the sound source code received from the sound source providing control server to the calling terminal using the call path (step 217). When the terminating exchange recognizes that the terminating terminal responds while the ringback tone substitute tone is being transmitted to the calling terminal, the terminating exchange requests the ISUP call release to the sound source providing apparatus (step 219). The sound source providing apparatus releases the call path set between the called exchanger and the sound source providing apparatus after receiving the ISUP call release request signal from the called exchange. Thereafter, the called terminal performs a normal call using the call path established with the calling terminal (step 221).

Conventionally, as a method for providing a ringback tone replacement sound service, there is a method of providing a service in a distributed or centralized manner in which the sound source providing apparatus and the sound source providing control server are located for each switch. The centralized scheme presupposes an intelligent network or a wireless intelligent network that must combine an IP (Intelligent Peripheral) at the back of the incoming exchange and have a new exchange, SCP (Service Control Point), for this purpose. . For this reason, there is a problem in that an additional switch-on (SSP) function must be added separately in order to interwork with the existing exchanger with SCP / IP. That is, there is a problem in that an astronomical cost is required to add an SSP function to an existing exchange or to replace an existing exchanger with an SSP.

In addition, in the distributed and centralized methods, when the subscriber moves to any area with his own terminal, any corresponding destination exchange must provide ringback tone replacement tone service. In order to implement this, there is a problem that a database of ringback tone replacement sounds must be held in all supplementary service systems interworking with the destination exchange. That is, when a subscriber records a new sound source and selects it as its ring baton, there is a problem in that the same sound source is copied and synchronized in an additional service system interworking with all exchanges. In short, the distributed and centralized methods require a large number of signal point resources for interworking with an additional service system. In addition, since each additional service system must have a database having the same content, there is a problem that installation and operation costs thereof increase exponentially as service subscribers increase.

Disclosure of the Invention An object of the present invention is to provide a ringback tone replacement sound service and a voice mailbox service by a single supplementary service device capable of unifying the use of different supplementary service devices for a ringback tone replacement sound service and a voice mailbox service in an existing mobile communication network. It is an object of the present invention to provide a method and apparatus.

Another object of the present invention is a ringback tone replacement sound service and voice mailbox service by a single supplementary service device capable of significantly reducing the capacity of a database for supplementary services through minimal modification to functions such as a pre-installed switch in an existing mobile communication network. It is to provide a method and apparatus for providing.

In order to achieve the above objects, according to an aspect of the present invention, an additional service by a single additional service device in a home exchange that is combined with an originating exchange corresponding to the originating terminal, a destination exchange corresponding to the called terminal and a single additional service device. Receiving a call connection request from the destination exchange, wherein the call connection request corresponds to a call connection request received by the destination exchange from the originating exchange; Correspondingly sending a call connection request to the single supplementary service apparatus, receiving a call connection request response corresponding to the call connection request from the single supplementary service apparatus and a call connection request response corresponding to the call connection request response Transmitting to the destination exchange, wherein the destination exchange Sending a call connection request response to the originating exchange in response to the call connection request response to form a call path between the single supplementary service device and the calling terminal, wherein the single supplementary service device uses ring back tone It is possible to provide a method for providing an additional service by a single additional service device, wherein the additional service includes at least one of a substitute sound service and a voice mailbox service.

The method may further include receiving a call disconnection request from the destination exchange when the called terminal responds to the call connection request, and transmitting a call disconnection request to the single additional service device in response to the call disconnection request. Receiving a disconnect request response from a call corresponding to the disconnect request from the single supplementary service device, and transmitting a disconnect request request to the destination exchange corresponding to the disconnect request response from the call; In addition, the call path is disconnected between the single additional service device and the destination exchange by the call disconnection request.

In a preferred embodiment, the terminating exchange determines whether the terminating terminal has subscribed to the additional service, and if the terminating terminal has subscribed to the additional service, routing to the home exchange.

According to another aspect of the present invention, there is provided a method for providing an additional service in a single additional service device that is combined with an originating exchange corresponding to an originating terminal, a destination exchange corresponding to a terminating terminal, and a home exchange, the call connection request from the home exchange. Receiving a call, wherein the call connection request corresponds to a call connection request sent by the destination exchange to the home exchange in response to a call connection request received from the originating exchange. Sending a call connection request response to the home exchange, wherein the home exchange sends a call connection request response corresponding to the call connection request response to a destination exchange, the destination exchange corresponding to the call connection request response Send a connection request response to the originating exchange; and according to the call connection request response. And providing an additional service including at least one of a ringback tone replacement tone service and a voice mailbox service by using the formed call path with the calling terminal. can do.

According to still another aspect of the present invention, there is provided an originating exchange corresponding to an originating terminal, a destination exchange corresponding to a terminating terminal, and a home exchanger used in combination with a single supplementary service device to provide an additional service, wherein the call connection is made from the terminating exchange. Means for receiving a request, wherein the call connection request corresponds to a call connection request received by the destination exchange from the originating exchange, and sends a call connection request to the single supplementary service apparatus in response to the call connection request. Means for receiving a call connection request response corresponding to the call connection request from the single additional service apparatus, and means for sending a call connection request response corresponding to the call connection request response to a destination exchange, The exchange exchanges a call connection request response corresponding to the call connection request response. Transmitting to the originating exchange to form a call path between the single supplementary service device and the calling terminal, wherein the single supplementary service device includes at least one of a ringback tone replacement tone service and a voice mailbox service using the call path; It is possible to provide a home exchanger characterized in that it provides additional services.

According to another aspect of the present invention, in a single additional service device that provides an additional service in combination with an originating exchange corresponding to the originating terminal, a destination exchange corresponding to the terminating terminal and a home exchange, providing a call connection request from the home exchange Means for receiving, wherein the call connection request corresponds to a call connection request sent by the destination exchange to the home exchange in response to a call connection request received from the originating exchange—the call corresponding to the call connection request. Means for sending a connection request response to the home exchange, wherein the home exchange sends a call connection request response corresponding to the call connection request response to a destination exchange, the destination exchange corresponding to the call connection request response Send a request response to the originating exchange—and by the call connection request response Configured, it is possible to provide a single value added services and means for providing an additional service comprises at least one of a ringback tone replacing sound service and voice mail service by using the currency, with the sending terminal.

According to still another aspect of the present invention, an originating exchange corresponding to an originating terminal, a destination exchange corresponding to a terminating terminal, and a home exchanger providing a supplementary service in combination with a single supplementary service device, the memory in which a program is stored and the A processor coupled to a memory to execute the program, wherein the processor receives, by the program, a call connection request from the destination exchange, wherein the call connection request is received by the destination exchange from the originating exchange. Corresponding to a call connection request, sending a call connection request to the single supplementary service apparatus in response to the call connection request, receiving a call connection request response corresponding to the call connection request from the single supplementary service apparatus, Call connection request response corresponding to the call connection request response Send to a destination exchange, wherein the destination exchange sends a call connection request response to the originating exchange in response to the call connection request response to form a call path between the single supplementary service apparatus and the originating terminal, and the single supplementary service The apparatus may provide a home exchanger using the call path, which provides an additional service including at least one of a ringback tone replacement tone service and a voice mailbox service.

According to another aspect of the present invention, a single additional service device that provides an additional service in combination with an originating exchange corresponding to the originating terminal, a destination exchange corresponding to the terminating terminal, and a home exchange, comprising: a memory in which a program is stored; A processor coupled to memory to execute the program, wherein the processor receives, by the program, a call connection request from the home exchange, wherein the call connection request is received by the destination exchange from the originating exchange. Corresponds to a call connection request sent to the home exchange in response to a call connection request, and sends a call connection request response corresponding to the call connection request to the home exchange, where the home exchange responds to the call connection request response. Sends a call connection request response corresponding to the destination exchange. The destination exchange sends a call connection request response to the calling exchange in response to the call connection request response; ringback tone replacement tone service and voice mailbox using a call path with the calling terminal formed by the call connection request response. A single additional service device may be provided that includes providing an additional service including at least one of the services.

Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a diagram illustrating a configuration of an apparatus for providing an additional service according to an exemplary embodiment of the present invention.

Referring to FIG. 3, an apparatus for providing an additional service by a single additional service device includes an originating exchange 301, a destination exchange 303, a home exchange 305, a single additional service device 307, and a home location register ( A Home Location Register (HLR) 309, a calling terminal 311 and a called terminal 313.

The originating exchange 301 has all the existing functions in the mobile communication network. In addition, the originating exchange 301 receives a response to the location registration request from the home location register 309, and then calls to form a call with a single additional service device 307 for providing the additional service according to the present invention. And sending a call connection request signal to the exchange 303.

The destination exchange 303 has all of the existing functions in the mobile communication network. In addition, after receiving the call connection request signal from the originating exchange 301 in order to provide the additional service according to the present invention, it further includes a function for transmitting a call connection request signal to the home exchange 305.

The home switch 305 has all the functions of the switch in the existing mobile communication network. The home exchange 305 means the only exchange to which the additional service subscriber according to the present invention belongs. When the subscriber moves to another area with the terminal, the location of the originating exchange and the destination exchange may change, whereas the position of the home exchange 305 does not change. In addition, the home exchange 305 further includes a function of receiving a call connection request signal from the destination exchange 303 to provide an additional service according to the present invention, and transmitting a call connection request signal to a single additional service device. .

The single supplementary service device 307 refers to a unified device for providing ring back tone replacement sound service and voice mailbox service. The single supplementary service apparatus 307 provides both the existing ringback tone replacement sound service and the voice mailbox service. In addition, the single supplementary service apparatus 307 receives a call connection request signal from the home exchange 305 to provide the supplementary service according to the present invention, and sends a corresponding call connection request response signal to the home exchange 305. It further includes a function for transmitting.

The additional service providing method according to an exemplary embodiment of the present invention will be described with reference to the above configuration as follows. First, when the caller requests a telephone call with the called terminal 313 using the calling terminal 311, the calling switch 301 determines the location of the called terminal and then requests a call connection with the called exchange 303. At this time, the destination exchange 303 requests the call connection with the destination terminal 313, using the information of the additional service according to the present invention to which the called party is subscribed to the home exchange 305. That is, the destination exchange 303 performs call routing to the home exchange 305 using the Mobile Identification Number (MIN) of the destination terminal 313. The call routing includes information for providing an additional service according to the present invention in addition to the MIN of the called terminal 313. The home exchange 305 receiving the call routing request attempts to connect the ISUP call to the single supplementary service device 307 connected thereto. When the ISUP call connection is completed up to the single supplementary service apparatus 307, the single supplementary service apparatus 307 is based on information for providing MIN and supplementary services of the called terminal, ringback tone replacement tone service and voice mailbox service. Provide at least one additional service.

4 is a flowchart illustrating providing an additional service according to an exemplary embodiment of the present invention.

Referring to FIG. 4, first, a caller requests a phone call with a called terminal by using a calling terminal (step 401). The terminating exchange then determines whether the terminating terminal is in a disabled state (step 403). The incapable state includes a case where the called terminal is busy, a case where the power of the called terminal is turned on, and an unconditional voice mail connection. If it is determined that the called terminal cannot talk, step 405 is executed. If it is determined that the called terminal is available for calling, step 407 is executed. In step 405, a single supplementary service apparatus provides a voice mail service to the calling terminal.

In step 407, the single supplementary service apparatus replaces the ring back tone to the calling terminal and transmits the sound source set by the called party. Thereafter, when the called party answers a call by inputting a call button of the called terminal or by opening a flip of the terminal, step 409 is performed. If the called terminal does not answer the call or cannot make a call, step 405 is performed. . In step 411, the single supplementary service apparatus stops sending ringback tone replacement tones and the caller and the called party carry out the normal call.

5 is a signal flow diagram illustrating a procedure for providing a voice mail service in a state in which a called terminal is in a disabled state according to an exemplary embodiment of the present invention.

Referring to Fig. 5, the originating exchange sends a LocReq (Location Request) to query the home location register for the location of the called terminal (step 501). After determining the location of the called terminal, the home location register sends a query response (locReq) to the originating exchange in response to the received LocReq (step 503). The query response may include information for routing to the destination exchange and the home exchange to provide a voice mail service because the destination terminal is in a disabled state. The incapable call state includes a case where the called terminal is busy, a case where the power of the called terminal is turned on, and a case where the call terminal is unconditionally connected to the voice mailbox.

The originating exchange sends an IAM (Initial Address Message) to the destination exchange using the returned query response (locReq) (step 505). The terminating exchange returns an Address Complete Message (ACM) to the originating exchange in response to the IAM received from the originating exchange (step 507). The destination exchange then sends an IAM to the home exchange (step 509). At this time, the IAM includes information for providing the MIN and voice mail service of the called terminal.

The home exchange sends an IAM corresponding to the IAM received from the destination exchange to a single supplementary service device to request a call connection (step 511). The single supplementary service apparatus sends the ACM to the home exchange in response to the call connection request (step 513). In response to the ACM received from the single supplementary service apparatus, the home exchange sends an ACM to the destination exchange (step 515).

Further, the single supplementary service apparatus sends an Answer Message (ANM) to the home exchange in response to the call connection request (step 517), and the ANM is sent to the destination exchange (step 519). When the called exchange sends the ANM to the calling exchange corresponding to the ANM received from the home exchange (step 521), a call path is formed between the calling terminal and a single supplementary service device. The single supplementary service apparatus provides a voice mail service to a calling terminal using the call path based on the information for connecting to the MIN and voice mail service of the called terminal (step 523).

Thereafter, when the calling terminal completes the voice mail service, the calling exchange transmits a REL (Release) for terminating the call path to the called exchange (step 525), and the called exchange delivers the REL to the home exchange (step 525). 527, the home exchange forwards the REL to a single supplementary service device (step 529). The single supplementary service device sends a Release Complete (RLC) to the home exchange in response to the REL (step 531), the home exchange delivers the RLC to the destination exchange (step 533), and the destination exchange exchanges the originating exchange. Deliver the RLC. Through this process, the call path between the single supplementary service apparatus and the calling terminal is disconnected.

6 is a signal flow diagram illustrating a procedure for providing a voice mail service in a state in which a called terminal is in a disabled state according to another exemplary embodiment of the present invention.

Referring to FIG. 6, the originating exchange sends a LocReq (Location Request) for querying the location of the called terminal to the home location register (step 601). The home location register returns a query response (locReq) to the originating exchange in response to the received LocReq (step 603). The query response includes information for routing to the home exchange to provide a voice mail service because the called terminal is in a disabled state. The incapable state includes a case where power is turned on and a case where a voice mail connection is unconditionally established. The originating exchange sends an IAM to the home exchange based on the information (step 605). The IAM includes information for providing a MIN and a voice mail service of a called terminal. The home exchange sends an ACM to the originating exchange in response to the IAM (step 607).

The home exchange sends an IAM corresponding to the IAM received from the originating exchange to a single supplementary service device to request a call connection (step 609). The single supplementary service apparatus sends the ACM to the home exchange in response to the call connection request (step 611). Then, the single supplementary service apparatus sends the ANM to the home exchange (step 615), and the home exchange sends the ANM to the originating exchange corresponding to the ANM (step 617).

A call path is formed between the calling terminal and the single supplementary service device through the above process, and the single supplementary service device is based on the information for providing the MIN and voice mail service of the called terminal using the call path. Provide a voice mail service (step 619).

Thereafter, when the calling terminal completes the voice mail service, the calling exchange transmits a REL (Release) to the home exchange to disconnect the call path (step 621), and the home exchange delivers the REL to a single supplementary service device. (Step 623). The single supplementary service device sends a Release Complete (RLC) to the home exchange in step 625 in response to the REL, and the home exchange transfers the RLC to an originating exchange (step 627). Through this process, the call path between the single supplementary service apparatus and the calling terminal is disconnected.

7 is a signal flowchart illustrating a procedure for providing an additional service in a callable state by a called terminal according to another preferred embodiment of the present invention.

Referring to FIG. 7, the originating exchange sends a LocReq (Location Request) to query the home location register for the location of the called terminal (step 701). After determining the location of the called terminal, the home location register sends a query response (locReq) to the originating exchange in response to the received LocReq (step 703).

The originating exchange sends an IAM (Initial Address Message) to the destination exchange using the returned query response (locReq) (step 705). The terminating exchange sends an Address Complete Message (ACM) to the originating exchange in response to the IAM received from the originating exchange (step 707). The destination exchange then sends an IAM to the home exchange (step 709). In this case, the IAM includes the MIN of the called terminal and information for providing an additional service according to the present invention.

The home exchange sends an IAM corresponding to the IAM received from the destination exchange to a single supplementary service device to request a call connection (step 711). The single supplementary service apparatus sends the ACM to the home exchange in response to the call connection request (step 713). In response to the ACM received from the single supplementary service apparatus, the home exchange sends an ACM to the destination exchange (step 715).

In addition, the single supplementary service apparatus sends an Answer Message (ANM) to the home exchange in response to the call connection request (step 717), and the ANM is sent to the destination exchange (step 719). When the destination exchange sends the ANM to the originating exchange corresponding to the ANM received from the home exchange (step 721), a call path is formed between the originating terminal and the single supplementary service device. The single additional service device transmits the sound source set by the called party to the calling terminal by replacing the ringback tone based on the MIN of the called terminal and the information for providing the additional service (step 723).

Then, the called exchange sends a REL to the home exchange to disconnect the call path between the called exchange and the single supplementary service device when the called terminal responds to the incoming call (step 725), and the home exchange is the single supplementary service device. The REL is forwarded to (step 727). The single supplementary service apparatus sends an RLC to the home exchange in response to the REL received from the home exchange (step 729), which forwards the RLC to the destination exchange (step 731). Through this process, the call path between the destination exchange and the single supplementary service device is disconnected. Thereafter, in step 733, a normal call is performed between the calling terminal and the called terminal.

8 is a signal flow diagram illustrating a procedure for providing an additional service when a called terminal does not respond according to another exemplary embodiment of the present invention.

Referring to FIG. 8, steps 801 to 823 are the same as steps 701 to 723 of FIG. 7, and description thereof will be omitted. In step 825, when the called terminal does not answer for a predetermined time or the called terminal becomes incapable of calling, the called exchange requests the voice mail service switching request to a single supplementary service device (step 827). The single supplementary service apparatus stops transmitting a ringback tone replacement sound to a calling terminal in response to the voice mailbox service switch request, and provides a voice mailbox service (step 829). Since steps 831 to 841 are the same as steps 525 to 535 of FIG. 5, description thereof is omitted.

9 is a diagram schematically illustrating a regional distributed structure of a single additional service device according to an embodiment of the present invention.

Referring to FIG. 9, the regional decentralized structure of a single supplementary service apparatus includes a switch 901, a single supplementary service apparatus 307, a home location register 309, and a central database 903. Each exchange 901 is coupled to each other via No. 7 network 905, and a single additional service device 307 is connected to the corresponding exchange respectively. Subscriber information including the ringback tone replacement tone selected by the subscriber is stored in a single additional service device 307 to which the subscriber belongs. In addition, information about a subscriber may be separately stored in the central database 903 for redundancy that flexibly copes with a failure of the single additional service device 307. When the supplementary service according to the present invention is performed, the subscriber information stored in the central database 903 is simply used for backup purposes, and in practice, the subscriber information stored in the single supplementary service apparatus 307 to which the subscriber belongs is used. Through this configuration, it is possible to provide a real-time additional service to the service subscriber. In addition, each single supplementary service device 307 can ensure the quality of service by managing and servicing the database only at the subscriber limit accommodated.

And by assigning to a specific single additional service device 307 for each subscriber, when the number of subscribers increases in the future, after registering the new single additional service device 307 to accommodate it, the information on the home switch of the new subscriber is returned to the home location. It may be stored in the register 309 or the like. Through this configuration, it is possible to accommodate a large number of new subscribers without major changes in the system, and even if the subscriber moves to the region, it is possible to provide additional services only through the home exchanger designated for each subscriber and a single additional service device 307 connected thereto. . In other words, there is no need to increase the capacity of the database indefinitely.

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

According to the present invention, by using a single supplementary service device, it is possible to provide a ringback tone replacement service and a voice mail supplementary service to a caller, thereby reducing costs by reducing the number and type of supplementary service equipment.

According to the present invention, when combined with the destination exchange, it is possible to unify the local signaling point of the supplementary equipment for the ringback tone replacement sound service and the voice mailbox service, thereby reducing the signaling point which is a high cost network resource.

According to the present invention, by connecting a single additional service device to each home exchange divided by subscriber, there is an advantage that can significantly reduce the capacity of the database.

1A and 1B are diagrams schematically showing a configuration for providing a voice mailbox service and a ringback tone replacement tone service according to the prior art;

2 is a signal flow diagram in a mobile communication network for providing a ring back tone replacement sound service according to the prior art.

3 is a diagram illustrating a configuration of an apparatus for providing an additional service according to an exemplary embodiment of the present invention.

4 is a flow chart for providing an additional service according to an embodiment of the present invention.

5 is a signal flow diagram illustrating a procedure for providing a voice mail service in a state in which a called terminal is in an incapable state according to an exemplary embodiment of the present invention.

6 is a signal flow diagram illustrating a procedure for providing a voice mail service in a state in which a called terminal is in a disabled state according to another exemplary embodiment of the present invention.

7 is a signal flow diagram illustrating a procedure for providing an additional service in a callable state by a called terminal according to another preferred embodiment of the present invention.

8 is a signal flow diagram illustrating a procedure for providing an additional service when a called terminal does not respond according to another exemplary embodiment of the present invention.

9 is a diagram schematically illustrating a regional distributed structure of a single supplementary service device according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

301: outgoing exchange 301: incoming exchange

305: home exchange 307: a single additional service device

311: calling terminal 313: called terminal

309: Home Location Register

Claims (8)

A method for providing an additional service by a single additional service device in a home exchange that is combined with an originating exchange corresponding to an originating terminal, a destination exchange corresponding to an originating terminal, and a single additional service device, Receiving a call connection request from the destination exchange, wherein the call connection request corresponds to a call connection request received by the destination exchange from the originating exchange; Sending a call connection request to the single supplementary service device in response to the call connection request; Receiving a call connection request response corresponding to the call connection request from the single supplementary service apparatus; And Transmitting a call connection request response corresponding to the call connection request response to the destination exchange. Including, The terminating exchange transmits a call connection request response to the originating exchange in response to the call connection request response to form a call path between the single supplementary service apparatus and the calling terminal, and the single supplementary service apparatus establishes a call path. Providing an additional service including at least one of a ringback tone replacement tone service and a voice mail service Method of providing an additional service by a single additional service device, characterized in that. The method of claim 1, If the called terminal responds to the call connection request, receiving a disconnect request from the called exchange by a call; Sending a call disconnect request to the single supplementary service device in response to the call disconnect request; Receiving a call disconnection request response from the single supplementary service device corresponding to the call disconnection request; And Sending a disconnect request response to the destination exchange corresponding to the disconnect request response to the call; Include more, Disconnection of the call path between the single supplementary service device and the destination exchange by the call disconnection request; Method of providing an additional service by a single additional service device, characterized in that. The method according to claim 1 or 2, The destination exchange determines whether the destination terminal subscribes to an additional service, and if the destination terminal subscribes to an additional service, routing to the home exchange when the destination terminal subscribes to an additional service. Method of providing an additional service by a single additional service device, characterized in that. Claims [1] A method for providing supplementary services in a single supplementary service device in combination with an originating exchange corresponding to an originating terminal, a destination exchange corresponding to an originating terminal and a home exchange, Receiving a call connection request from the home exchange, wherein the call connection request corresponds to a call connection request sent by the destination exchange to the home exchange in response to a call connection request received from the originating exchange; Sending a call connection request response corresponding to the call connection request to the home exchange, wherein the home exchange sends a call connection request response corresponding to the call connection request response to a destination exchange, and the terminating exchange exchanges the call. Send a call connection request response to the originating exchange in response to a connection request response; And Providing an additional service including at least one of a ringback tone replacement tone service and a voice mailbox service using a call path with the caller terminal formed by the call connection request response; Method of providing an additional service by a single additional service device comprising a. In the outgoing exchange corresponding to the originating terminal, the incoming exchange corresponding to the terminating terminal and the home exchanger used to provide the supplementary service in combination with a single supplementary service device, Means for receiving a call connection request from the terminating exchange, wherein the call connection request corresponds to a call connection request received by the terminating exchange from the originating exchange; Means for sending a call connection request to the single supplementary service device in response to the call connection request; Means for receiving a call connection request response corresponding to the call connection request from the single supplementary service apparatus; And Means for sending a call connection request response corresponding to the call connection request response to the destination exchange Including, The terminating exchange transmits a call connection request response to the originating exchange in response to the call connection request response to form a call path between the single supplementary service apparatus and the calling terminal, and the single supplementary service apparatus establishes a call path. Providing an additional service including at least one of a ringback tone replacement tone service and a voice mail service Home exchanger characterized in that. A single supplementary service apparatus for providing an additional service in combination with an originating exchange corresponding to an originating terminal, a destination exchange corresponding to an originating terminal, and a home exchange, Means for receiving a call connection request from the home exchange, wherein the call connection request corresponds to a call connection request sent by the destination exchange to the home exchange in response to a call connection request received from the originating exchange; Means for sending a call connection request response corresponding to the call connection request to the home exchange, wherein the home exchange sends a call connection request response corresponding to the call connection request response to a destination exchange, and the terminating exchange exchanges the call. Send a call connection request response to the originating exchange in response to a connection request response; And Means for providing an additional service including at least one of a ringback tone replacement tone service and a voice mailbox service using a call path with the calling terminal formed by the call connection request response; Single added service device comprising a. In the outgoing exchange corresponding to the originating terminal, the destination exchange corresponding to the terminating terminal, and the home exchanger providing the additional service in combination with a single supplementary service device, A memory in which a program is stored; A processor coupled to the memory to execute the program; The processor by the program, Receive a call connection request from the destination exchange, wherein the call connection request corresponds to a call connection request received by the destination exchange from the originating exchange; and to the single supplementary service apparatus in response to the call connection request. Send a call connection request, receive a call connection request response corresponding to the call connection request from the single additional service apparatus, and send a call connection request response corresponding to the call connection request response to a destination exchange, wherein the destination exchange Transmits a call connection request response to the originating exchange in response to the call connection request response to form a call path between the single supplementary service apparatus and the calling terminal, and the single supplementary service apparatus uses the call path to ring Additional including at least one of a backtone replacement tone service and a voice mailbox service To provide services Home exchanger characterized in that. A single supplementary service apparatus for providing an additional service in combination with an originating exchange corresponding to an originating terminal, a destination exchange corresponding to an originating terminal, and a home exchange, A memory in which a program is stored; A processor coupled to the memory to execute the program; The processor by the program, Receive a call connection request from the home exchange, wherein the call connection request corresponds to a call connection request sent by the destination exchange to the home exchange in response to a call connection request received from the originating exchange; Sends a call connection request response corresponding to the call connection request to the home exchange, where the home exchange sends a call connection request response corresponding to the call connection request response to the destination exchange, and the destination exchange requests the call connection request. Sending a call connection request response to the originating exchange in response to the response, comprising at least one of a ringback tone replacement tone service and a voice mailbox service using a call path with the originating terminal formed by the call connection request response; Providing additional services Single added service device comprising a.