KR101165044B1 - System and method for providing call related sound source - Google Patents

Abstract

The present invention relates to a system and method for providing a call-related sound source, which is provided during a call connection, when a call-related sound source such as a tone or a announcement is transmitted to a calling terminal each time a call-related event such as a call failure or a call end occurs. The purpose is to reduce the consumption of wired and wireless network resources. According to the present invention, after the calling terminal stores or temporarily stores the call-related sound sources in advance, when a call-related event occurs, the sound source providing server transmits only the code for the sound source to the calling terminal through a control channel or an overhead channel to play the sound source. In this way, it is possible to reduce the consumption of wired and wireless network resources such as a traffic channel for delivering a call-related sound source to the calling terminal each time. In addition, since the calling terminal reproduces the pre-stored or temporarily stored sound source, it is possible to guarantee the playback quality of the sound source as compared to playing the sound source downloaded through the traffic channel every time.

Sound source, tone, announcement, ringback tone, coloring

Description

System and method for providing call-related sound source {SYSTEM AND METHOD FOR PROVIDING CALL RELATED SOUND SOURCE}

The present invention relates to a technology for providing a call-related sound source, and more particularly, a call-related sound source such as various tones or announcements to be reproduced when a call-related event such as a call failure, call termination, etc. occurs during a call connection. Providing a call-related sound source that can save wired / wireless network resources such as traffic channels by pre-storing or temporarily storing and delivering only the code corresponding to the event to the calling terminal when a call-related event occurs and playing the sound source corresponding to the code. System and method.

As is widely known, when a caller attempts to make a call, a ringback tone is provided to the caller to indicate that the call is waiting, and various tones or announcements to notify the caller of the situation in case of a call failure or a burst of traffic are provided. Sound source of is provided.

The ringback tone has a simple form in which a predetermined sound is repeated periodically. Recently, a service is provided in which a specific waiting sound designated by the called party, for example, a music or a pop, is played on the caller's terminal. . This service varies depending on the mobile operator, but is commonly used as a 'coloring'.

In order to transmit call-related sound including various tones and announcements to the calling terminal, the wired / wireless traffic channel should be released after each allocation for about 2 to 10 seconds per subscriber. It can be easily guessed that the amount of network resources used in the mobile communication network will be very large.

In addition, due to the characteristics of the mobile communication network, sometimes the playback quality is not uniform, such as instantaneous disconnection during playback due to transmission error or instability of the wireless channel in the process of transmitting the call-related sound source to the calling terminal.

The present invention has been made in view of the above problems, and an object of the present invention is to prevent the sound source to be played in the calling terminal every time when a call-related event occurs to save wired and wireless network resources such as traffic channels for sound transmission It is for.

Another object of the present invention is to ensure the playback quality of the sound source is reproduced in the calling terminal.

In order to achieve this technical problem, the present invention discloses a call-related sound source providing system and method.

The call-related sound source providing system according to the present invention includes a calling terminal, a call control server and a sound source providing server. The call control server controls the call processing with the originating terminal. The sound source providing server stores call-related sound sources and codes corresponding to the sound sources, receives a sound source download request signal from the calling terminal through the call control server, and transmits the sound sources to the calling terminal. The code corresponding to the call related event with the calling terminal is transmitted to the calling terminal. At this time, the calling terminal stores the received sound sources and plays a sound source corresponding to the received code among the stored sound sources.

In the sound source providing system according to the present invention, the call control server transmits the code to the calling terminal through a control channel or an overhead channel.

The call-related sound source providing server according to the present invention comprises a sound source database, a transceiver and a controller. The sound source database stores call-related sound sources and codes corresponding to the sound sources, respectively. The transmitter / receiver receives a request from a calling terminal and transmits a sound source or a code of the sound source database. The control unit receives the sound source download request signal from the calling terminal, transmits the sound sources to the calling terminal, and transmits the code corresponding to the call related event with the calling terminal to the calling terminal, corresponding to the code. Play the sound source stored in the calling terminal.

In the sound source providing server according to the present invention, the call-related event is any one of a call connection, a call connection failure, and a call termination.

In the sound source providing server according to the present invention, the sound source includes at least one of a tone, a guidement, and content.

In a method for providing a call-related sound source according to the present invention, a sound source providing server, which stores call-related sound sources and codes corresponding to the sound sources, receives a sound source download request signal from a caller terminal and sends the sound source to the caller terminal. A storing process for transmitting and storing the call and an event related to a call with the caller terminal, the sound source providing server transmits the code corresponding to the event to the caller terminal so that the caller terminal receives the received code from among the stored sound sources. And a reproducing process for reproducing a sound source corresponding to the code.

In the sound source providing method according to the present invention, the step of transmitting the code in the playback process to the calling terminal, when receiving a call connection request from the calling terminal, the sound source providing server corresponding to the call connection request Transmitting a ringback tone code to the calling terminal; and if the call connection for the call connection request fails, the sound source providing server transmitting a call congestion code or a howling code to the calling terminal according to the call connection failure. And when the call is abnormally terminated after the call connection according to the call connection request, the sound source providing server includes transmitting a call congestion code or a howling code according to the call connection failure to the calling terminal.

On the other hand, the present invention also provides a call-related sound source providing system comprising a calling terminal, a call control server and a sound source providing server. The calling terminal temporarily stores a coloring sound source and a coloring code of the called terminal. The call control server controls the call processing with the originating terminal. The sound source providing server stores a coloring sound source and a coloring code of the called terminal, receives a call connection request of the calling terminal through the call control server, and transmits a coloring code of the called terminal to the calling terminal. Play the coloring sound source temporarily stored in the calling terminal.

In the sound source providing system according to the present invention, the calling terminal temporarily stores a coloring sound source and a coloring code of the called terminal received through the call control server for a predetermined time.

Meanwhile, the present invention also provides a call-related sound source providing server including a sound source database, a transceiver, and a controller. The sound source database stores the coloring sound source and the coloring code of the called terminal. The transceiver transmits a coloring sound source or a coloring code of the sound source database according to a call connection request of a calling terminal that temporarily stores a coloring sound source and a coloring code of the called terminal. The control unit receives the call connection request of the calling terminal and transmits the coloring code of the called terminal to the calling terminal to reproduce the coloring sound source temporarily stored in the calling terminal.

In the sound source providing server according to the present invention, the control unit receives a call connection request of the calling terminal within a time for temporarily storing a coloring sound source and a coloring code of the called terminal.

In the sound source providing server according to the present invention, the controller connects to the calling terminal with a control channel or an overhead channel during the time that the coloring sound source temporarily stored in the calling terminal is played.

In the sound source providing server according to the present invention, the control unit receives a total storage time of the temporarily stored coloring sound source from the calling terminal, and when the reproduction time of the temporarily stored coloring sound source passes the total storage time, the traffic channel Through the remaining portion of the coloring sound source is transmitted to the calling terminal.

On the other hand, the present invention, the sound source providing server receives the call connection request of the calling terminal which temporarily stores the coloring sound source and the coloring code of the called terminal, and the sound source providing server to the calling terminal the coloring of the called terminal It provides a call-related sound source providing method comprising a playback process for transmitting a code to play the coloring sound source temporarily stored in the calling terminal.

According to the present invention, since the calling terminal downloads the call-related sound source from the sound source providing server and stores or temporarily stores the call-related sound source in advance, and reproduces the sound source corresponding to the code received from the call control server when a call-related event occurs, traffic for sound transmission There is an effect of saving wired and wireless network resources such as channels.

In addition, since a sound source pre-stored or temporarily stored in the caller terminal is reproduced, it is possible to ensure the playback quality of the sound source as compared to playing the sound source downloaded through the traffic channel every time.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. In the meantime, in the case where it is determined that the detailed description of the well-known function and the configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the terms used herein are merely explanatory terms selected to effectively convey the technical idea of the present invention. Therefore, each term should be interpreted comprehensively based on the contents throughout the specification. In addition, in describing the embodiments related to the present invention, it should be noted that the same name and reference numerals are assigned to the components of similar functions.

In the description according to the present embodiment, the called and calling terminal is a terminal that can be connected to the sound source providing server through a communication network, and is a mobile communication terminal, a wired communication terminal, a personal computer (PC), and a desktop computer. , Digital broadcast receivers such as notebooks, Internet Protocol TeleVision (IPTV), Personal Digital Assistant (PDA), Portable Multimedia Player (PMP), Digital Multimedia Broadcasting (DMB), or Digital Video Broadcasting (DVB).

The communication network includes a mobile communication network, a wired communication network, a wireless broadband network (WiBro), a high-speed downlink packet access (HSDPA) network, a satellite communication network, an IP network, and an all-IP network.

1 is a view showing a schematic configuration of a call-related sound source providing system according to a first embodiment of the present invention. FIG. 2 is a diagram illustrating a detailed configuration of a sound source providing server of FIG. 1.

1 and 2, the call-related sound source providing system 100 of the first embodiment includes a sound source providing server 10, an outgoing call control server 20, and an incoming call control server connected via a communication network 50. 30), the home location registration server 40, the calling terminal 60 and the called terminal 70.

The communication network 50 is a call between the sound source providing server 10, the outgoing call control server 20, the incoming call control server 30, the home location registration server 40, the calling terminal 60 and the called terminal 70 Performs a series of data transmission and reception operations for connection. The communication network 50 may be an IP network centered on IP providing a transmission / reception service of a large amount of data and a seamless data service. In addition, the IP network may be an All-IP network, which is an IP network structure integrating different networks based on the Internet protocol.

The sound source providing server 10 stores call-related sound sources and codes corresponding to the sound sources, respectively, and transmits a sound source or a code through the call control server 20 according to a request of the caller terminal 60. 60).

The outgoing call control server 20 and the incoming call control server 30 are connected to a plurality of base station controllers (not shown) to perform a call exchange, and perform bidirectional data communication between the originating terminal 60 and the called terminal 70. Support. In addition, the call control server 20, 30 is a mobile communication protocol processing, mobile communication protocol processing, handover control between base station controllers, interworking between other mobile networks, network synchronization, including additional service processing for the mobile subscribers, that is, users of the terminal (60, 70) It is responsible for self-operation / maintenance / repair, visiting subscriber registration, billing, channel management and allocation. For reference, in the present specification, the call control servers 20 and 30 are divided into 'send' and 'incoming', but this is only a convenience classification for convenience of description.

The call control servers 20 and 30 are parts in charge of functions related to call and session processing, and may be one of a call state control function (CSCF) or a mobile switching center (MSC). In particular, the call control server 20, 30 implemented in CSCF performs a function as a gateway for incoming calls, a call control function, a SPD (Serving Profile Database) function, an address processing function.

The home location registration server 40 is a master database of subscribers, and serves to track access means by maintaining a master list of services related to the subscriber or managing the location information of the subscriber. In particular, the home location registration server 40 performs an authentication function for providing an additional service to the terminal (60, 70) connected to the communication network (50). The home location registration server 40 may be one of a home location register (HLR) or a home subscriber server (HSS) that manages subscriber information in an All-IP network.

In particular, the sound source providing server 10 includes a sound source database 12 (sound source DB), a transceiver 14 and a controller 16.

The sound source DB 12 stores and manages call-related sound sources and codes corresponding to the sound sources, respectively. The sound source DB 12 includes a tone sound source DB 12a for storing tone or multimedia tone content in detail and a guidement sound source DB 12b for storing guidement or multimedia guidement content.

Call-related sound sources include tones, announcements and content. Tones include ring back tones (RBT), busy tones, congestion tones, howling tones, and the like. Announcements are various announcements provided during call setup, including, for example, busy and congestion announcements. Call-related sound sources may be stored with the code so that they can be identified from each other. The content is image-based multimedia content related to the tone and announcements, and includes multimedia tone content and multimedia announcement content. The multimedia tone content includes an image played with the tone. The multimedia announcement content includes an image played along with the announcement.

In particular, the multimedia information content is a multimedia content that can be provided during the video call, the content that is played in the calling terminal 60 when an event related to the video call occurs. In addition, the codes may be understood as an index for identifying each of the sound sources, and each code may be organized in a table format and provided by the calling call control server 20 for reference.

The transceiver 14 receives the request of the calling terminal 60 and transmits a sound source or code of the sound source DB 12 to the calling terminal 60. At this time, the request of the calling terminal 60 includes a sound source download request, a call connection request, a call termination request, and the like.

In addition, the controller 16 performs an overall control operation of the sound source providing server 10. That is, the controller 16 receives the sound source download request signal from the caller terminal 60 and transmits the sound sources to the caller terminal 60. The controller 16 transmits a code according to a call-related event with the calling terminal 60 to the calling terminal 60 to reproduce a sound source stored in the calling terminal 60 corresponding to the code.

On the other hand, the calling terminal 60 transmits a sound source download request signal to the sound source providing server 10 through the call control server 20, and downloads the call-related sound sources from the sound source providing server 10 through the traffic channel in advance. Save it. In this state, when the calling terminal 60 makes a call connection request (or call request) to the calling call control server 20, the home location registration server 40 inquires the location and information of the called terminal 70, The call setup request to the incoming call control server (30).

After the call setup request is made to the incoming call control server 30, the originating call control server 20 transmits a code corresponding to the event through a control channel or an overhead channel instead of a traffic channel when a call-related event occurs. 60, and the calling terminal 60 plays back the pre-stored sound source corresponding to this code.

An example of a code transmitted to the calling terminal 60 when a call related event occurs can be summarized as follows.

1. Ringback tone (RBT) code, if the calling terminal makes a call connection request

2. Busy tone code or busy announcement code when called party's terminal is busy

3. A call congestion code (call congestion code) or howling tone code if the call terminates abnormally after a call connection failure or call setup is completed.

For reference, the examples of the above-listed codes are provided only for better understanding of the present invention, and the present invention is not limited to the above-described lists.

As described above, in the sound source providing system 100 according to the first embodiment, the calling terminal 60 downloads the call-related sound source from the sound source providing server 10 and stores it in advance, and when the call-related event occurs, the call control server 20 Since the sound source corresponding to the code received from the user is reproduced, it is possible to save wired and wireless network resources such as a traffic channel for transmitting the sound source. In addition, since the originating terminal 60 reproduces the pre-downloaded sound source, it is possible to ensure the playback quality of the sound source as compared with the conventional playback of the sound source downloaded through the traffic channel every time.

A method of providing a call-related sound source according to the first embodiment will be described with reference to FIGS. 1 to 3 as follows. 3 is a flowchart illustrating a call-related sound source providing method according to a first embodiment of the present invention.

In step S101, the calling terminal 60 accesses the sound source providing server 10 through the communication network 50 in advance and downloads and stores the call-related sound sources and codes corresponding to each of the sound sources.

Next, when the sound source providing server 10 receives a call connection request from the calling terminal 60 through the calling call control server 20 in step S103, the home location registration server through the calling call control server 20 in step S105. In step 140, the location and information of the called terminal 20 are inquired.

The sound source providing server 10 receiving the location and information queried through the outgoing call control server 20 makes a call setup request to the corresponding call control server 30 in step S107, and then the calling terminal 60 in step S109. Transmit a ringback tone code. In step S109, the ringback tone code is transmitted through a control channel or an overhead channel rather than a traffic channel. In other words, there is no need to allocate a traffic channel for ringback tone code transmission.

The calling terminal 60 receiving the ringback tone code in step S111 reproduces the sound source corresponding to the ringback tone code among the sound sources previously downloaded in step S101.

Next, in step S113, the sound source providing server 10 determines whether a response message is received from the incoming call control server 30 through the outgoing call control server 20. If the response message is not received as a result of the determination in step S113, in step S115 the sound source providing server 10 transmits a busy tone code or busy guidance code to the calling terminal 60 through the outgoing call control server 20. The originating terminal 60 receiving the code in step S115 reproduces the sound source (busy tone or busy announcement) corresponding to the code among the previously downloaded sound sources.

Subsequently, in step S117, the sound source providing server 10 determines whether abnormal termination occurs while the above call setting is made through the outgoing call control server 20. If the abnormal termination does not occur as a result of the determination in step S117, the sound source providing server 10 performs the step S113 again through the outgoing call control server 20.

If abnormal termination occurs as a result of the determination in S117 process, the sound source providing server 10 transmits the call congestion tone code or howling tone code to the caller terminal 60 through the call control server 20 in step S129. To be played.

On the other hand, when the response message is received as a result of the determination in step S113, the outgoing call control server 20 and the incoming call control server 30 in step S123 to establish a traffic channel between the calling terminal 60 and the called terminal 70 for the call; Assigns and allows the call to be made through the assigned traffic channel.

In step S125, the sound source providing server 10 determines whether abnormal termination occurs during the call through the outgoing call control server 20. If abnormal termination occurs as a result of the determination in step S125, the sound source providing server 10, the originating call control server 20 releases the assigned traffic channel in step S127. Then, the sound source providing server 10 transmits the call congestion tone code or howling tone code in step S129 to the call terminal 60 through the call control server 20 so that the corresponding sound source is reproduced.

So far, examples of transmitting a code (business tone code, announcement code, call congestion tone code, howling tone code) when a call-related event occurs and playing a corresponding sound source have been described with reference to FIGS. As shown in FIG. 1, it is noted that the events (S113, S117, S125) in which the code is transmitted are only a few examples.

The feature of the first embodiment described above is that only a code at the time of occurrence of a call-related event is transmitted to the calling terminal 60 while the sound sources are stored in the calling terminal 60 in advance. Conventionally, since a sound source such as a tone and a guidement is transmitted to the calling terminal each time, the traffic channel has been consumed as much, and the traffic channel for transmitting the sound source has to be frequently allocated and released.

However, according to the first embodiment, only the sound source code for the sound source code, not the sound source itself, is transmitted to the calling terminal 60 through the overhead channel or the control channel, and the sound source previously stored in the calling terminal 60 is reproduced. It can be seen that the load on the traffic channel is greatly reduced.

Meanwhile, the first embodiment discloses an example in which a tone sound source or a guidement sound source is transmitted as a call-related sound source, but is not limited thereto. For example, as illustrated in FIG. 4, a coloring sound source may be transmitted to a call-related sound source.

Hereinafter, a call-related sound source providing system and method according to a second embodiment will be described with reference to FIGS. 4 to 6.

The sound source providing system 200 according to the second embodiment relates to a system for providing a coloring (CRBT: ColoRing Back Tone) service, as shown in FIGS. 4 and 5, and provides a coloring sound source or a coloring code. It is configured to include a sound source providing server 110.

The calling terminal 160 temporarily stores the received coloring sound source and code in the buffer memory for a predetermined time. If the recall is not performed within a predetermined time, the calling terminal 160 deletes the temporarily stored coloring sound source and code from the buffer memory.

When the sound source providing server 110 receives a recall connection request of the calling terminal 160 through the calling call control server 120, the sound source providing server 110 transmits a coloring code of the called terminal 170 to the calling terminal 160. The calling terminal 160 plays the temporarily stored coloring sound source corresponding to the received coloring code. In this case, the sound source providing server 110 is connected to the caller terminal 160 through a control channel or an overhead channel during the time that the coloring sound source temporarily stored in the caller terminal 160 is reproduced. The sound source providing server 110 receives the total storage time of the temporarily stored coloring sound source from the calling terminal 160, and when the reproduction time of the temporarily stored coloring sound source has passed the total storage time, the rest of the coloring sound source through the traffic channel. Send to the calling terminal 160.

In particular, the sound source providing server 110 according to the second embodiment is configured to include a sound source DB 112, the transceiver 114 and the controller 116.

The sound source DB 112 includes a coloring sound source DB 112a. The coloring sound source DB 112a stores and manages the coloring sound source of the called party and the coloring code so that each coloring sound source can be identified from each other. Meanwhile, in the second embodiment, the sound source DB 112 includes only the coloring sound source DB 112a, but the present invention is not limited thereto. That is, the sound source DB 112 may further include the tone sound source DB or the announcement sound source DB according to the first embodiment.

The transceiver 114 receives the request of the calling terminal 160 and transmits the coloring sound source or coloring code of the sound source DB 112 to the calling terminal 160. At this time, the request of the calling terminal 160 includes a call connection request, a call termination request, and the like. In particular, the transceiver 114 receives a call connection request from the calling terminal 160 that temporarily stores the coloring sound source and coloring code of the called terminal 170.

The controller 116 receives the call connection request of the calling terminal 160 and transmits the coloring code of the called terminal 170 to the calling terminal 160 to reproduce the coloring sound source temporarily stored in the calling terminal 170. That is, the controller 116 responds to the call connection request of the calling terminal 160, and when the called terminal 170 is subscribed to the coloring service, the calling call control server sends the corresponding coloring sound source and the coloring code of the sound source DB 112. Transmit to the calling terminal 160 through 120. The calling terminal 160 temporarily stores the received coloring sound source and code and reproduces the coloring sound source. When the controller 116 receives the re-call request from the calling terminal 160 within a predetermined time after the call ends, the controller 116 transmits a coloring code of the called terminal 170 to the calling terminal 160. The calling terminal 160 plays the temporarily stored coloring sound source corresponding to the received coloring code. At this time, the controller 116 transmits the coloring code to the calling terminal 160 through the control channel or the overhead channel.

Meanwhile, the calling terminal 160 transmits the total storage time of the temporarily stored coloring sound source to the control unit 116 through the control channel or the overhead channel. The controller 116 transmits the remaining portion of the coloring sound source to the calling terminal 160 through the traffic channel when the playback time of the temporarily stored coloring sound source has passed the received total storage time.

A method for providing a call-related sound source according to the second embodiment will be described with reference to FIGS. 4 to 6 as follows. 6 is a flowchart illustrating a call-related sound source providing method according to a second embodiment of the present invention.

If the sound source providing server 110 receives a call connection request from the calling terminal 160 through the calling call control server 120 in step S201, the location of the called terminal 170 to the home location registration server 140 in step S203. And whether the coloring service is set. In step S205, the sound source providing server 110 requests a call setup to the incoming call control server 130 through the outgoing call control server 120, as well as the coloring sound source of the called terminal 170 stored in the sound source DB 112; The code is transmitted to the calling terminal 160 through the traffic channel.

In step S207, the calling terminal 160 temporarily stores the coloring sound source and the coloring code received from the outgoing call control server 120 and reproduces the coloring sound source. Here, the calling terminal 160 temporarily stores the received coloring sound source and code in the buffer memory for a predetermined time. If the recall is not performed within a predetermined time, the calling terminal 160 deletes the temporarily stored coloring sound source and code from the buffer memory.

After the above processes are performed, a case in which the calling terminal 160 makes a re-call request in step S209 may occur. For example, when the call is terminated before the call setup with the destination terminal 170 and the call is requested again, or when the call is abnormally terminated after the call setup is made, the call is requested again.

When the calling terminal 160 makes a re-call connection request to the calling call control server 120 in step S209, the calling call control server 120 sends the coloring code of the called terminal 170 from the sound source providing server 110 to the calling terminal. Transmit to 160. In this case, the coloring code is transmitted through a control channel or an overhead channel rather than a traffic channel.

Subsequently, in step S211, the calling terminal 160 plays the temporarily stored coloring sound source corresponding to the coloring code and transmits the total storage time of the temporarily stored coloring sound source to the sound source providing server 110 through the calling call control server 120. send. In this case, the total storage time may be understood as the length of the coloring sound source temporarily stored in step S207.

Next, the sound source providing server 110 makes a call connection request to the incoming call control server 130 as described above through the outgoing call control server 120, until the response message is received from the incoming call control server 130. Wait In step S213, the sound source providing server 110 determines whether the storage time received from the originating terminal 160 has elapsed while waiting.

If the storage time has elapsed as a result of the determination in step S213, in step S215, the outgoing call control server 120 allocates a traffic channel between the calling terminal 160 and the sound source providing server 110 and the corresponding coloring from the sound source providing server 110. The rest of the sound source is received and transmitted to the calling terminal 160.

As described above, according to the sound source providing method according to the second embodiment, when a recall request is made within a predetermined time, the sound source providing server 110 transmits only a coloring code through a control channel or an overhead channel to the calling terminal 160. The temporarily stored coloring sound source is to be reproduced, and the rest of the coloring sound source is assigned to a traffic channel and transmitted to the calling terminal 160. That is, by preventing the called party's coloring sound source from being transmitted again through the traffic channel from the beginning, it is possible to reduce the load on the traffic channel due to the transmission of the coloring sound source. In addition, since the originating terminal 160 reproduces the temporarily stored coloring sound source, the playback quality of the sound source can be guaranteed as compared with playing the coloring sound source downloaded through the traffic channel every time as in the prior art.

As described above, the present specification and drawings have been described with respect to preferred embodiments of the present invention, although specific terms have been used, these are merely used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention. It is not intended to limit the scope of the invention. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

According to the present invention, after storing or temporarily storing the call-related sound sources in advance in the calling terminal, since only the code for the sound source is transmitted to the calling terminal, waste of wired and wireless network resources due to traffic channel allocation can be suppressed. . In addition, since a sound source pre-stored or temporarily stored in the caller terminal is reproduced, it is possible to ensure the playback quality of the sound source as compared to playing the sound source downloaded through the traffic channel every time.

1 is a view showing a schematic configuration of a call-related sound source providing system according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a detailed configuration of a sound source providing server of FIG. 1.

3 is a flowchart illustrating a call-related sound source providing method according to a first embodiment of the present invention.

4 is a view showing a schematic configuration of a call-related sound source providing system according to a second embodiment of the present invention.

FIG. 5 is a diagram illustrating a detailed configuration of a sound source providing server of FIG. 4.

6 is a flowchart illustrating a call-related sound source providing method according to a second embodiment of the present invention.

** Description of the main parts of the drawing **

10, 110: sound source server 12, 112: sound source DB

14, 114: transceiver 16, 116: controller

20, 120: outgoing call control server 30, 130: incoming call control server

40, 140: home location register 50, 150: communication network

60, 160: calling terminal 70, 170: called terminal

100, 200: sound source providing system

Claims (14)

A calling terminal; A call control server for controlling call processing with the originating terminal; Stores call-related sound sources and codes corresponding to the sound sources, receives a sound source download request signal from the originating terminal through the call control server, and transmits the sound sources to the calling terminal, and transmits the sound sources to the calling terminal. And a sound source providing server for transmitting the code corresponding to the call related event to the calling terminal. And the calling terminal stores the received sound sources and reproduces a sound source corresponding to the received code among the stored sound sources. The method of claim 1, And the call control server transmits the code to the calling terminal through a control channel or an overhead channel. A sound source database for storing call-related sound sources and codes corresponding to the sound sources; A transceiver for receiving a request from a calling terminal and transmitting a sound source or a code of the sound source database; Receiving a sound source download request signal from the calling terminal and transmitting the sound sources to the calling terminal, and transmitting the code according to a call-related event with the calling terminal to the calling terminal and stored in the calling terminal corresponding to the code. Call-related sound source providing server comprising a; control unit for reproducing a sound source. The method of claim 3, The call-related event is a call-related sound source server, characterized in that any one of the call connection, call connection failure, call termination. 5. The method of claim 4, The sound source is a call-related sound source providing server, characterized in that at least one of the tone, announcements, content. A sound source providing server storing call-related sound sources and codes corresponding to the sound sources, the storing process of receiving a sound source download request signal from a calling terminal and transmitting and storing the sound sources to the calling terminal; When a call related event occurs with the calling terminal, the sound source providing server transmits the code corresponding to the event to the calling terminal so that the calling terminal plays a sound source corresponding to the received code among the stored sound sources. A playback-related sound source providing method comprising a; playback process. The method of claim 6, wherein the transmitting of the code in the playing process to the calling terminal comprises: Receiving a call connection request from the calling terminal, and the sound source providing server transmitting a ringback tone code corresponding to the call connecting request to the calling terminal; Transmitting a call congestion code or a howling code according to the call connection failure to the calling terminal when the call connection to the call connection request fails; And when the call is abnormally terminated after the call connection according to the call connection request, the sound source providing server transmitting a call congestion code or howling code according to the call connection failure to the calling terminal. How to provide call-related sound source. A calling terminal that temporarily stores a coloring sound source and a coloring code of the called terminal; A call control server for controlling call processing with the originating terminal; Coloring sound source and coloring code of the called terminal is stored, and receives the call connection request of the calling terminal through the call control server and transmits the coloring code of the called terminal to the calling terminal temporarily stored in the calling terminal Sound source providing server for reproducing the sound source; call-related sound source providing system comprising a. The method of claim 8, wherein the calling terminal, Call-related sound source providing system, characterized in that for temporarily storing a coloring sound source and a coloring code of the called terminal received through the call control server. A sound source database storing a coloring sound source and a coloring code of a called terminal; A transmitting / receiving unit which transmits a coloring sound source or a coloring code of the sound source database according to a call connection request of a calling terminal that temporarily stores a coloring sound source and a coloring code of the called terminal; And a control unit for receiving a call connection request of the calling terminal and transmitting a coloring code of the called terminal to the calling terminal to reproduce a coloring sound source temporarily stored in the calling terminal. The method of claim 10, wherein the control unit, Call-related sound source providing server, characterized in that for receiving the call connection request of the calling terminal in the time of temporarily storing the coloring sound source and the coloring code of the called terminal. The method of claim 11, wherein the control unit, Call-related sound source providing server, characterized in that for connecting to the control terminal or an overhead channel with the calling terminal during the time that the coloring sound source temporarily stored in the calling terminal. The method of claim 12, wherein the control unit, Receiving the total storage time of the temporarily stored coloring sound source from the calling terminal, and when the reproduction time of the temporarily stored coloring sound source has passed the total storage time, the remaining portion of the coloring sound source through the traffic channel to the calling terminal Call-related sound source providing server, characterized in that for transmitting. The sound source providing server includes a receiving process of receiving a call connection request from a calling terminal that temporarily stores a coloring sound source and a coloring code of a called terminal; And a reproduction process of transmitting the coloring code of the called terminal to the calling terminal and reproducing the coloring sound source temporarily stored in the calling terminal.

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