KR100589670B1 - A method for providing additional signaling service of internet telephony and a system thereof - Google Patents

Abstract

The present invention relates to a system and method for registering a media file produced by a user as ring back tone information to provide a ringback tone according to a taste of a called party to a caller's communication terminal.

According to a preferred embodiment of the present invention, a method for providing a ring back tone includes: maintaining storage means for recording one or more ring back tone information; Receiving an INVITE message from a communication terminal of a predetermined sender; Transmitting a ringing message and the ring back tone information recorded in the storage means in correspondence with the received invite message to the caller's communication terminal; And accessing a predetermined media server, reproducing a ringback tone corresponding to the ring back tone information, and transmitting the ringback tone to the caller's communication terminal.

In the ringback tone providing method according to the present invention, a ringback tone suitable for a user's taste can be transmitted to a caller's communication terminal by creating a unique ringback tone according to a user's personality and registering the ring back tone information.

Ring back tone, ring back tone, SIP

Description

Method for providing signaling supplementary service of Internet telephony and system therefor {A METHOD FOR PROVIDING ADDITIONAL SIGNALING SERVICE OF INTERNET TELEPHONY AND A SYSTEM THEREOF}

1 is a flowchart illustrating a method for establishing and releasing a call in a general communication terminal.

2 is a schematic configuration diagram of a SIP network to which the present invention is applied.

3 is a schematic structural diagram of a system for providing a ring back tone according to the present invention.

4 is a flowchart illustrating a method for providing a ring back tone according to an embodiment of the present invention.

5 is a diagram illustrating a format of a conventional ring message.

6 illustrates a format of a ring message according to the present invention.

7 is a flowchart illustrating a method for providing a ring back tone according to another embodiment of the present invention.

8 is an internal block diagram of a general purpose computer system that may be employed in a method and system for providing a ring back tone to a communication terminal in accordance with the present invention.

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

10, 210: communication terminal of caller 20, 220: communication terminal of called party

230: IP network 240: media server

250: proxy server 260: ringback information database

300: call connection sound providing system 310: interface unit

320: application unit 330: access unit

610: Contents type and a part for specifying a delimiter for distinguishing content

620: part indicating the contents length of the message

630: part of the boundary specified in 610 to separate content

640: a part that sets the content type of the newly added part

650: portion indicating information that can access the ring back tone

The present invention relates to a signaling additional service providing method and a system for providing a virtual private network-based Internet telephony, and more particularly, a method for providing a ringback tone to a corresponding communication terminal by registering a ringback tone produced by a user as ring back tone information; It's about that system.

In the conventional method of receiving a ring back tone, a user receives a ring back tone provided by a telecommunication company or pays a certain amount of fees to a ring back tone service provider who provides a ring back tone service, and selects a ring back tone to be provided. To provide the selected ringback tone to the communication terminal.

However, the conventional ringback tone providing method does not satisfy the needs of various users because the user should select only the ringback tone provided by the carrier or the ringback tone service provider.

The present invention has been made in order to improve the prior art as described above, in order to meet the needs of various users to create a ringback tone that the user wants to register the ring back tone information ringback tone registered with the caller's communication terminal It is an object of the present invention to provide a method and system.

It is another object of the present invention to provide a method for playing a ringback tone registered in a caller's communication terminal by registering a call ring tone desired by the user in the form of a media file and registering it in the media server.

It is still another object of the present invention to provide a method in which a ringback tone registered in a media server is transmitted to a caller's communication terminal according to the ring back tone information in a proxy server when a user registers the desired ring back tone information in advance in a media server. will be.

Still another object of the present invention is to register a call ring tone that a user desires as a media file in a media server, and then connect to the corresponding media server with an address included in the call ring tone information received from the caller's communication terminal to correspond to the call ring tone. It provides a method to play the ring back tone downloaded from the media server.

In order to achieve the above object and to solve the problems of the prior art, the present invention comprises the steps of: maintaining storage means for recording one or more ring tone information; Receiving an INVITE message from a communication terminal of a predetermined sender; Transmitting a ringing message and the ring back tone information recorded in the storage means in correspondence with the received invite message to the caller's communication terminal; And accessing a predetermined media server, reproducing a ringback tone corresponding to the ring back tone information, and transmitting the ring back tone to the caller's communication terminal.

The method for providing a ring back tone to a communication terminal according to an aspect of the present invention comprises the steps of: receiving an INVITE message from a communication terminal of a predetermined caller and transmitting the received invite message to a communication terminal of the called party; Receiving a ringing message from the communication terminal of the called party; Checking the ring back tone information set by the user of the called party by searching a predetermined ring back tone information database, and transmitting the ring back tone information and the ring message to the caller's communication terminal; And an identifier of a user including the called party, and information corresponding to the ring back tone set by the user; And accessing a predetermined media server, reproducing a ringback tone corresponding to the ring back tone information, and transmitting the ringback tone to the caller's communication terminal.

According to another aspect of the invention, the interface unit for transmitting and receiving data with a predetermined caller communication terminal or a predetermined receiver communication terminal; The call setup request information of the caller including the called party's identifier received through the interface unit is analyzed, and ringback tone or ring back tone data corresponding to the called party's identifier is referred to with reference to a predetermined ring back tone information database. An application unit for transmitting to a communication terminal, wherein the ring back tone information database records an identifier of a user including a caller and a called party and ring back tone or the ring back tone data set by the user; And an access unit for accessing a predetermined media server to send a ringback tone corresponding to the ring back tone information to the caller's communication terminal, the media server providing a predetermined ring back tone. Is provided.

As used herein, a communication terminal includes a predetermined communication module such as a PDA (Personal Digital Assistant), a handheld PC, a mobile phone, a computer, an Internet phone, and the like, and mounts a predetermined microprocessor. The concept encompasses all capable communication terminals.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a flowchart illustrating a method for setting up and releasing a call between a caller's communication terminal and a called party's communication terminal in a general SIP communication network.

Referring to FIG. 1, in step 110, the caller's communication terminal 10 transmits an INVITE message to the called party's communication terminal 20 when a user (sender) attempts to make a call. The called party's communication terminal 20 may accept, reject, or forward the received invite message. In step 120, the called party's communication terminal 20 accepts the received invite message and transmits additional information to the calling party's communication terminal 10 through a ring message as shown in FIG. send.

In step 130, the called party's communication terminal 20 listens to the ring from which the called party is sent, and if so, transmits an OK message to the caller's communication terminal 10. In step 140, the caller's communication terminal 10 transmits an ACK message to the called party's communication terminal 20 in response to the received OK message.

In step 150, a call path between the caller's communication terminal 10 and the called party's communication terminal 20 is connected to transmit and receive a media stream between the caller's communication terminal 10 and the called party's communication terminal 20. This is done.

In step 160, the called party's communication terminal 20 transmits a BYE message to the caller's communication terminal 10 when the user (called party) ends the call. In step 170, the caller's communication terminal 10 transmits an OK message to the called party's communication terminal 20 in response to the received BY message.

In general, the basic function of the Session Initiation Protocol (SIP) is to establish a call between voice over Internet Protocol (VoIP) terminals capable of voice communication, such as a computer, an Internet phone, a PDA, and a mobile phone, as shown in FIG. This call setup function is not different from the call setup function of the H.323 protocol of ITU-T. SIP is designed after the text-based Simple Mail Transfer Protocol (SMTP) and Hyper Text Transfer Protocol (HTTP), and is a client / server architecture in which the server responds to the call when the client initiates the call. It is based. SIP has the advantage of easy troubleshooting and network debugging by following these existing text-based Internet standards. In addition, SIP is easier to implement than ITU-T's H.323 protocol and has the advantage of being compatible with other services because it is an Internet standard. In particular, SIP is designed to be included as a component of all Internet terminals, all application services, and all network equipment to perform functions such as call setup, call management, and application service requests.

Although SIP was developed as a call establishment protocol for VoIP, it is expected to perform core functions in the next-generation communication network because it is easy to implement and compatible with other services. The next generation network structure or next generation service structure will be developed in the form of a converged network that integrates the network based on the Internet and a converged service that provides all application services in the converged network. If the current circuit network is gradually replaced by the Internet, the circuit switch will be replaced with a switch suitable for the Internet. The service structure provided by the circuit network will be replaced by a service structure suitable for the Internet. As a result, the characteristics of next-generation network structure or next-generation service structure are modularized so that the current hardware-oriented exchange structure having all exchange functions in one system can be managed in software form, and each module can communicate through standard API. It will be in the form of a soft switch, which will greatly improve scalability and flexibility. The user does not use the service provided by the service provider unilaterally, but instead creates a service of his or her desired form using the web or the graphical user interface (GUI) and stores it in the service provider's server to request a call arriving at the user. You will be provided with.

2 is a schematic configuration diagram of a SIP network to which the present invention is applied and includes a caller's communication terminal 210, a caller's communication terminal 220, an IP network 230, a media server 240, and a proxy server 250. , The ring back tone information database 260.

Referring to FIG. 2, the caller's communication terminal 210 receives a ringback tone from the media server 240 connected through the IP network 230. The called party's communication terminal 220 stores a media file, such as mp3, wav, wmv, etc., encoded by the user in BASE64 format, in a predetermined storage means, or stores the encoded media file as ring back tone information. Register with the media server 250. IP network 230 is a communication network for transmitting and receiving messages or data between the communication terminal 210 of the caller, the communication terminal 220 of the called party, the media server 240, the proxy server 250, the ring back tone information database 260 to be. IP network 230 supports one or more IP-based protocols including HTTP, SIP, WAP or SMTP. The media server 240 stores a media file corresponding to a ringback tone registered by a user and plays the stored media file in ringback tones as shown in FIGS. 4 and 7. To 210). If the caller's communication terminal 210 includes a media file playback function, the caller may download and play a ringback tone media file corresponding to the ring back tone information from the media server 240. The proxy server 250 receives a message transmitted from the caller's communication terminal 210 or the called party's communication terminal 220 as shown in FIG. 7, and transmits the received message to the caller's communication terminal 210. Or transmits to the communication terminal 220 of the called party. The ring back tone information database 260 records ring back tone information registered by the user through the communication terminal 220 of the called party. The ring back tone information database 260 records ring identifiers and ring back tone data set in the user as identifiers of the user including the caller and the called party as the ring back tone information.

3 is a block diagram illustrating a schematic configuration of a system for providing a ring back tone according to the present invention.

Referring to FIG. 3, a system 300 for providing a ring back tone to a communication terminal according to an exemplary embodiment of the present invention may include an interface unit 310, an application unit 320, and an access unit 330. Can be.

The interface unit 310 performs an operation of interfacing data transmitted and received between the caller's communication terminal 210 and the called party's communication terminal 220. The interface unit 310 receives an invite message from the caller's communication terminal 210 and transmits the received invite message to the called party's communication terminal 220. When the interface unit 310 receives a ring message from the called party's communication terminal 220, the interface unit 310 transmits the received ring message to the caller's communication terminal 220. The interface unit 310 supports one or more IP-based protocols including HTTP, SIP, WAP or SMTP.

The application unit 320 analyzes the call setup request information of the caller including the identifier of the communication terminal 220 of the called party through the interface unit 310, and refers to the called party's identifier with reference to a ring back tone information database 260. Transmit ring back tone or ring back tone data corresponding to the caller's communication terminal 210. The identifier may include a general telephone number, a mobile identification number (MIN), a cellular telephone number (CTN), an international mobile station identity (IMSI), and a session initiation protocol (SIP) address. Or one or more of the email addresses.

The access unit 330 accesses the media server 240 to transmit a ringback tone corresponding to the ring back tone information to the caller's communication terminal 220. Here, the media server 240 stores the ringback tone registered in advance by the user, and transmits the ringback tone corresponding to the ring back tone information to the caller's communication terminal 220.

4 is a flowchart illustrating a method for providing a ring back tone according to an embodiment of the present invention, which illustrates a method in which a user (called party) adds direct ring back tone information to a caller's communication terminal.

In step 410, the caller's communication terminal 210 transmits an invite message to the called party's communication terminal 220 when there is a call attempt from the user. In step 420, the called party's communication terminal 220 transmits the ring message and the ring back tone information as shown in FIG. 6 to the caller's communication terminal 210 in response to the received invite message. The ring back tone information includes media files such as mp3, wav, wmv, etc., encoded in BASE64 format by the user. In addition, the ring back tone information may be a multimedia streaming format or a universal resource locator of the media server 240 in which the ring back tone is stored.

Referring to FIG. 6, the ring message according to an embodiment of the present invention needs to add content to the existing ring message shown in FIG. 5, so that a part or a plurality of contents set for a plurality of contents are distinguished. A part for specifying a delimiter (610), a part for displaying the contents-length information plus the length of the inserted content in addition to the length of an existing message (620), and distinguishing between contents And at least one of a portion 630 indicating boundary information, a portion 640 for setting type information of the content of the newly added portion, and a portion 650 for recording information for accessing the ring back tone. . The ring message consists of a header and a body. The header contains information related to the control, and the body contains information related to the session. The ring back tone information according to the present invention is added to the body portion. Since the body is composed of MIME (Multipurpose Internet Mail Extensions) format, the body content type is set in a multi-part format among MIME formats. When constructing the body, if you put the existing SDP in the first part and add the ring back tone information in the second part, you must set the MIME Content-Type (for example, application / music-call) appropriately. The content of the information added to the second part may be, for example, a multimedia streaming format such as mms: // host / location or a universal resource locator such as http: // server / filename. have. The ring back tone information may include a media file such as wav, mp3, wmv, etc., encoded in the BASE64 format.

In operation 430, the media server 240 retrieves the ring back tone information received from the called party's communication terminal 220 and transmits a ringback tone corresponding to the ring back tone information to the caller's communication terminal 210. When the caller's communication terminal 210 includes a function of playing a media file, the caller's communication terminal 210 connects to the media server 240 according to the multimedia string format or URL address included in the received RBT information, and from the media server 240. According to the user's information included in the ring back tone information, the media file corresponding to the ringback tone registered by the user may be downloaded and directly played.

In step 440, the called party's communication terminal 220 transmits an OK message to the caller's communication terminal 210, and in step 450, the caller's communication terminal 210 responds with an ACK in response. ) Transmits the message to the called party's communication terminal 220.

In step 460, a call path between the caller's communication terminal 210 and the called party's communication terminal 220 is formed, and a media stream according to the call between the caller's communication terminal 210 and the called party's communication terminal 220 is provided. Stream) transmission and reception is performed.

In step 470, the called party's communication terminal 220 sends a BYE message to the caller's communication terminal 210 to terminate the call, and in step 480 the caller's communication terminal 210 is In response, an OK message is transmitted to the called party's communication terminal 220.

7 is a flowchart illustrating a method for providing a ring back tone according to another embodiment of the present invention. The ring back tone information database 260 is searched through the proxy server 250 to provide a ring back tone.

2 and 7, in step 710, the caller's communication terminal 210 transmits an INVITE message to the proxy server 250 via the IP network 230 when the user attempts to make a call. do. In operation 715, the proxy server 250 transmits the received invite message to the called party's communication terminal 220 through the IP network 230.

In operation 720, the called party's communication terminal 220 transmits a ringing message to the proxy server 250 through the IP network 230.

In step 730, the proxy server 250 searches for the ring back tone information database 260 connected through the IP network 230 using the identifier information of the user included in the received ring message, and in step 735. The ring back tone information corresponding to the identifier information of the user is transmitted from the ring back tone information database 260.

In step 740, the proxy server 250 transmits the ring message and the ring back tone information to the caller's communication terminal 210 through the IP network 230. In step 745, the caller's communication terminal 210 accesses the media server 240 according to the received ring back tone information and receives a ringback tone corresponding to the ring back tone information. The caller's communication terminal 240 connects to the media server 240 corresponding to the multimedia streaming format or the URL of the universal resource locator to the ring back tone information, and the corresponding ring back tone from the media server 240. Receives and sends ringback tone corresponding to information. In addition, the caller's communication terminal 210 may directly play the media file when the received ring back tone information includes a media file of wav, mp3, wmv format encoded in BASE64 format.

In step 750, the called party's communication terminal 220 transmits an OK message to the proxy server 250 via the IP network 230 when the user (called party) wants to talk to the caller. The proxy server 250 transmits the received OK message to the caller's communication terminal 210 through the IP network 230.

In step 760, the caller's communication terminal 210 transmits an ACK message to the proxy server 250 through the IP network 230 in response to the received OK message, and in step 765 the proxy server ( 250 transmits the received Ack message to the called party's communication terminal 220 through the IP network 230.

In step 770, a call path between the caller's communication terminal 210 and the called party's communication terminal 220 is formed, and transmission and reception of a media stream according to the call is performed through the formed call path.

In step 780, when the called party's communication terminal 220 is requested to terminate the call from the user (the called party), the corresponding BYE message is transmitted to the proxy server 250 through the IP network 230, In operation 785, the proxy server 250 transmits the received message to the caller's communication terminal 210 through the IP network 230.

In step 790, the caller's communication terminal 210 transmits an OK message to the proxy server 250 through the IP network 230 in response to the received BY message, and in step 795, the proxy server ( 250 transmits the received OK message to the communication terminal 220 of the called party through the IP network (230).

Embodiments of the invention include a computer readable medium containing program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

8 is an internal block diagram of a general purpose computer system that may be employed in a method and system for providing a ring back tone to a communication terminal in accordance with the present invention.

General purpose computer system 800 includes one or more processes 810 connected to main memory including random access memory (RAM) 820 and read only memory (ROM) 830. Process 810 may also be called a central processing unit (CPU). As is well known in the art, the ROM 830 serves to transfer data and instructions to the CPU unidirectionally, and the RAM 820 typically transfers data and instructions bidirectionally. Used to. RAM 820 and ROM 830 may include any suitable form of computer readable media. Mass storage 840 is bidirectionally coupled to process 810 to provide additional data storage capability and may be any of the computer readable recording media described above. The mass storage device 840 is used to store programs, data, and the like, and is a secondary memory device such as a hard disk which is generally slower than the main memory device. Certain mass storage devices such as CD ROM 860 may be used. Process 810 may include one or more input / output interfaces, such as a video monitor, trackball, mouse, keyboard, microphone, touchscreen display, card reader, magnetic or paper tape reader, voice or handwriting reader, joystick, or other known computer input / output device. 850 is connected. Finally, process 810 may be connected to a wired or wireless communication network through network interface 870. Through this network connection, the procedure of the method described above can be performed. The apparatus and tools described above are well known to those skilled in the computer hardware and software arts.

The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention.

Although the above-described method and system for providing a predetermined ringback tone to a communication terminal according to the present invention have been described with reference to the embodiment through an IP network, those skilled in the art to which the present invention pertains have code division multiple access (CDMA: Code). In addition to providing a service through a mobile communication network using a Division Multiple Access (WDDMA) method or a Wide Code Division Multiple Access (WCDMA) method, a wireless communication network or a wired or wireless network based on IEEE802.11b or the like. It is obvious that the service can be provided through the Internet.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

According to the present invention, a user can directly create a unique ringback tone according to his or her personality and register it as ring back tone information to provide a ringback tone registered with the caller's communication terminal.

In addition, according to the present invention, the user registers the desired ring back tone media file to the media server so that the caller's communication terminal can access the media server through the ring back tone information and download and play the registered ringback tone.                     

According to the present invention, the ring back tone registered in the media server may be transmitted to the caller's communication terminal by retrieving the ring tone information from the proxy server through the database according to the ring tone information previously registered in the media server by the user. have.

In addition, according to the present invention, the user registers the desired ring back tone to the media server in the form of a media file, and then accesses the corresponding media server with the address included in the ring back tone information received from the caller's communication terminal to correspond to the ring back tone. You can download the ring back tone from the server.

Claims (10)

A method of providing a ring back tone in a predetermined communication terminal, Maintaining storage means for recording one or more ring back tone information in a communication terminal of a predetermined called party; Receiving an INVITE message from a communication terminal of a predetermined caller at the communication terminal of the called party; And Transmitting a ringing message and the ring back tone information recorded in the storage means to the caller's communication terminal in response to the received invite message at the called party's communication terminal; Including, The communication terminal of the caller, The ringback tone corresponding to the ring back tone information may be directly played or the ring back tone corresponding to the ring back tone information is received from the media server and transmitted according to the type of the ring back tone information. To provide a ring back tone. The method of claim 1, And the ring back tone information is a media file having any one of mp3, wmv, and wav formats. In the method for providing a ring back tone to a predetermined communication terminal, Receiving an INVITE message from a communication terminal of a predetermined caller at a proxy server, and transmitting the received invite message to a communication terminal of a corresponding called party; Receiving a ringing message from the communication terminal of the called party at the proxy server; And Search the ring back tone information database for recording the call ring tone information set by the user and the ring back tone information set by the user in the proxy server to confirm the ring back tone information set by the called party's user, and to read the ring back tone information and the ring message. Transmitting to the caller's communication terminal Including, The communication terminal of the caller, The ringback tone corresponding to the ring back tone information is directly played or the ring back tone corresponding to the ring back tone information is received from the media server in connection with a predetermined media server according to the ring back tone information. How to provide ring tone. The method according to claim 1 or 3, And the ring back tone information is a multimedia streaming format or a universal resource locator of the media server in which the ring back tone is stored. The method according to claim 1 or 3, The ring message may include one of a delimiter for distinguishing contents of a ring back tone, length information of contents of the ring back tone, type information of contents of the ring back tone, or information for accessing the ring back tone. Method for providing a ring back tone comprising the above. The method of claim 3, The user's identifier may include a general telephone number, a mobile identification number (MIN), a cellular telephone number (CTN), an international mobile station identity (IMSI), and a session initiation protocol. 1) an address and an e-mail address. A computer-readable recording medium having recorded thereon a program executable on a computer for executing the method according to any one of claims 1 to 3. A system for providing a predetermined ring back tone to a communication terminal, An interface unit for interfacing the transmission / reception data between the communication terminal of the predetermined caller and the communication terminal of the called party; And The ring back tone or ring back tone data corresponding to the called party's identifier information received through the interface unit is referred to with reference to a ring back tone information database that records the identifier of the user and the ring back tone or ring back tone data corresponding to the identifier of the user. Application unit for transmitting to the caller's communication terminal Including, The communication terminal of the caller, When the ringback tone is transmitted from the application unit, the ringback tone is directly reproduced or when the ring back tone data is transmitted from the application unit, the ring back tone is connected to a predetermined media server to correspond to the ring back tone data from the media server. Call back tone providing system, characterized in that for receiving and transmitting the ring back tone. The method of claim 8, The interface unit provides a ring back tone providing system, characterized in that for supporting one or more IP-based protocol, including HTTP, SIP, WAP or SMTP. The method of claim 8, The ring back tone data is, And a multimedia streaming format or a universal resource locator of the media server in which the ring back tone is stored.

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