KR100657634B1 - Method, Device and Record Medium saved the method for provide voice communication service by using receiver information formed characters - Google Patents

Abstract

The present invention relates to a voice call service, and more particularly, to a method, apparatus, and a recording medium for providing a voice call service using text as callee information. According to an embodiment of the present invention, a method of providing a voice call service at an exchange of a mobile communication network to a calling terminal that transmits called party information for a voice call connection in a text format includes receiving the called party information from a base station corresponding to the calling terminal. Receiving a call request message comprising a; In response to recognizing that the called party information is a text, transmitting a called number request message including the text to a combined number management device through a communication network; Receiving a called number corresponding to the text from the number management device; And establishing a call between the called terminal and the calling terminal corresponding to the called number. Therefore, there is an effect of providing a voice call service providing method, apparatus, and a recording medium thereof, through the called party information in a text format capable of performing a voice call, by inputting the called number into text.

Exchange, Number, Handset, Number, Voice Call

Description

Method, device and record medium saved the method for provide voice communication service by using receiver information formed characters}

1 is a block diagram schematically illustrating an entire system for providing a voice call service through callee information in a text format according to an embodiment of the present invention.

2 is a diagram illustrating a voice call using a text message as a called party information in a calling terminal according to an exemplary embodiment of the present invention.

Figure 3 is a functional block diagram showing the configuration according to the function of the calling terminal according to an embodiment of the present invention.

Figure 4a is a diagram showing the use of the format of the recipient information in the form of a number conventionally used as the recipient information of the base station and the switching period according to an embodiment of the present invention.

4B is a diagram illustrating a format of called party information in a base station and an exchange period according to another preferred embodiment of the present invention.

4c is a diagram illustrating a character type table capable of recognizing a character type according to an exemplary embodiment of the present invention.

5 is a diagram showing the configuration according to the function of the originating exchange in accordance with the preferred embodiment of the present invention.

Figure 6a is a block diagram showing the configuration according to the function of the number management device according to an embodiment of the present invention.

6B is a diagram illustrating a called number table stored in a number management device according to an embodiment of the present invention.

7 is a view showing an operation procedure of a method for providing a voice call service through callee information in a text format according to an embodiment of the present invention.

8 illustrates an operation procedure of an originating exchange according to an embodiment of the present invention.

9 is a diagram illustrating a procedure of performing a voice call according to an embodiment of the present invention by inputting and transmitting text as callee information.

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

10: calling terminal

20, 25: base station

30: calling exchange

35: called exchange

50: location register

70: number management device

90: called terminal

The present invention relates to a voice call service, and more particularly, to a method, apparatus, and a recording medium for providing a voice call service using text as callee information.

The existing communication network for voice calls uses only the number of the called party information in the recipient information. Therefore, in order to perform a voice call through a mobile phone, a PCS, a PDA, and a telephone, a numeric telephone number (called number) of the called party must be input.

A list method of directly inputting a phone number or selecting one of phone numbers stored in an address book stored in a terminal is used. In the case of directly inputting a telephone number, there is an inconvenience of remembering a telephone number or checking a notebook, a business card, and the like. In addition, even when using the address book, if a user's terminal is changed, it is inconvenient to enter a new phone number in a new terminal or to download address book information from a previous terminal through a separate device and store it in a new terminal.

Accordingly, the present invention has been made to solve the above-described problem, a method, apparatus for providing a voice call service through the caller information in the form of a text that can perform a voice call by entering the destination number as a letter and the recording thereof The purpose is to provide a medium.

Another object of the present invention is to provide a voice call service method, an apparatus and a recording medium thereof, which do not remember a telephone number and which may provide convenience to a user by using characters that are easily stored by the user even if they are not stored in the terminal. will be.

Still other objects of the present invention will become more apparent through the preferred embodiments described below.

According to a first aspect of the present invention for achieving the above object, in the method for providing a voice call service at the switchboard of the mobile communication network to the calling terminal that has sent the recipient information for the voice call connection in a text format, the calling terminal Receiving a call request message including the called party information from a base station corresponding to; In response to recognizing that the called party information is a text, transmitting a called number request message including the text to a combined number management device through a communication network; Receiving a called number corresponding to the text from the number management device; And establishing a call between a called terminal corresponding to the called number and the calling terminal, and providing a voice call service through callee information in a text format.

Here, the called party information may further include a number type parameter, and may recognize that the called party information is a text through a preset value of the number type parameter, receive a preset identifier together with the called party information, and receive the identifier. It is also possible to recognize that the called party information is a text.

In addition, the called party information may be KSC5601 format or ASCII format.

According to a second aspect of the present invention for achieving the above object, a method for providing a voice call service in a terminal, comprising: receiving a text; Receiving a call request; Generating called party information corresponding to the text; Provided is a method for providing a voice call service through a recipient type information in a text form comprising transmitting a call request message including the called party information to a base station and a recording medium storing a program for executing the method.

Here, the called party information may further include a number type parameter, and the exchange receiving the same may recognize that the called party information is a text through a value of the preset number type parameter, and the call request message is a text message. It may also include a preset identifier that can be recognized by the exchange.

The method may further include a step of switching to the character input mode corresponding to the input of the preset identifier. The method may further include displaying the input character.

According to a third aspect of the present invention for achieving the above object, a switch for providing a voice call service to a calling terminal that has transmitted the called party information for a voice call in a text form, the base station corresponding to the calling terminal A receiving unit for receiving a call request message including called party information in a text format; A character recognition unit recognizing that the called party information is a character; A called party number acquiring unit for transmitting a called party number request message including the text to a number management device combined through a communication network and receiving a called number corresponding to the text from the number management device; And a voice call service providing exchange through caller information in a text format including a call setup unit for setting up a call between the called terminal corresponding to the called number and the calling terminal.

The character recognition unit may recognize the character and transmit the called number request message to the number management device corresponding to the recognized character.

According to a fourth aspect of the present invention for achieving the above object, a terminal for providing a voice call service, comprising: an input unit for receiving a text and a call request; A message generator for generating a call request message using the text as called party information according to the call request; And a voice call service providing terminal is provided through the recipient information in the form of a text including a transmitter for transmitting the call request message to the base station.

The display apparatus may further include a display unit configured to display the input character, and may transmit the identification information together so that the exchange receiving the call connection request from the base station may recognize that the called party information is a character.

Hereinafter, a method and apparatus for providing a voice call service through callee information in a text format according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. The same or corresponding components are given the same reference numerals and redundant description thereof will be omitted.

1 is a block diagram schematically illustrating an entire system for providing a voice call service through callee information in a text format according to an embodiment of the present invention.

According to FIG. 1, the entire system for providing a voice call service using text includes a calling terminal 10, a base station 20, 25, a telephone station 22, 27, a calling side exchange 30, and a called side exchange 35. ), The location register 50, the number management device 70 and the destination terminal 90.

The calling terminal 10 is a terminal capable of internet connection such as a wireless communication (LAN) terminal, a Bluetooth terminal, a portable Internet terminal, as well as a mobile communication terminal and a general wired terminal including a PCS, a PDA, a smartphone, and the like. It refers to all terminals capable of voice calls. Hereinafter, a mobile communication terminal will be described as an example, but as described above, all terminals capable of a voice call can be applied in the same manner.

The calling terminal 10 may not only connect the called party information to a general phone number when requesting a voice call, but also transmit the called party information by text according to the voice call service according to the present invention. Make a voice call.

Accordingly, when the caller terminal 10 requests a voice call, in inputting caller information about the caller terminal 90 to call, the caller terminal 10 provides a user interface so that the caller information can be input using not only numbers but also letters.

2 is a diagram illustrating a voice call using a text as caller information in a calling terminal according to an exemplary embodiment of the present invention.

Referring to FIG. 2, when a voice call is made with a person named 'hong gil dong', the terminal 90 and the channel (call) corresponding to the hong gil dong are set according to the input of 'hong gil dong' instead of the terminal number of the hong gil dong. To make a phone call. The called number of the called terminal 90 corresponding to Hong Gil-dong is set in advance and managed by the number management device 70.

Here, the calling terminal 10 may be converted from the numeric input mode to the text input mode according to the input of an arbitrary identifier (for example, *). In addition, it is obvious that the character input mode can be converted by other identifiers such as # or specific function buttons. In addition, the calling terminal 10 recognizes that the called party information is a character rather than a number by the identifier, and generates the called party information accordingly.

In addition, the calling terminal 10 outputs the inputted called party information on the screen. In addition, the characters do not necessarily need to be Korean, and characters of other languages such as English may be input. You can set the Hangul input mode or English input mode, and the characters corresponding to the entered numbers are converted and displayed. In addition, as shown in the figure, it is possible to display the values (symbols and numbers) of all the buttons entered under the characters together, and it is natural that only the characters can be displayed.

3 is a functional block diagram showing the configuration according to the function of the calling terminal according to an embodiment of the present invention.

Referring to FIG. 3, the calling terminal includes an input unit 11 for receiving a text and a call request, a display unit 13 for displaying the input text on a screen, and called party information corresponding to the text according to a call request. Message generation unit 15 for generating a call request message, and a transmission unit 17 for transmitting a call request message to the base station 20.

Here, the called party information includes a number type parameter and a text parameter. That is, according to the above-described input of the identifier, the number type parameter has a value indicating that the called party information is a character, not a number, and the character parameter has a value corresponding to the input character. As a general rule, ASCII characters or KSC5601 may be used. In addition, it is natural that all character formats capable of representing characters as binary values may be used. Alternatively, the type identifier may be separately generated and included in the call request message so that the calling party exchange 30 recognizes that the called party information is a character without using the number type parameter.

Referring back to FIG. 1, the called terminal 90 is a wireless communication terminal including a PCS, a PDA, a smart phone, and the like, as well as a wireless LAN terminal, a Bluetooth terminal, a portable Internet terminal, and the like. As a terminal capable of internet access, it refers to all terminals capable of a voice call. It may also be a voice response terminal of a company or company that provides an automatic voice response service such as ARS. The voice call service according to the present invention may provide a function of retrieving voice information using a call channel, as well as a general voice call, since a text call is performed using text as callee information. That is, when the caller terminal 10 makes a call request including a preset reserved word (for example, reservation, search, schedule, knowledge, etc.) and a search word according to the called party information, the called terminal 90 corresponds to the reserved word. ) And a voice call can be set, and voice information corresponding to a search word can be provided from the called terminal 90 connected to the call.

Upon receiving the call request message from the calling terminal 10, the base station 20 transmits a call connection request message including the called party information to the calling exchange 30. The format of the called party information of the call connection message will be described with reference to FIG. 4.

Figure 4a is a diagram showing the use of the format of the recipient information in the form of a conventionally used as the recipient information of the base station and the exchange period according to an embodiment of the present invention, Figure 4b is another preferred embodiment of the present invention FIG. 4C is a diagram illustrating a format table for recognizing a text format according to an exemplary embodiment of the present invention.

According to FIG. 4A, called party information is typically transmitted in a binary-coded decimal format (BCD) format between systems of a communication network, and called party information is transmitted to an information element identifier, length, number type and number planning identification, and number digit. Contains parameters for The information element identifier indicates the type of information and is defined as the called party information according to a predetermined specific value.

The length parameter has a value for the octet length after the length parameter.

The number type parameter has a value according to the type of number. In general, the type of number may be defined for each value such as 001 for international number, 010 for area code, and 011 for man unique number. The number digit has a binary value for each number. Since it usually has a value of 4 bits, 16 numbers and symbols can be represented.

Recipient information in the character format according to the present invention using the above format defines a specific value (for example, 110) that is not used among the values of the number type parameter, and defines that the recipient information is in a character format rather than a number, and identifies the number plan. The character format (ASCII or KSC5601 format) is defined according to the specific value of. According to the character format defined above, one byte is used for the ASCII format and four number digits for the KSC5601 format (16 bits) to have a value corresponding to one character. Here, in addition to the ASCII format for representing characters in one byte or the KSC5601 format for representing characters in two bytes, all formats capable of representing characters may be equally applied to those skilled in the art. Self-explanatory Therefore, the format of the called party information in the form of a character can be formed by using the called party information format conventionally used.

In addition, the called party information according to Figure 4b is an information element identifier, length, number type. It includes number planning identification, character type, and n character digits. The information element identifier, length, number type and number planning identification are the same as those described above with reference to FIG. 4A, and the character type parameter has a value that the exchange can recognize that the incoming information is in character format, and the information on the format of the character digit is provided. Have As described above, ASCII and KSC5601 may be used as the character format, and the character type parameter may define all formats representing other characters.

Referring to FIG. 4C, the character type according to the character type parameter value may be recognized according to the character type table 400. That is, if the character type parameter has a value of 00000000, the character digit value is recognized as a numeric format. If 00000001, an ASCII format, and if 00000010, a KSC5601 format is recognized. Therefore, the character may be recognized according to the recognized character format. The character type table 400 stores the calling party exchange 30 so as to recognize the corresponding character format and characters of the called party information, and also stores the number management device 70 to recognize the character according to the corresponding character format. can do. In addition to the table type as described above in the character type table 400, it is obvious that all data types capable of recognizing the character type may be equally applied according to each character type parameter value.

Referring again to FIG. 4B, the character digit has a value corresponding to each character using one or a plurality of characters corresponding to a character type corresponding to a value of a character type parameter.

In addition to the above-mentioned format of the called party information, a separate identifier may be used so that the called party exchange 30 may determine the type information through the number type parameter or identification information, and the called party information may be a letter and recognize the letter format. . That is, as the predetermined identifier is included in the called party information, the exchange recognizes the called party information as a letter and the text format of the called party information.

Referring back to FIG. 1, the calling side exchange 30 calls between the called terminal 90 and the calling terminal 10 corresponding to the called party information according to the call connection request message received from the base station 20 or the telephone station 22. Performs a function of setting a call for Here, the calling side exchange includes a wired communication network for relaying communication of a general wired and wireless telephone as well as an exchange of a mobile communication network, and the telephone station 22 has a function of relaying communication between the general wired and wireless telephone and the calling side exchange 30. Perform. That is, the telephone stations 22 and 27 perform a function similar or identical to the base stations 20 and 25 of the mobile communication network. Therefore, the following description will be made in consideration of only a mobile communication network, but the wired communication network may be applied in the same manner through the following description.

Typically, the calling exchange 30 receives the telephone number of the receiving party from the calling terminal 10, and information (location, called party) about the called terminal 90 from the location register 50 corresponding to the receiving telephone number. The side exchange 35, etc.) are acquired and a call with the destination side exchange 35 is established. According to the present invention, the originating exchange 30 receives the actual telephone number of the called terminal 90 through the number management device 70 as it receives a character (also a character string) from the originating terminal 10 instead of the telephone number. Caller ID).

5 is a diagram showing the configuration according to the function of the source-side exchange according to an embodiment of the present invention.

Referring to FIG. 5, the exchange includes a character recognition unit 31, a called number obtaining unit 32, and a call setting unit 33.

The text recognition unit recognizes that the called party information received from the base station 20 is in a text format. If it is not a letter, work with the HLR and the exchange is performed according to the general number translation procedure. Accordingly, the called party number acquiring unit receives the called party number in the numeric format stored in the location register 50 from the number manager 70 by transmitting the called party request message including the corresponding character to the number manager 70, and the call. The setting unit sets up a call between the called terminal 90 and the calling terminal 10 using the received called number.

 When there are a plurality of number management devices 70, the character recognition unit recognizes the characters, and the called number obtaining unit acquires the called number from the number management device 70 corresponding to the recognized character. For example, a number management device according to the language (Hangul, English, Japanese, Chinese, etc.) of the text may exist separately, and a plurality of number management devices according to the calling terminal 10 subscriber, and also letters correspond to the person's name. There may be a number management device for providing a called number, and a number management device for providing a called number according to the reserved word. In addition, if the number management device according to the other criteria also provides the called party number corresponding to the character, it can be applied to all the same.

Other general configurations of the source-side exchange 30, for example, a receiver, a transmitter, a storage, a power supply, etc. will be omitted for the convenience of description of the invention.

Referring back to FIG. 1, the location register 50 performs a function of storing information of the terminal. The location register includes a home location register (HLR) and a visit location register (VLR), and there is a location register associated with each terminal subscriber. The location register stores the subscribed service information, location information, and the like of the associated terminal. Therefore, the exchange 30 recognizes the called party location register 50 through the called party number of the called terminal 90, and the information (location and the corresponding called party) of the called terminal 90 through the called party location register 50. Switch 35 information), and sets up a call. Descriptions thereof will be apparent to those skilled in the art, and thus detailed descriptions thereof will be omitted.

The number management device 70 performs a function of providing the called number of the called terminal 90 corresponding to the text of the called party information.

Figure 6a is a block diagram showing the configuration according to the function of the number management device according to an embodiment of the present invention, Figure 6b is a view showing a called number table stored in the number management device according to an embodiment of the present invention to be.

Referring to FIG. 6A, the number management apparatus 70 includes a receiver 71, a storage 72, an extractor 73, a register 74, and a transmitter 75.

The receiving unit 71 performs a function of receiving the text transmitted from the calling exchange 30 and the calling terminal 10 information (for example, a telephone number or a serial number). In addition, since it is apparent that arbitrary data can be received from a specific device, a detailed description thereof will be omitted.

The storage unit 72 stores a called number corresponding to one or more characters in correspondence with each subscriber information (including the calling terminal information) registered in advance. Each subscriber may have a separate area to store a called number corresponding to a text. Accordingly, the number management device 70 extracts the called number corresponding to the text received from the calling terminal 10 corresponding to the arbitrary subscriber information.

Hereinafter, a form in which a text and a called number corresponding to each subscriber information (for example, a calling terminal number) are stored will be described with reference to FIG. 6B.

According to FIG. 6B, the storage unit 72 stores the called party number table 80 corresponding to each subscriber.

The storage unit 72 corresponds to the subscriber information 81 of 010-3000-1122 (serial number may be used), and includes a called number table including a letter 82 and a called number 84 corresponding to each letter. Save 80.

Therefore, when receiving subscriber information corresponding to 010-3000-1122 and called party information corresponding to 'Hong Gil-dong' from the calling exchange 30, the called number of 010-1122-3333 is transmitted to the calling exchange 30.

Referring again to FIG. 6A, the extractor 73 extracts a called number corresponding to the information and text of the calling terminal 10 received by the receiver 71 from the storage 72.

The registration unit 74 stores the subscriber information (calling terminal information), the text, and the called number in the storage unit 72. That is, it performs a function of setting the called party number table 80. The stored subscriber information, text, and called number may be received through wired or wireless Internet, or may be registered through a web server provided by the number management device 70.

The transmitting unit 75 transmits the called number extracted by the extracting unit 73 to the calling exchange 30. In addition, since it is apparent that arbitrary data can be transmitted to a specific device, a detailed description thereof will be omitted.

Hereinafter, the overall procedure of the voice call service through the recipient information in the text format of the present invention will be described.

7 is a diagram illustrating an operation procedure of a method for providing a voice call service through callee information in a text format according to an embodiment of the present invention.

According to FIG. 7, in step S710, the calling terminal 10 generates a call request message using the input text as the called party information and transmits it to the base station 20 in step S715. In step S720, the base station 20 transmits a call request message including the called party information received from the calling terminal 10 to the calling side exchange 30.

In step S725, the calling party exchange 30 recognizes that the called party information of the received call request message is in a text format, and in step S730, requests the called party number in the number format corresponding to the text to the number management apparatus 70. Here, when there are a plurality of number management apparatuses 70, the calling side exchange 30 may recognize the text of the called party information and recognize the number management apparatus 70 corresponding thereto.

In step S735, the number management device 70 extracts the called number in the number format corresponding to the received text, and transmits the called number to the calling party exchange 30 in step S740.

In step S745, the calling side exchange 30 recognizes the location register 50 corresponding to the called number and the current location information (location information on the corresponding exchange and base station, etc.) of the called terminal 90 to the corresponding location register 50. Request the destination terminal information, and receives the destination terminal information from the location register 50 in step S750. In step S755, the calling side exchange 30 sets up a call for a voice call between the called side exchange 35, the calling terminal 10 and the called terminal 90.

Hereinafter, referring to FIG. 8, an operation procedure of the calling side exchange 30 for providing a voice call service through callee information in a text format according to the present invention will be described.

8 is a diagram illustrating an operation procedure of an originating exchange according to an exemplary embodiment of the present invention.

According to FIG. 8, in step S810, a call connection request message including called party information is received from the base station 20, and in step S820, it is determined whether the called party information is a text. As described above, a character recognition method through a number type parameter and a character recognition method through a preset identifier may be used.

If the called party information is in a character format rather than a number format, the character is recognized in step S820, and the number management device 70 corresponding to the recognized character is determined. For example, if the character is English, the number management device for managing overseas telephone numbers is recognized, and if the character is a preset reserved word, the number management device corresponding thereto is recognized.

The character is transmitted to the number management apparatus 70 determined in step S830, and a called number in the form of a number corresponding to the character is received from the number management apparatus 70 in step S840. In step S850, the terminal register information is requested to the location register 50 corresponding to the called number, and the corresponding terminal information is received. In step S860, a call is established between the called terminal 90 and the calling terminal 10 via the base station 25 or the telephone station 27 via the corresponding called side exchange 35.

9 is a diagram illustrating a procedure of performing a voice call according to an embodiment of the present invention by inputting and transmitting text as callee information.

According to FIG. 9, the calling terminal 10 switches to a text mode corresponding to an identifier (for example, *) input from a user, and receives a character (hong gil dong) rather than a number as caller information. As a call request is made to the base station 20 of the communication network using the character input in step S910 as the called party information, the exchange receives the called party information.

In step S920, the exchange recognizes Honggil-dong, the called party information, and transmits a text to the number management device providing the called number corresponding to the name in step S930. In step S940, the number management device 70 extracts the called number corresponding to the letter 'hong gil dong' from the called number table. In step S950, as the number management apparatus 70 transmits the extracted called number to the exchange, the exchange sets a call between the calling terminal 10 and the called terminal 90 corresponding to the called number in step S960, and In S970, a voice call between each terminal is performed.

The method of the present invention as described above may be implemented in a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

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.

As described above, according to the present invention, a method, an apparatus, and a recording medium for providing a voice call service through a callee information in a text format capable of performing a voice call by inputting a called number as a text may be provided. There is.

In addition, it is possible to provide a voice call service method, a device, and a recording medium thereof, which can provide convenience to a user by using characters that are easily remembered by a user even if the phone number is not stored and is not stored in the terminal. have.

In addition, the terminal user may use text as the called party information, so that not only a general voice call but also various voice call services connected to a called terminal providing search information according to a specific letter may be provided.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art that various modifications of the present invention within the scope without departing from the spirit and scope of the invention described in the claims below And can be changed.

Claims (16)

A method of providing a voice call service by an exchange of a mobile communication network to a calling terminal that transmits called party information for voice call connection in a text format, Receiving a call request message including the called party information from a base station according to the calling terminal; Recognizing a character corresponding to the called party information; Determining whether the recognized character includes a predetermined reserved word; If the reserved word is not included, a called number corresponding to the character is obtained from a number management device corresponding to the calling terminal. Recognizing a number management device corresponding to the reserved word among a plurality of number management devices when the reserved word is included, and acquiring a called number corresponding to the character from the recognized number management device; And And processing the call to be set up in correspondence with the called number by the calling terminal. The method of claim 1, When the text further includes a search word together with the reserved word, the called party number corresponding to the reserved word is received from the number management device, and the caller terminal can receive information according to the search word from the called terminal. Voice call service providing method through the recipient information of the text form, characterized in that transmitted to the called terminal. The method of claim 1, The called party information further includes a number type parameter, and recognizes that the called party information is a text through a preset value of the number type parameter. The method of claim 1, And receiving a preset identifier together with the called party information, and recognizing that the called party information is a text through the identifier. The method of claim 1, And the called party information is a KSC5601 format or an ASCII format. In the method for providing a voice call service in the terminal, Receiving a character; Receiving a call request; Generating called party information corresponding to the text; And Transmitting a call request message including the called party information to an exchange through a base station, The exchange recognizes the character, acquires a called number according to the letter from a number management device corresponding to the recognized character among a plurality of number management devices, and processes the terminal to set a call corresponding to the called number. Method of providing a voice call service through the character information of the called party. The method of claim 6, When the text includes a reserved word and a search word, the exchange acquires a called number corresponding to the reserved word from the number management device, and the terminal receives information according to the search word from the called terminal. A method of providing a voice call service through recipient information in a format. The method of claim 6, The called party information further includes a number type parameter or a preset identifier, and the exchange recognizes the called party information in the form of a character, wherein the called party information is recognized through a preset value of the number type parameter or the identifier. How to provide voice call service through The method of claim 6, Switching to the character input mode corresponding to the input of the preset identifier; Voice call service providing method through the recipient information of the text format further comprising a preceding. The method of claim 6, The method of claim 1, further comprising the step of displaying the input text. In the exchange to provide a voice call service to the calling terminal that transmits the called party information for the voice call connection in text format, A receiver for receiving a call request message including callee information in a text format from a base station corresponding to the calling terminal; A character recognition unit recognizing that the called party information is a character and recognizing the character; If the reserved word is not included in the text, the called party number corresponding to the text is obtained from the number management device corresponding to the calling terminal. If the reserved word is included, the called word corresponds to the reserved word. A called number obtaining unit that recognizes a number managing device and obtains a called number corresponding to the character from the recognized number managing device; And Call setting unit for setting a call between the called terminal and the calling terminal corresponding to the called number Voice call service providing exchange through the recipient information of the text format including a. The method of claim 11, When the letter includes a search word together with the reserved word, the called number obtaining unit receives a called number corresponding to the reserved word from the number management device, and the caller terminal receives information according to the search word from the called terminal. And the search word is transmitted to the called terminal so that the voice call service providing exchange through the called party information in a text format. In the terminal providing a voice call service, An input unit for receiving a text and call request; A message generator for generating a call request message using the text as called party information according to the call request; And Including a transmitter for transmitting the call request message to the exchange through the base station, The exchange recognizes the character, acquires a called number according to the letter from a number management device corresponding to the recognized character among a plurality of number management devices, and processes the terminal to set a call corresponding to the called number. A voice call service providing terminal using character called party information. The method of claim 13, A voice call service providing terminal through callee information in a text format further comprising a display unit for displaying the input text. The method of claim 13, And a terminal for providing a voice call through text information of the called party so that the exchange receiving the call connection request from the base station recognizes that the called party information is a text. In order to perform a method for providing a voice call service through a receiver information in a text format, a program in which a terminal program is executed by a digital processing device is tangibly embodied, and a recording medium on which a program that can be read by a digital processing device is recorded. To Receiving a character; Receiving a call request; Generating called party information corresponding to the text; Transmitting a call request message including the called party information to an exchange through a base station, The exchange recognizes the character, acquires a called number according to the letter from a number management device corresponding to the recognized character among a plurality of number management devices, and processes the terminal to set a call corresponding to the called number. A recording medium having a program recorded thereon.

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