KR20070014848A - Method and system for providing automatically redialing service and mobile communication terminal therefor - Google Patents

Abstract

A method and a system for providing an automatic re-origination service are provided to enable a caller to attempt a call by performing an automatic call re-origination to a different phone number of a receiver even when the receiver can not receive the call through a specific phone number or does not receive the call within a predetermined time through the specific phone number if the caller originates the call after inputting or selecting the specific phone number of the receiver only one time, thereby removing inconvenience that the caller re-originates the call after additionally inputting or selecting the different phone number of the receiver. A method for providing an automatic re-origination service comprises the following steps of: receiving a speech request call to the first receiving terminal from an originating terminal(S210); checking whether the originating terminal is subscribed for the automatic re-origination service or not(S220); checking whether the speech request call can be transmitted to the first receiving terminal or not by checking the state information of the first receiving terminal if the originating terminal is subscribed for the automatic re-origination service(S230); and retransmitting the speech request call to a phone number of the second receiving terminal, one of plural phone numbers of a receiver, by checking the registration information for the automatic re-origination service of the originating terminal if the speech request call can not be transmitted to the first receiving terminal(S240).

Description

Method and system for providing automatic redialing service, and mobile communication terminal therefor {Method and System for Providing Automatically Redialing Service and Mobile Communication Terminal Therefor}

1 is a block diagram schematically illustrating an automatic redial service providing system according to a first embodiment of the present invention;

2 is a flowchart illustrating a method for providing automatic redial service according to the first embodiment of the present invention;

3 is a block diagram schematically illustrating a mobile communication terminal having an automatic redial function according to a second embodiment of the present invention;

4 is a flowchart illustrating a method of providing an automatic redialing service according to a second embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: calling terminal 120: mobile communication network

122: wireless base station 124: mobile communication switching center

126; Home Location Register 128: Data Core Network

130: public switched telephone network 140: Internet

150: first destination terminal 152: second destination terminal

160: user terminal 310: memory unit

320: key input unit 330: liquid crystal display

340: microprocessor 350: speaker

360: microphone 370: wireless communication processing unit

380: antenna

The present invention relates to a method and system for providing automatic redial service, and a mobile communication terminal for the same. More specifically, when a caller makes a call to a called party's specific telephone number using a mobile terminal, an automatic redial call is automatically redialed to a phone number other than the specified telephone number if the called party cannot or cannot answer the call. A service providing method and system, and a mobile communication terminal therefor.

Recently, with the development of computer and communication technology, various wireless communication services are provided using a wireless communication network. The most basic wireless communication service is a wireless voice call service that provides a voice call to a mobile terminal user wirelessly, which can provide a service regardless of time and place. In addition, while supplementing the voice call service by providing a text message service, recently, a wireless Internet service that provides an Internet communication service to a user of a mobile communication terminal through a wireless communication network has emerged.

In order to provide such a service, a mobile communication system has been developed through a first generation analog AMPS (Advanced Mobile Phone System) method and a second generation cellular / personal communication service (PCS) method. The IMT-2000 (International Mobile Telecommunication 2000), which is a third generation mobile communication system established by ITU-R as a standard, is commercially available.

IMT-2000 is supported by existing IS-95A, IS-95B, and IS-95C networks, for example, Code Division Multiple Access (CDMA) 2000 1x, CDMA 2000 Evolution Data Only (EV-DO), Wideband CDMA (WCDMA), etc. It is a system that can service data communication at a speed faster than the data transmission speed. In particular, using the IMT-2000 system, it is possible to provide various multimedia services at a faster speed as well as to improve the quality of services using existing voice communication services and WAP (Wireless Application Protocol).

The mobile subscriber uses the mobile communication system to talk to the remote party. On the other hand, although the mobile subscriber has entered and sent the other party's phone number using the mobile communication terminal to talk to the other party, the other party may already be talking to another mobile subscriber or wireline subscriber, or the other party may have a specific call. You may be unable to answer a phone call for any reason.

Therefore, when the other party is busy, the subscriber must hear the output tone indicating that the user is busy, terminate the call, and then try to call again by re-calling a second time or re-enter another phone number. If you do not receive it, you will need to re-enter another phone number again.

On the other hand, in recent years, due to the development of mobile communication technology, the majority of people have many telephone numbers. That is, most people usually have a plurality of telephone numbers, such as a home telephone number for a landline telephone used at home, a company telephone number for a landline telephone used at work, and a mobile telephone number for a mobile communication terminal to be carried. In addition, recently released mobile communication terminals have a phone book function and a function of storing a plurality of phone numbers in the phone book.

Therefore, at the same time as in the case described above, the mobile communication subscriber directly enters a phone number other than the phone number transmitted from the other party's phone number in the mobile communication terminal and redials, or executes a phone book function in the mobile communication terminal, to the name of the other party. Select and resend a phone number other than the phone number from the stored phone numbers.

However, if you make a call to the first phone number, and if you are on a call or do not answer a call, select the End Call key, enter another phone number or search and select another phone number, and then repeat the series of steps. According to the conventional calling method, the mobile communication subscriber has to bear the inconvenience of repeated re-entry and re-sending until the calling is successful.

In order to solve this problem, the present invention, when a caller makes a call to a specific phone number of the called party using a mobile communication terminal, when the called party can not answer or do not receive a call, the call is automatically dialed to another phone number other than the specific phone number. The present invention relates to a method and a system for providing automatic redial service, and a mobile communication terminal for the same.

In order to achieve the above object, the present invention, as a caller's mobile communication terminal, receives a call request terminal, a first called terminal or a second called terminal, which is a calling terminal, a called party's mobile communication terminal or a landline telephone. A system comprising a mobile communication network for providing a voice call service to a calling terminal, the method comprising: (a) receiving a call request call for a first called terminal from a calling terminal; (b) checking whether the calling terminal is subscribed to the automatic redialing service; (c) checking whether the call request call can be delivered to the first called terminal by checking the state information of the first called terminal when the calling terminal is subscribed to the automatic redialing service as a result of checking in step (b); And (d) if the call request call cannot be delivered to the first called terminal as a result of the checking in step (c), confirming the subscription information of the automatic redialing service of the calling terminal and calling one of a plurality of call numbers of the called party. It provides a method for providing an automatic redialing service comprising the step of redialing a call request call to the phone number of the second destination terminal.

In addition, according to another object of the present invention, as a mobile communication terminal of the caller, the first terminal or the second terminal, the calling terminal, which is a calling terminal for making a call request call, a mobile communication terminal or a landline telephone of the called party, the mobile terminal and the mobile terminal It includes a wireless base station for allocating a wireless channel to a terminal, performing a wireless call processing, and a data core network (DCN) connected to the wireless base station to perform data communication, and provides a voice call service to a calling terminal. A system for storing a service profile relating to subscriber information of a mobile subscriber including a caller, wherein the location registration of the calling terminal and the mobile terminal is performed, and the telephone numbers and service types of the caller and the mobile subscriber are provided. Auto redial book that stores information about and redials call request calls A home location register (HLR) for storing the subscription information for the service, the state information of the first and second destination terminals, and a plurality of caller numbers in correspondence with the caller; And one or more of basic and additional service processing, incoming and outgoing call processing of a subscriber, location registration procedure and handoff procedure, and interworking with another network. Check whether the calling terminal is subscribed to the automatic redialing service to check the status information of the first called terminal, and if it is unable to transfer the call request call to the first called terminal, the telephone number of any one of a plurality of called numbers of the called party. A mobile switching center (MSC) for resending a call request call by selecting a phone number of a second called terminal and forwarding the call request call to the second called terminal; Provide a system.

In addition, according to another object of the present invention, as a caller's mobile terminal, the first terminal or the second terminal, which is a calling terminal for sending a call request call, a mobile communication terminal or a landline telephone of a called party, a call request call; In a system including a mobile communication network which receives and provides a voice call service to an originating terminal, the method for transmitting a call request call, the method comprising: (a) receiving or selecting a phone number of a first called terminal and receiving a call request call from the mobile communication network; Transmitting to; (b) checking whether an automatic redialing function of redialing a call request call is activated; (c) checking whether a call connection is made with the first called terminal; And (d) when the call connection with the first destination terminal is not established as a result of checking in step (c), a plurality of phone numbers of the called party are searched among the phone books in which a plurality of phone numbers are stored, and among the plurality of phone numbers of the called party. Selecting a phone number of the second destination terminal which is any one phone number and re-sending a call request call to the phone number of the second destination terminal provides a method for redialing in a mobile communication terminal.

In addition, according to another object of the present invention, a mobile communication network which is connected to the first or second destination terminal, the first and second destination terminal, which is the mobile communication terminal or landline of the called party to provide a voice call service Wirelessly connected to the key input unit including any one or more of a numeric button, a character button and a menu selection button for receiving numbers and letters, a liquid crystal display for displaying the operation status and information of the mobile communication terminal, coding the audio signal Or an antenna for decoding and transmitting / receiving a radio signal transmitted / received between a mobile communication network and a wireless communication processor for performing any one or more of an equalizer function, a digital signal processing function, a baseband conversion function, and an RF signal processing function. And a mobile communication terminal for sending a call request call to a mobile communication network In the present invention, a plurality of applications for performing voice calls, data communication and additional functions, protocol software for processing messages to and from a mobile communication network, and a telephone for registering and storing a plurality of telephone numbers in a phone book A memory unit for storing phone book software, a plurality of telephone numbers and automatic redialing software for redialing call request calls; And when the telephone number of the first called terminal is input or selected by the key input unit, and the call key is selected, the memory unit, the wireless communication processor, and the antenna are controlled to send a call request call and check whether the automatic redial function is activated. After the automatic redialing software is executed, it is checked whether or not a call connection is made with the first receiving terminal according to the algorithm of the automatic redialing software. And a control unit for searching for a number, selecting a phone number of a second called terminal, which is one of a plurality of called numbers of the called party, and re-sending a call request call to the phone number of the second called terminal. Provided is a mobile communication terminal having an automatic redial function.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram schematically illustrating an automatic redial service providing system according to a first embodiment of the present invention.

A system for providing automatic redialing service according to a preferred embodiment of the present invention includes a calling terminal 110, a mobile communication network 120, a public switched telephone network (PSTN) 130, the Internet 140, and a first called terminal. 150, the second destination terminal 152 and the user terminal 160.

The calling terminal 110 is connected to another mobile communication terminal (e.g., the second terminating terminal 152) using the mobile communication network 120 or through a public switched telephone network 130, a common landline telephone (e.g., , The first communication terminal 150 and a mobile communication terminal for performing a voice call.

Here, the mobile communication terminal 110 is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, Hand-Held PC (Global System for Mobile) GSM, WCDMA (Wideband CDMA) ) Phones, CDMA-2000 phones, MBS (Mobile Broadband System) phones and the like. Here, MBS phone refers to a mobile phone to be used in the fourth generation system currently being discussed.

The mobile communication network 120 includes a wireless base station 122, a mobile switching center (MSC) 124, a home location register (HLR) 126, and a data core network (DCN). It includes 128, and provides a voice call service to the calling terminal 110, the first destination terminal 150, the second destination terminal 152.

The wireless base station 122 includes a base station transmission system (BTS) and a base station controller (BSC). In this case, the base station transmitter is located in each cell unit and locates the position of a mobile communication terminal (calling terminal 110, second called terminal 152, etc.) existing in a cell area under its jurisdiction. It performs registration and allocates a wireless channel for voice and data communication to the mobile communication terminal (calling terminal 110, second called terminal 152, etc.). In addition, the base station controller performs various functions required for radio call processing such as handoff while controlling and managing a plurality of base station transmitters.

The mobile communication switching center 124 performs basic and additional service processing, incoming and outgoing call processing of subscribers, location registration and handoff procedures, and interworking with other networks.

The home location register 126 is a database that stores service profiles related to subscriber information of mobile communication subscribers. The home location register 126 may be configured to recognize registration of a mobile communication terminal (calling terminal 110, second receiving terminal 152), delete registration, It performs functions such as location checking, and has information on a mobile number of a mobile subscriber, a mobile identification number (MIN), an electronic serial number (ESN), and a service type. The mobile switching center 124 uses the HLR 126 to determine the information and location of the originating mobile subscriber.

In addition, the mobile communication network 120 according to the first embodiment of the present invention is a call requesting a call from the originating terminal 110 to the first destination terminal 150 through the wireless base station 122 in the mobile communication switching center 124 When the request call is received, the service registration information of the calling terminal 110 is checked using the home location register 126, and when the calling terminal 110 is subscribed to the automatic re-dial service, the first called terminal 150 When the first destination terminal 150 is in a call, the power is turned off, and the paging is not possible. For example, when the call is not received within 1 minute, the phone number of any other phone number of the called party who is the user who uses the first called terminal 150 pre-stored in the home location register 126 (in FIG. 2 called party Connect the call to the terminal of the telephone number retrieved by searching a telephone number) of the group (152). Hereinafter, for convenience of explanation, it is assumed that the telephone number of the second called terminal 152 is selected as another telephone number of the called party.

In addition, the mobile communication network 120 according to the first embodiment of the present invention is connected to the Internet 140 through the data core network 128 to receive a subscription request for an automatic redialing service from the user terminal 160, and the service subscription information. Receive and store in the home location register 126. At this time, the mobile communication network 120 receives the telephone numbers of several called parties from the user terminal 160 and stores them in the service subscription information of the caller. The called party's telephone number may be a landline telephone telephone number such as the first called terminal 150, or may be a mobile communication terminal telephone number such as the second called terminal 152.

The public switched telephone network 130 is a wired public telephone network provided by a general wired communication service provider. The public switched telephone network 130 is a network configured by connecting a telephone line to a telephone exchange facility, and between a mobile telephone and a mobile communication network 120 between a mobile communication terminal and a wired telephone. Provide voice call service to make voice calls.

The Internet 140 refers to a global open computer network architecture that provides the TCP / IP protocol and various services that exist in the upper layers, namely HTTP, Telnet, FTP, DNS, SMTP, SNTP, NFS, and NIS.

The first called terminal 150 is connected to the public switched telephone network 130 to perform a voice call with another landline telephone through the public switched telephone network 130 or through the public switched telephone network 130 and the mobile communication network 120. A landline telephone of a called party making a voice call with a mobile communication terminal such as 110 and a second called terminal 152.

The second destination terminal 150 is wirelessly connected to the mobile communication network 120 and uses a voice call service provided by the mobile communication network 120 and the wired telephone or the calling terminal 110 such as the first destination terminal 150. A mobile communication terminal of a called party performing a voice call with the same mobile communication terminal.

In the present invention, the caller makes the first call using the calling terminal 110 to the first called terminal 150, which is a landline telephone, and the called person is not busy using the first called terminal or does not receive the call using the first called terminal. At this time, the mobile communication network 120 automatically redials to the telephone number of the second called terminal 152, which is another stored telephone number of the called party.

Here, the telephone number of the called party that the caller first makes is the telephone number of the first called terminal 150, which is a landline telephone, and the phone number automatically redialed is the second called terminal 152 of the mobile communication terminal. It may be a telephone number, but may be first dialed to the telephone number of the first called terminal 150, which is a landline telephone, and redialed to the telephone number of another called telephone of the called party, or the second called terminal 152, which is a mobile communication terminal. The first number may be dialed to redial the telephone number of the first called terminal 150, which is the landline telephone of the called party, and may be redialed to another telephone number of the called party.

The user terminal 160 is a computer that subscribes to an automatic redialing service by communicating with the mobile communication network 120 through the Internet 140 and registers a telephone number of the called party. The user terminal 160 may be a desktop computer or a laptop computer. As a communication means for connecting to 140, a wired communication modem such as a high-speed Internet modem such as an Asymmetric Digital Subscriber Line (ADSL) and a Very High Data Rate Digital Subscriber Line (VDSL) is provided, and the information is connected to the Internet 140. It is equipped with a web browser for searching.

2 is a flowchart illustrating an automatic redial service providing method according to a first embodiment of the present invention.

The caller inputs the telephone number of the first called terminal 150 of the called party's telephone number to the calling terminal 110 to make a voice call with the called party, and when the call key is input, the calling terminal 110 calls the call request call. Sent to the mobile communication network 120 (S210).

When the mobile communication network 120 receives the call request call from the calling terminal 110, the mobile terminal 120 checks whether the calling terminal 110 is subscribed to the automatic redialing service using the home location register 126 (S220).

The mobile communication network 120 checks the state information of the first called terminal 150 using the home location register 126 when the calling terminal 110 is subscribed to the automatic redialing service as a result of checking in step S220. 1 when the called terminal 150 is busy, it is checked whether the incoming call is a case in which one of the cases where power is turned off and paging is not possible (S230).

The mobile communication network 120 checks the service subscription information of the calling terminal 110 pre-stored in the home location register 126 when the first called terminal 150 is impossible to receive, as a result of checking in step S230. The call request call of the calling terminal 110 is re-sent to the second called terminal 152, which is another phone number of the called party, the user of 150 (S240).

That is, the mobile communication network 120 is the second destination terminal 152, which is one of the other phone numbers of the registered called party when the caller subscribes to the automatic redialing service when the first destination terminal 150 is impossible or does not ring. Forwards the call to your phone number.

Here, when the caller registers another phone number of the called party while subscribing to the automatic redialing service using the user terminal 160, the caller may register several phone numbers. At this time, the caller may automatically register the priority of the telephone number to be re-sent, and determine the order of the telephone numbers to be re-sent when the first telephone number is not reachable or does not reach.

In addition, the caller may register the number of redials when redialing while registering another phone number of the called party using the user terminal 160. That is, when the caller registers the priority of the phone number to be re-sent and sets the number of times to automatically redial the corresponding phone number, the mobile communication network 120 first re-sends the phone number according to the priority set by the caller. If the number of redials is set in the telephone number, the number of redials is repeated.

If the first destination terminal 150 is not impossible to receive, the mobile communication network 120 checks whether the first destination terminal 150 does not receive the call within a predetermined time (S232).

If the first destination terminal 150 does not receive the call within the predetermined time as a result of checking in step S232, the mobile communication network 120 proceeds to step S240 to the phone number of the second destination terminal 152, which is another phone number of the called party. Redial.

When the first called terminal 150 receives the call within the predetermined time, the mobile communication network 120 connects the call request call of the calling terminal 110 to the first called terminal 150 to call the calling terminal ( It is possible to perform a voice call between the 110 and the first destination terminal (150) (S234).

Thus, when the caller makes a call using the calling terminal 110 to the called party, when the caller inputs only one phone number (first called terminal 150) of the called party's phone number, the called person uses the telephone number. When the call cannot be received or the call is not received, the caller can try to connect with the called party without having to re-enter another phone number (the second called terminal 152).

In the above, the first embodiment of the present invention has described a case in which the mobile communication network 120 redials to another telephone number of the called party. Hereinafter, as a second embodiment of the present invention, the call originating terminal 110 performs a redial function. Will be set to redial to another phone number.

Hereinafter, for convenience of description, a second embodiment of the present invention will be described with reference to the calling terminal 110, the mobile communication network 120, the first called terminal 150, and the second called terminal 152 described with reference to FIG. . However, in the second embodiment of the present invention, as described above, the call is re-sent from the calling terminal 110 rather than from the mobile communication network 120.

3 is a block diagram schematically illustrating a mobile communication terminal having an automatic redial function according to a second embodiment of the present invention.

The calling terminal 110, which is a mobile communication terminal having an automatic redial function according to the second embodiment of the present invention, includes a memory unit 310, a key input unit 320, a liquid crystal display 330, a microprocessor 340, A speaker 350, a microphone 360, a wireless communication processor 370, and an antenna 380 are included.

The memory unit 310 drives the calling terminal 110, performs voice and data communication, stores a plurality of applications performing various additional functions, protocol software for processing messages transmitted and received with the mobile communication network 120, and the like. Store multiple phone numbers by saving the phonebook software. To this end, the memory unit 310 is an electrically non-volatile memory (EEPROM) capable of modifying the contents in bytes, or a flash memory capable of modifying the contents in blocks. ) And SDRAM (Synchronous Dynamic Random Access Memory).

The memory unit 310 according to the second embodiment of the present invention stores the automatic redialing software. The automatic redialing software is executed by the microprocessor 340, so that when the calling terminal 110 sends a call request call to a specific phone number, whether the incoming call message is received from the mobile communication network 120 and the incoming call cannot be received within a predetermined time. If it is not received by receiving a message or can not be received within a predetermined time to check whether the call is a software for re-sending a call request call to another phone number by searching the other phone number of the called party stored in the memory 310.

That is, when the caller executes the automatic redialing software through the predetermined procedure in the calling terminal 110 to activate the automatic redialing function, inputs the telephone number of the first called terminal 150, and enters a call key, the automatic redialing According to a predetermined algorithm of software, the calling terminal 110 transmits a call request call to the mobile communication network 120, and when the first destination terminal 150 is busy from the mobile communication network 120, when the power is turned off, paging In this case, if the incoming call cannot be received, the incoming call impossible message is received, or the incoming call success message is received from the mobile communication network 120 because the first called terminal 150 does not receive the call within a predetermined time (for example, one minute). If not, one of the telephone numbers stored in the memory 310 is searched for another telephone number of the called party whose registered telephone number of the first called terminal 150 is registered. 2 by selecting the telephone number of the receiver terminal 152 transmits to the automatically redial the phone number to the second receiving terminal 152 and the mobile communication network 120 the call request call for the call.

The key input unit 320 includes a numeric button for inputting a number such as a telephone number, a character button for inputting a character, a menu selection button, and the like. The liquid crystal display 330 displays an operating state of the terminal including a power supply state, a radio wave reception intensity, a date, and a time. When the information is transmitted in the form of text, the liquid crystal display 330 displays the information on the liquid crystal display. Make sure you have the information you need.

The microprocessor 340 controls the overall operation of the calling terminal 110. In addition, the microprocessor 340 may not only perform a voice call and data communication in accordance with a signal input from the key input unit 320 or the wireless communication processing unit 370, but also provide a function to the memory unit 310 to perform additional functions. Run various stored applications. In addition, when data that is not executed immediately is input, the microprocessor 340 transmits the data to the memory unit 310 and stores the data.

When the microprocessor 340 according to the second embodiment of the present invention receives a key value for activating the automatic redial function from the key input unit 320, the microprocessor 340 executes the automatic redial software to execute the automatic re-send software. Control each component.

The speaker 350 outputs a voice signal output from the wireless communication processor 370 as an audible sound, and the microphone 360 converts the voice input of the mobile subscriber to an electrical signal and transmits the voice signal to the wireless communication processor 370.

The wireless communication processor 370 encodes or decodes a voice signal, performs an equalizer function to remove multipath noise, and performs a digital signal processing function for performing an acoustic data processing function, and converts a signal to be transmitted and received into a baseband signal. A baseband conversion function for performing digital-to-analog conversion and analog-to-digital conversion processing, and receives a radio frequency (RF) signal from the antenna 380 and converts it into an intermediate frequency (IF) signal, and converts the IF signal into an RF signal. Converts and performs an RF signal processing function for demodulating and amplifying an RF signal. The antenna 380 transmits and receives a radio signal in the air.

4 is a flowchart illustrating a method of providing an automatic redialing service according to a second embodiment of the present invention.

When the caller operates the key input unit 210 of the calling terminal 110 to input the telephone number of the first called terminal 150 through the key input unit 210 of the calling terminal 110, and enters a call key, the calling The terminal 110 transmits the call request call to the mobile communication network 120 (S410).

 The originating terminal 110 which has sent the call request call checks whether the automatic redial function is activated (S420).

As a result of checking in step S420, the calling terminal 110 follows the normal calling procedure if the automatic redialing function is not activated, and if the calling terminal 110 receives an impossible call message from the mobile communication network 120 if the automatic redialing function is activated. Check (S430).

As a result of checking in step S420, when the caller terminal 110 receives the impossible call message from the mobile communication network 120, the caller terminal 110 searches for a phone book stored in the memory unit 310, and then sends a call number, that is, the first caller terminal ( The phone number of 150 is searched for another phone number of the called party and is re-divided to any one of the other phone numbers of the called party, that is, the phone number of the second called terminal 152 (S440).

If the originating terminal 110 does not receive the incoming call message from the mobile communication network 120 as a result of checking in step S430, it checks whether the first called terminal 110 is called within a predetermined time (S432).

That is, the originating terminal 110 may be called by the first called terminal 110, the first called terminal 110 within a predetermined time from the time when the ring back tone (Ring Back Tone) received from the mobile communication network 120 The incoming call is checked whether a call connection is made with the first called terminal 110.

As a result of the check in step S432, when the first called terminal 150 receives the call within a predetermined time, the calling terminal 110 performs a call with the first called terminal 150 (S434). If the call is not received within the predetermined time, the process proceeds to step S440 and redials the phone number of the second called terminal 152.

Thus, when the caller enters or selects only the specific telephone number of the called party, that is, the telephone number of the first called terminal 150, from the calling terminal 110, the first called terminal 150 cannot reach the called party or the called party. Even if the call is not received because the call is not received, the caller terminal 110 automatically redials without additionally inputting the caller's phone number, so that the caller can easily try to call.

In the second embodiment of the present invention, the caller executes the phone book software stored in the memory unit 310, when storing the phone number, while storing several phone numbers for each called party, priority of the phone number for the automatic redial function. And the number of redials, and the automatic redialing software stored in the memory unit 310 selects a phone number to be redialed according to the priority if the priority and the number of redials are set, and then redials the number of redials. You can try

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, when a caller enters or selects a specific telephone number of a called party only once, when the called party is calling to a specific telephone number, the terminal of the specific telephone number is turned off or a specific telephone Even if the called party fails to reach a specific phone number, such as when the terminal of the number is not paged, or if the called person does not reach the specific phone number within a certain time, the caller must re-enter another caller's other phone number. There is an effect that you can try to automatically re-call to another phone number of the called party without the hassle.

Claims (12)

As a mobile communication terminal of a caller, a calling terminal which makes a call request call, a first called terminal or a second called terminal which is a called mobile communication terminal or a landline telephone, receives the call request call and provides a voice call service to the calling terminal. In a system comprising a mobile communication network, the method for providing the voice call service, (a) receiving the call request call for the first called terminal from the calling terminal; (b) checking whether the calling terminal is subscribed to an automatic redialing service; (c) if the calling terminal is subscribed to the automatic redialing service as a result of checking in step (b), checks the state information of the first called terminal and transmits the call request call to the first called terminal; Confirming whether or not; And (d) If the call request call cannot be delivered to the first called terminal as a result of checking in step (c), check the subscription information of the automatic redialing service of the calling terminal to check the number of phone numbers of the called party. Redialing the call request call to the telephone number of the second called terminal, which is any one telephone number; Automatic redial service providing method comprising a. The method of claim 1, wherein the method is Before step (a) above, (a-1) allowing access of a user terminal which is the sender's computer; (a-2) receiving a telephone number of the calling terminal and a plurality of telephone numbers of the called party from the user terminal; And (a-3) registering a plurality of telephone numbers of the called party by storing the telephone numbers of the calling terminal and the plurality of telephone numbers of the called party in correspondence with each other; Method for providing automatic redial service further comprising a. The method of claim 2, wherein the method is Between the step (a-2) and the step (a-3), (a-21) receiving priority information and re-call number information for one or more specific telephone numbers among the plurality of telephone numbers of the called party from the user terminal; Method for providing automatic redial service further comprising a. The method of claim 3, wherein step (d) The priority information and the number of re-calls are analyzed to determine the priority and the number of re-calls for any one or more of a plurality of callees' numbers, and to select a phone number of the second called terminal according to the priority. And re-sending by the number of redials to the phone number of the second called terminal. The method of claim 1, wherein in step (d), The case in which the call request call cannot be delivered is one of a case in which the first called terminal is impossible to receive and a case in which the first called terminal does not receive the call within a specific time. The method of claim 1, wherein the method is Between the step (c) and the step (d), (c1) if the call request call is transmitted to the first destination terminal as a result of the checking in step (c), providing the voice call service by connecting the originating terminal to the first destination terminal; Re-delivery service providing method characterized in that it further comprises. Allocating a radio channel to the calling terminal, the calling terminal, the first called terminal or the second called terminal, which is the calling party's mobile communication terminal or the landline telephone, the calling terminal and the mobile terminal, A system comprising a wireless base station performing call processing and a data core network (DCN) connected to the wireless base station to perform data communication, the system providing a voice call service to the calling terminal, A database storing a service profile of subscriber information of a mobile subscriber including the caller, wherein the location registration of the calling terminal and the mobile terminal is performed, and information on the telephone number and service type of the mobile subscriber; Storing the subscription information for the automatic redialing service to redial the call request call, status information of the first and second destination terminals, and a plurality of phone numbers of the called party in correspondence with the caller; Home Location Register (HLR); And Performs any one or more functions of basic and additional service processing, incoming and outgoing call processing of subscribers, location registration procedure and handoff procedure, and interworking with other networks, and uses the home location register when receiving the call request call. Check whether the calling terminal is subscribed to the automatic redialing service to check the state information of the first called terminal, and if the call request call cannot be delivered to the first called terminal, a plurality of telephones of the called party; A mobile switching center (MSC) for re-sending the call request call by selecting a phone number of the second called terminal, which is one of the numbers, and transmitting the call request call to the second called terminal. ) Automatic redial service providing system comprising a. An originating terminal for calling a call request call as a calling party's mobile communication terminal, a first called terminal or a second called terminal that is a called party's mobile communication terminal or a landline telephone, and receiving the call request call to provide a voice call service to the calling terminal. In the system comprising a mobile communication network, providing the call request call, (a) receiving or selecting a telephone number of the first called terminal and transmitting the call request call to the mobile communication network; (b) confirming whether an automatic redialing function of redialing the call request call is activated; (c) checking whether a call connection is established with the first called terminal; And (d) When the call of the first called terminal is not established as a result of the checking of the step (c), a plurality of phone numbers of the called party are retrieved from the phone book in which a plurality of phone numbers are stored, Re-sending the call request call to the phone number of the second destination terminal by selecting a phone number of the second destination terminal, which is one of phone numbers; Re-sending in a mobile communication terminal comprising a. The method of claim 8, wherein Before step (a) above, (a-1) receiving priority information and re-call number information for any one or more of a plurality of phone numbers of the called party and storing them in the phone book; Re-sending in a mobile communication terminal, characterized in that it further comprises. The method of claim 9, wherein step (d) Selecting the phone number of the second called terminal according to the priority determined by analyzing the priority information, and re-sending to the phone number of the second called terminal as many times as the number of redials identified by analyzing the redial number of times information; A method of redialing from a mobile terminal. The method of claim 8, wherein in step (d), When a call is not connected to the first destination terminal, a message indicating that the first destination terminal is impossible to receive from the mobile communication network and a ring back tone for the first destination terminal from the mobile communication network are received. The method of claim 1, wherein the mobile communication terminal is one of the cases where a call is not connected to the first called terminal within a specific time after receiving the call. A first communication terminal or a second destination terminal, which is a mobile communication terminal or a landline telephone of the called party, is connected wirelessly to a mobile communication network connected to the first destination terminal and the second destination terminal to provide a voice call service, A key input unit including any one or more of a numeric button, a character button, and a menu selection button to receive an input, a liquid crystal display for displaying an operation state and information of the mobile communication terminal, a coded or decoded voice signal, an equalizer function, A wireless communication processor for performing at least one of a digital signal processing function, a baseband conversion function, and an RF signal processing function, and an antenna for transmitting and receiving wireless signals transmitted and received between the wireless communication processing unit and the mobile communication network, In the mobile terminal for sending a call request call, A number of applications for voice calls, data communications and additional functions, protocol software for processing messages to and from the mobile communication network, phone book software for registering and storing a plurality of phone numbers in the phone book. A memory unit for storing the plurality of telephone numbers and automatic redialing software for redialing the call request call; And When the telephone number of the first called terminal is input or selected by the key input unit, and a call key is selected, the call request call is controlled by controlling the memory unit, the wireless communication processing unit and the antenna, and the automatic re-call function is performed. After checking whether it is activated and executing the automatic redialing software, if it is determined whether or not a call connection is made with the first called terminal according to the algorithm of the automatic redialing software, the call is not connected with the first called terminal. Search for a plurality of telephone numbers of the called party in the telephone directory, select a telephone number of the second called terminal which is any one of a plurality of telephone numbers of the called party, and select the telephone number of the second called terminal; A control unit for re-sending the call request call Mobile communication terminal having an automatic redial function, comprising a.

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