KR20070067275A - Mobile communication terminal and system and method for switching call - Google Patents

Abstract

A mobile terminal, and a call transfer system and a method thereof are provided to quickly and accurately recognize a situation of a service subscriber when the service subscriber is absent by setting a phone number of a terminal of a person who is located near the service subscriber or spends much time with the service subscriber. A database(110) stores at least one emergency number corresponding to a profile and a phone number of a service subscriber. When there is no response to a call connection request with respect to the phone number of the service subscriber by the certain number of times, a call transfer unit(100) attempts a call to one of emergency numbers corresponding to the phone number stored in the database.

Description

Mobile Communication Terminal and System and Method for Switching Call

1 is a block diagram schematically showing the configuration of a call switching system according to an embodiment of the present invention;

2 is a block diagram schematically illustrating a configuration of a mobile communication terminal according to an embodiment of the present invention;

3 is a flowchart schematically illustrating a call switching method that can be implemented on a mobile communication terminal according to an embodiment of the present invention;

4 is a flowchart schematically illustrating a call switching method that can be implemented on a call switching system according to an embodiment of the present invention.

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

100: call switching device 110: database

200: key input unit 210: call processing unit

220: communication unit 230: storage unit

240: control unit

The present invention relates to a call technology of a mobile communication terminal, and more particularly to a call technology that is automatically switched call.

The mobile communication terminal transmits a call connection request to the base station when there is a call command from the user. Then, the base station inquires the position of the receiving terminal through the switch of the mobile communication network, and forms a channel with the receiving terminal through the corresponding base station of the receiving terminal position. If there is a response from the receiving terminal, a voice call is performed.

Conventionally, if a called party does not respond to a call connection request when a call is made to a single receiving number, the caller cannot take special measures even if there are many missed calls. Therefore, there is no separate countermeasure for the calling terminal even for several missed calls. Eventually, the receiver must check the record for the missed call and wait for the first call.

So, for example, if you live far away or your old parents, there is no way for the caller to contact you even if they can't.

SUMMARY OF THE INVENTION The present invention is derived from this background, and an object thereof is to provide an apparatus and method for identifying a situation of an absentee.

The mobile communication terminal according to an aspect of the present invention for achieving the above object, if a call is not made even if a predetermined number of times is sent to a number, it is characterized in that the call is switched to another terminal located close to the receiving terminal holder It is done. The terminal to which the call is switched can be set by the calling terminal holder or the receiving terminal holder, and the call is switched to the terminal located closest to the absent receiving terminal.

According to the present invention according to the aspect of the present invention there is an effect that the caller can grasp the situation of the receiver and actively cope with it even when the receiver is not in a situation or in danger.

According to an additional aspect, there is an effect that it is possible to more quickly grasp the situation of the missed receiver by switching the call to a terminal close to the missed receiving terminal holder.

The foregoing and additional aspects of the invention are described in detail below to enable those skilled in the art to readily understand and reproduce through the embodiments described with reference to the accompanying drawings.

1 is a block diagram schematically showing the configuration of a call switching system according to an embodiment of the present invention. As shown, the call switching system according to the present invention includes a database 110 that stores a profile of a service subscriber and at least one emergency number corresponding to the telephone number of the service subscriber, and a call connection request for the telephone number of the service subscriber. If there is no response a predetermined number of times includes a call switching device 100 attempts to call one of the emergency numbers corresponding to the phone number stored in the storage unit.

The database 110 may change the setting contents of the data by a mobile communication terminal holder, which is a service subscriber, and stores the telephone number of the service subscriber and at least one emergency number corresponding to the telephone number.

The call switching device 100 may be implemented as an additional device connected to a mobile switching center (MSC) of a mobile communication network. In the present embodiment, the call switching device attempts to call one of the emergency numbers corresponding to the service subscriber's telephone number stored in the database 110 when the call connection request to the service subscriber's telephone number is not answered a predetermined number of times. do. The call transfer device 100 transmits the call connection request to the terminal 126 of the service subscriber when there is a call connection request from the calling terminal 120 to the service subscriber telephone number. If there is no response from the service subscriber terminal 126 more than a predetermined number of times, a call is attempted to one of the terminals 122 and 124 having an emergency number corresponding to the telephone number of the service subscriber.

According to a further aspect of the present invention, at least one emergency number corresponding to the telephone number of the service subscriber is set up from the service subscriber. By setting the terminal number of the person who is in close proximity to the service subscriber or who spends a lot of time, the situation can be identified more quickly and accurately when the service subscriber is absent.

According to another aspect, the call switching device 100 may make a call to a terminal located at the shortest distance from the terminal having the emergency number and the terminal having the emergency number according to the location of the cell to which the terminal of the service subscriber belongs. It is characterized by trying. In the present embodiment, the call switching device may grasp terminal information in a base station to which a service subscriber belongs from home location register (HLR) or visitor location register (VLR) information. That is, the terminal having the emergency number corresponding to the service subscriber first selects a terminal located in the same cell as the service subscriber's terminal and attempts to make a call to the terminal of the emergency number located close to the service subscriber. Can be.

According to another additional aspect, the call switching device 100 may attempt to make a call according to a priority assigned by a service subscriber among emergency number terminals. For example, the service subscriber can set the priority of the phone number of the terminal with which he / she spends more time among the emergency numbers that he / she sets up so that when he is absent, he / she can preferentially try to call the phone number. have.

2 is a block diagram schematically illustrating a configuration of a mobile communication terminal according to an embodiment of the present invention. As shown, the mobile communication terminal according to the present invention generates a call connection request message according to a key input unit 200 for receiving a call command, a communication unit 220 for performing wireless communication with a base station, and a call command. A call connection request for the call processing unit 210, the service subscriber's telephone number, the storage unit 230 storing at least one emergency number corresponding to the telephone number, and the telephone number of the service subscriber If there is no response a predetermined number of times, the control unit 240 attempts to call one of the emergency numbers corresponding to the phone number stored in the storage unit.

The key input unit 200 includes numeric keys 0 to 9 mounted on the keypad of the mobile communication terminal, and function keys such as a menu key, a call key, an end key, a cancel / erase key, a direction key, and the like. The key input unit 200 generates and outputs key input data corresponding to a key pressed by the terminal user. In the present embodiment, the key input unit 200 receives a received telephone number and a call command to the telephone number from the user, and outputs data for processing the command.

The communication unit 220 is a well-known configuration including an antenna and an RF circuit for communication with a base transceiver station (BTS). When a frequency signal received through a radio channel of a frequency band is received through an antenna, the band is down-converted, and the voice signal or data type is distinguished and output to the controller 240. In addition, the voice signal or data inputted from the call processor 210 are band-converted, converted into a radio signal of a frequency band through an antenna, and transmitted to the base station. In the present embodiment, the communication unit 220 performs wireless communication with the base station to perform a voice call.

The call processor 210 generates a call connection request message according to the call command and transmits the call connection request message through the communication unit 220. In the present embodiment, the call processor 210 may be implemented as part of the controller 240 to be described later.

The storage unit 230 is implemented as a flash memory that stores various types of data for storage, such as a phone book, an outgoing message, and a received message, in a typical mobile communication terminal. The storage unit 230 may be implemented as a database in which a separate memory space is allocated. In the present embodiment, the storage unit 230 may change the setting contents of the data by the mobile communication terminal holder, and stores the telephone number of the service subscriber and at least one emergency number corresponding to the telephone number.

The control unit 240 is a known configuration for controlling the overall operation of the mobile communication terminal. The baseband circuit of the communication unit 220 and most of the circuits of the control unit 240 are commercially provided as a single integrated circuit. This integrated circuit, commonly referred to as an MSM chip, includes internally dedicated hardware for processing communications, a digital signal processor and a general purpose microprocessor. Each part constituting the control unit 240 may be configured by dedicated hardware or software or a mixture thereof. In the present embodiment, the control unit 240 attempts to call one of the emergency numbers corresponding to the telephone number stored in the storage unit 230 when the call connection request for the service subscriber is not answered a predetermined number of times. .

According to an additional aspect of the present invention, the control unit 240 attempts to make a call according to a predetermined priority among emergency numbers corresponding to the telephone number of the service subscriber. In one embodiment, the priority may be specified by the holder of the mobile communication terminal by setting the priority separately for each emergency number stored in the storage 230. For example, the user may set the mobile terminal number or the wired telephone number of the person who lives near the service subscriber to be called or who spends a lot of time with the service subscriber.

Hereinafter, a call conversion method according to the present invention will be described. 3 is a flowchart schematically illustrating a call switching method that can be implemented on a mobile communication terminal according to an embodiment of the present invention. In one embodiment, call switching according to the present invention is implemented by one or a plurality of organically cooperated programs executed by the controller 240 for controlling the overall operation of the mobile communication terminal.

In the present embodiment, the call switching method comprises the steps of storing a telephone number of a service subscriber and at least one emergency number corresponding to the telephone number, generating and transmitting a call connection request message according to a call command, and a service subscriber. If the call connection request for the telephone number of the response is not answered a predetermined number of times, the method comprises attempting to call one of the emergency numbers corresponding to the telephone number.

First, the storage unit 230 receives and stores a telephone number of a service subscriber and at least one emergency number corresponding to the telephone number from a holder of the mobile communication terminal (step S300). If there is a call command from the key input unit 200 (step S310), the call processing unit 210 generates a call connection request message according to the call command. In this embodiment, it is assumed that the call connection request message is sent to the service subscriber's telephone number. The call connection request message is transmitted through the communication unit 220 (step S320).

The control unit 240 determines whether there is no response to the call connection request to the service subscriber more than a predetermined number of times (step S330). At this time, the predetermined number of times may be set by the user. For example, if there are no 5 consecutive responses, the call can be set up. If the call connection request for the same service subscriber is not answered more than a predetermined number of times, the controller 240 attempts to make a call from one of the emergency numbers corresponding to the number from the storage 230.

At this time, according to a characteristic aspect of the present invention, the call attempt step attempts to call according to a predetermined priority among emergency numbers corresponding to the phone number (step S332). That is, at least one emergency number is attempted by selecting one from the terminal holder according to a preset priority.

4 is a flowchart schematically illustrating a call switching method that can be implemented on a call switching system according to an embodiment of the present invention. According to another aspect of the present invention, there is provided a call switching method, comprising: storing a telephone number and at least one emergency number corresponding to a telephone number of a service subscriber, and a call connection request for the telephone number of the service subscriber is responded a predetermined number of times. If not there is a step of attempting a call to one of the emergency number corresponding to the telephone number.

As described above, the database 210 stores the telephone number of the service subscriber and at least one emergency number corresponding to the telephone number (step S400). At this time, at least one emergency number corresponding to the telephone number of the service subscriber is set from the service subscriber. For example, a service subscriber may set the terminal number of a person who lives in a location close to him or who spends a lot of time together.

The call switching device 100 checks whether there is a call attempt from the terminal to the terminal of the service subscriber (step S410). If there is no call connection request response for the telephone number of the service subscriber (step S420), the call switching device 100 checks whether or not a call attempt from the calling terminal to the service subscriber is abnormal by a predetermined number of times (step S422). If there is no response more than a predetermined number of times, a call is made with one of emergency numbers corresponding to the telephone number of the service subscriber according to the information stored in the database 110 (step S426).

According to a further aspect of the present invention, the call switching device 100 is a terminal which is located at the shortest distance from the terminal of the service subscriber among the terminals having the emergency number according to the position of the terminal having the emergency number and the terminal of the service subscriber. Try to call. In one embodiment, the call switching device obtains the cell area information belonging to the terminal of the service subscriber and the terminal having the emergency number from the VLR or the HLR, and included in the same cell area as the terminal of the service subscriber of the terminal having the emergency number. The call is attempted with the priority of the terminal (step S424). In other words, it is possible to more quickly identify the absence of the service subscriber.

In another embodiment, a call may be attempted according to a priority designated by a service subscriber among emergency number terminals. The service terminal subscriber can assign his or her emergency number and additionally prioritize the emergency numbers so that they can be placed closer to him or herself when he is absent or to switch to the terminal of the person who spends a lot of time. It can be effective.

As described in detail above, according to the present invention, there is an effect that the caller can grasp the situation of the receiver and actively cope with it even when the receiver is unable to answer the call or is in danger.

Furthermore, according to the present invention, by setting a terminal number of a person who is located in close proximity to the service subscriber or a person who spends a lot of time, the situation can be identified more quickly and accurately when the service subscriber is absent.

Although the present invention has been described with reference to the preferred embodiments described with reference to the accompanying drawings, it is not limited thereto, and various modifications may be made without departing from the spirit of the present invention. Accordingly, the invention should be construed by the appended claims, which are intended to cover such obvious variations.

Claims (12)

A database for storing a profile of a service subscriber and at least one emergency number corresponding to the telephone number of the service subscriber; A call switching device for attempting to make a call with one of emergency numbers corresponding to the telephone number stored in the storage unit when a call connection request for the service subscriber's telephone number is not answered a predetermined number of times; Call conversion system comprising a. The method of claim 1, At least one emergency number corresponding to the telephone number of the service subscriber is set from the service subscriber. The device of claim 1 or 2, wherein the call diverting device is: Call switching, characterized in that for making a call to a terminal located at the shortest distance with the terminal of the service subscriber among the terminals having the emergency number according to the location of the terminal having the emergency number and the terminal of the service subscriber. system. The device of claim 1 or 2, wherein the call diverting device is: Call switching system, characterized in that for attempting to call in accordance with the priority assigned by the service subscriber of the emergency number terminal. A key input unit for receiving a call command; A communication unit for performing wireless communication with the base station; A call processing unit generating a call connection request message according to the call command and transmitting the call connection request message through the communication unit; A storage unit for storing a telephone number of a service subscriber and at least one emergency number corresponding to the telephone number; A control unit which attempts to make a call with one of emergency numbers corresponding to the telephone number stored in the storage unit when a call connection request for the service subscriber's telephone number is not answered a predetermined number of times; Mobile communication terminal comprising a. The method of claim 5, wherein the control unit: Mobile communication terminal, characterized in that for attempting a call in accordance with a predetermined priority among the emergency numbers corresponding to the telephone number. In a call diversion system: Storing a telephone number of a service subscriber and at least one emergency number corresponding to the telephone number; Attempting to call one of the emergency numbers corresponding to the telephone number if the call connection request for the service subscriber is not answered a predetermined number of times; Call conversion method comprising a. 8. The method of claim 7, wherein said storing step is: At least one emergency number corresponding to the telephone number of the service subscriber is set from the service subscriber. The method of claim 7 or 8, wherein the call attempt step comprises: Call switching, characterized in that for making a call to a terminal located at the shortest distance with the terminal of the service subscriber among the terminals having the emergency number according to the location of the terminal having the emergency number and the terminal of the service subscriber. Way. The method of claim 7 or 8, wherein the call attempt step comprises: The call switching method of the emergency number terminal, characterized in that for attempting to call in accordance with a predetermined priority. Storing a telephone number of a service subscriber and at least one emergency number corresponding to the telephone number; Generating and transmitting a call connection request message according to a call command; Attempting to call one of the emergency numbers corresponding to the telephone number if the call connection request for the service subscriber is not answered a predetermined number of times; Call conversion method comprising a. 12. The method of claim 11 wherein the call attempt step comprises: Call switching method characterized in that the attempt to call in accordance with a predetermined priority among the emergency numbers corresponding to the phone number.

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