KR20120020236A - Mobile device for providing function of call transfer and call transfer method thereof - Google Patents

Abstract

PURPOSE: A portable terminal with a call switching function and a call switching method using the same are provided to offer the call switching function by a mobile communication network. CONSTITUTION: A wireless transceiver(310) receives a call from a first communication terminal for call connection. An input unit(360) receives a command for switching the call to connect with a second communication terminal which is a switching target of the call. A telephone number searching unit(320) searches the database in which a plurality of telephone numbers is stored. The telephone number searching unit confirms whether the phone number of the second communication terminal is a registered number. A connection switching unit(340) switches the call to connect the first communication terminal with the second communication terminal.

Description

Mobile terminal that provides call transfer function and call transfer method using same {MOBILE DEVICE FOR PROVIDING FUNCTION OF CALL TRANSFER AND CALL TRANSFER METHOD THEREOF}

The present invention relates to a portable terminal providing a call transfer function and a call transfer method using the same, and more particularly, to a portable terminal providing a call transfer function using a mobile communication network and a call transfer method using the same.

In modern society, wired or wireless communication terminals are one of the most important means of communication for exchanging information and communicating with people over long distances. In particular, the exchange of information using a wireless communication terminal is the most necessary means to do the work of the company, and it has become an important medium for active employees to work at any time outside the company.

In addition, the wired communication terminal is a communication means mainly used when a call comes from an external caller to the company's internal telephone, and most companies connect a call from an outside party with a telephone number of a specific person in the company, In other words, a wired communication terminal providing a key telephone function is used.

1 is a diagram illustrating a call switching function of a conventional wired communication terminal in a premises.

The representative wired communication terminal 130 assigned to the representative phone number of the company receives a call request from an external wired communication terminal 110 or a wireless communication terminal 120, and then receives a call request with a specific employee in the company. do.

Subsequently, the representative wired communication terminal 130 requests a call connection with the wired communication terminal 150 of a specific employee in the company to the premises exchange 140 using the call transfer function.

In this case, the external wired communication terminal 110 or the wireless communication terminal 120 and the representative wired communication terminal 130 are temporarily in a call waiting state, and the premises exchange 140 is identified with the representative wired communication terminal 130 in-house. Attempt to make a call connection with the employee's wired communication terminal 150.

The call transfer function as described above, which is generally used at present, is performed through the premises exchange 140, thereby causing a separate cost.

Accordingly, Korean Patent Laid-Open Publication No. 2003-0019966 (a device for converting an extension of a wireless subscriber network system and a method thereof) between users who have subscribed to the extension switching service of a wireless subscriber network system using a wireless local loop (WWL). A technique for providing call transfer function is disclosed.

However, in this case, a wireless subscriber network system is required to perform a call transfer between subscribers of the extension switching service, thereby additionally incurring a purchase cost. There is a very uncomfortable problem for the user in charge of work.

In order to solve the above problems of the prior art, the present invention provides a mobile terminal for providing a call switching function using a mobile communication network and a call switching method using the same.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

In order to achieve the above object, a portable terminal providing a call switching function according to an aspect of the present invention is a wireless transceiver for receiving a call (call) for a call connection from the first communication terminal, the second communication terminal that is the target of the call transfer; An input unit for receiving a command to switch the call so that the call is connected to the telephone, a telephone number search unit for searching a database in which a plurality of telephone numbers are stored, and confirming that the telephone number of the second communication terminal is a pre-registered telephone number; And a connection switching unit for switching the call so that the first communication terminal and the second communication terminal are interconnected.

In order to achieve the above object, a call switching method according to an aspect of the present invention comprises the steps of (a) receiving a call for a call connection from the first communication terminal to the second communication terminal, (b) Receiving a command for diverting the call so that a call is connected with a communication terminal; (c) retrieving a phone number of the second communication terminal from a database in which a plurality of phone numbers are stored; and (d) Based on the telephone number of the communication terminal, diverting the call to be connected with the second communication terminal; (e) notifying that the call is connected between the first communication terminal and the second communication terminal; and (f) Terminating the call connection received from the first communication terminal.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It is provided to fully inform the owner of the scope of the invention.

According to one of the problem solving means of the mobile terminal providing the call transfer function of the present invention and the call transfer method using the same, the call transfer function is provided through a mobile terminal using a mobile communication network without having an on-premises exchange or a wireless subscriber network system. Can be provided.

In addition, by using a mobile terminal that provides a call transfer function, it is possible to overcome the restrictions on the place can be greatly utilized for business purposes.

In addition, when the use of the mobile terminal providing the call transfer function is increased, it may contribute to the profit generation of the operator according to the wireless telephone fee.

1 is a diagram illustrating a call switching function of a conventional wired communication terminal in a premises.
2 is a diagram illustrating a configuration of a system for providing a call transfer function according to an embodiment of the present invention.
3 is a block diagram illustrating a configuration of a portable terminal providing a call transfer function according to an embodiment of the present invention.
4 is a diagram illustrating an input means of the portable terminal 230 according to an embodiment of the present invention.
5 is a diagram illustrating a call transfer of the mobile terminal 230 according to an embodiment of the present invention.
6 is a diagram illustrating an operation after a call transfer in the mobile terminal 230 according to an embodiment of the present invention.
7 is a flowchart illustrating a call transfer process of the mobile terminal 230 according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

In addition, when a part is said to "include" a certain component, it means that it may further include other components, except to exclude other components unless specifically stated otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

2 is a diagram illustrating a configuration of a system for providing a call transfer function according to an embodiment of the present invention.

As shown in FIG. 2, a portable terminal (hereinafter referred to as a portable terminal) 230 providing a call transfer function of the present invention is an external wired communication terminal 210 or a wireless communication terminal via a wired communication network or a mobile communication network. From 220, a call for a call with a specific person's wireless communication terminal 240 is received.

For reference, in recent years, work is often performed outside the company, such as domestic business trips and overseas business trips, and many people who operate small businesses often use their own mobile terminals as representative phones.

Hereinafter, a case in which the representative phone number of the company is set in the mobile terminal 230 and the external telephone is connected to the wireless communication terminal 240 of a specific person will be described.

The mobile terminal 230 receiving a call from an external wired communication terminal 210 or a wireless communication terminal 220 may use a mobile communication network to connect a call to a wireless communication terminal 240 of a specific person, That is, the key phone function can be performed.

In this case, when the call of the external wired communication terminal 210 or the wireless communication terminal 220 and the wireless communication terminal 240 of a specific person is connected, the portable terminal 230 transmits the call through the visual or audio output means. 230, the user may be notified, and the call with the external wired communication terminal 210 or the wireless communication terminal 220 which has been connected to the user 230 may be terminated.

3 is a block diagram illustrating a configuration of a mobile terminal 230 that provides a call transfer function according to an embodiment of the present invention.

The mobile terminal 230 according to an embodiment of the present invention includes a wireless transceiver 310, a telephone number search unit 320, a telephone number database 330, a connection switcher 340, a controller 350, and an input means ( 360 and output means 370.

In describing each component, the wireless transceiver 310 may receive a call for a call connection from the first communication terminal, and determine whether to transmit or receive information while transmitting or receiving a signal with the controller 350.

Meanwhile, the phone number search unit 320 may search from the phone number database 330 to determine whether the phone number of the second communication terminal which is the target of call switching is a registered phone number.

On the other hand, the telephone number database 330 includes the telephone number of the second communication terminal.

On the other hand, the connection switching unit 340 performs a key phone function to switch the call to be connected to the second communication terminal call connected to the first communication terminal, which is a command signal from the input means 360 of the mobile terminal 230 Once entered, it can be performed.

In addition, the connection switching unit 340 may transmit a text message to one or more of the first communication terminal and the second communication terminal, when the call of the first communication terminal cannot be switched to the second communication terminal.

For example, a message indicating that a call to the second communication terminal is not connected can be transmitted to the first communication terminal, and a message indicating that a user of the first communication terminal has requested a connection to the second communication terminal. Can be transmitted.

Meanwhile, the controller 350 may control the wireless transceiver 310, the telephone number search unit 320, the connection switcher 340, and the output means 370 described later according to various commands.

In addition, the input means 360 to be described later may transmit a control signal or the like according to a command input by the user.

On the other hand, the input unit 360 receives a user's selection to give a variety of commands or settings to the portable terminal 230.

In addition, the input means 360 may be used in combination with one or more of a keypad, a touch screen, a touch pad, and a voice recognition module.

For reference, a command may also be input through the input means 360 of the above-described operation of the connection switching unit 340.

On the other hand, the output means 370 may output information for confirming the setting or operation results of the portable terminal 230, and visual output means such as LCD, organic LED, PDP, LED, etc. provided in the portable terminal 230, One or more tactile output means using speakers, audio output devices such as earphones, and vibration motors capable of outputting various music such as ringtones, coloring, MP3, and the like may be used.

4 is a diagram illustrating an input means of the portable terminal 230 according to an embodiment of the present invention.

As illustrated in FIG. 4, the button 410 for transferring a call may be any one of several keys of the touch keypad of the mobile terminal 230.

If the mobile terminal 230 receives a call transfer request from a user of the first communication terminal while the call is connected to the first communication terminal, the mobile terminal 230 transmits the call connected to the first communication terminal to the second communication. An input of a button 410 for switching to the terminal may be received.

When a button 410 for switching a call shown in FIG. 4 is selected from a user of the mobile terminal 230, the mobile terminal 230 is a phone number database 330 in a state in which a call with the first communication terminal is temporarily suspended. You can display the phone number stored on the screen.

Thereafter, when any one of the telephone numbers displayed on the screen is selected, the mobile terminal 230 may connect the call with the first communication terminal with the selected telephone number based on the selected telephone number.

This will be described with reference to FIG. 5.

5 is a diagram illustrating a call transfer of the mobile terminal 230 according to an embodiment of the present invention.

5 is a diagram in which the mobile terminal 230 connects a call with a specific employee (using the telephone number "010-1234-5678") from a user of the first communication terminal while a call is connected with the first communication terminal. If requested.

The mobile terminal 230 temporarily suspends the call with the first communication terminal, retrieves the number "010-1234-5678" from the telephone number database 330, and displays it on the screen.

Thereafter, when the telephone number "010-1234-5678" displayed on the screen is selected by the user, the mobile terminal 230 displays the telephone number "010-" of the selected second communication terminal, as shown in FIG. 1234-5678 "may display a message asking whether to connect the call of the first communication terminal on the screen.

If "Yes" is selected by the user, the mobile terminal 230 may display on the screen that call connection switching is in progress, as shown in FIG.

After a call between the first communication terminal and the second communication terminal is connected, a message as shown in FIG. 6 may be displayed on the screen.

6 is a diagram illustrating an operation after a call transfer in the mobile terminal 230 according to an embodiment of the present invention.

The mobile terminal 230 connects a call with the first communication terminal to the second communication terminal at the request of the first communication terminal, and then relays the connection between the first communication terminal and the second communication terminal. Since there is no need to do so, a message asking whether to terminate the connection may be displayed on the screen as shown in FIG.

In addition, when it is necessary to try a three-way call with the first communication terminal and the second communication terminal, the portable terminal 230 may display a message asking whether to make a call together as shown in FIG.

In addition, when the call of the first communication terminal cannot be switched to the second communication terminal, the portable terminal 230 may transmit a text message to one or more of the first communication terminal and the second communication terminal.

For example, a message indicating that a call to the second communication terminal is not connected can be transmitted to the first communication terminal, and a message indicating that a user of the first communication terminal has requested a connection to the second communication terminal. Can be transmitted.

Thus, the user of the first communication terminal can later try to speak with the user of the second communication terminal, and the user of the second communication terminal can later contact the user of the first communication terminal.

In addition, since the user of the mobile terminal 230 does not need to notify the user of the second communication terminal that a contact has been received from the user of the first communication terminal, the work can be reduced.

For reference, the text message may be any one of a short message service (SMS), a multimedia message service (MMS), a long message service (LMS), and a unified message service (UMS).

For reference, since the call transfer function of the above-described portable terminal 230 is often received from outside such as a customer, the charge may be borne by the receiver (company side), so that the customer may not have a burden on the call charge. .

7 is a flowchart illustrating a call transfer process of the mobile terminal 230 according to an embodiment of the present invention.

In operation S710, the mobile terminal 230 is connected to an external first communication terminal.

For example, a communication terminal to which a direct telephone number of a certain business is designated may be referred to as a mobile terminal 230, and a communication terminal of a customer or a partner may be referred to as a first communication terminal.

In operation S720, the mobile terminal 230 may receive a call connection request with another communication terminal from the first communication terminal.

For example, the case where the mobile terminal 230, which is designated as the representative phone number of the company, receives a request for connection with another communication terminal in the company.

Here, the other communication terminal may be a second communication terminal, and the mobile terminal 230 may wait until a call transfer request from the first communication terminal is maintained while maintaining a currently connected call state.

In operation S730, the mobile terminal 230 may receive a call transfer request from the first communication terminal and temporarily suspend a call with the first communication terminal.

That is, the first communication terminal may be in a call waiting state with the mobile terminal 230, and a music sound, a company advertisement, specific information, etc. indicating that the call is being connected to the first communication terminal may be output while the call is suspended.

In step S740, the portable terminal 230 searches for the telephone number of the second communication terminal to which the call requested by the first communication terminal is to be switched and attempts to connect.

For reference, if the phone number of the second communication terminal is not entered in the phone number database 330 of the mobile terminal 230, the user of the mobile terminal 230 may arbitrarily input and connect.

That is, instead of switching only the telephone numbers registered in the internal exchange, the connection can be switched to all communication terminals connected through the mobile communication network or the public switched telephone network.

In operation S750, the mobile terminal 230 is connected to the second communication terminal to perform a conversation between the user of the mobile terminal 230 and the user of the second communication terminal.

For reference, the conversation may be a content of inquiring whether the user of the mobile terminal 230 notifies the user of the second communication terminal that a call is received from outside and connects the phone.

At this time, a standby sound indicating that the call is waiting may be output to the first communication terminal, and when the second communication terminal approves a call connection with the first communication terminal, a call connection sound may be output to the second communication terminal.

In step S760, the portable terminal 230 checks whether the first communication terminal and the second communication terminal are connected. If the first communication terminal and the second communication terminal is not in the connected state, it may go back to step S720 to determine whether the first communication terminal makes another call transfer request.

In step S770, when the first communication terminal and the second communication terminal are connected, the portable terminal 230 no longer needs to continue the call connection with the first communication terminal, thus ending the call with the first communication terminal. do.

In this case, if the portable terminal 230, the first communication terminal, and the second communication terminal want to make a call together, the mobile terminal 230 may maintain a call state as described above.

The mobile terminal 230 described above may correspond to various communication terminals, and in particular, the mobile terminal 230 may be applied to a wired / wireless integrated terminal which is a fixed mobile convergence (FMC) device to maximize the aforementioned effects.

In addition, the mobile terminal 230 is a PDC (Personal Digital Cellular) phone, PCS (Personal Communication Service) phone, PHS (Personal Handyphone System) phone, CDMA-2000 (1X, 3X) phone, WCDMA (Wideband CDMA) phone, Communication functions such as Dual Band / Dual Mode phones, Global Standard for Mobile (GSM) phones, Mobile Broadband System (MBS) phones, Digital Multimedia Broadcasting (DMB) phones, Smart phones, mobile phones, etc. Handheld devices that may include, public switched telephone network (PSTN) terminals, Voice over Internet Protocol (VoIP), Session Initiation Protocol (SIP), Media Gateway Control Protocol (MGCP), Media Gateway Control (MEGACO), and Personal Digital (PDA) Such as assistants, hand-held PCs, notebook computers, laptop computers, WiBro terminals, MP3 players, MD players, etc., as well as international roaming services and extended mobile communications services. IMT-2000 (International Mobile Telecommunication-2000) terminal As a portable electric and electronic device, which means all kinds of handheld-based wireless communication devices, including UMTS-based terminals, a code division multiplexing access (CDMA) module, a Bluetooth module, In order to enable location tracking through an infrared data module (Infrared Data Association), a wired / wireless LAN card, and a global positioning system (GPS), a predetermined communication module such as a wireless communication device equipped with a GPS chip may be provided. It is interpreted as a concept of collectively a terminal capable of performing a certain arithmetic operation by mounting a microprocessor capable of performing.

One embodiment of the present invention can also be implemented in the form of a recording medium containing instructions executable by a computer, such as a program module executed by the computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transmission mechanism, and includes any information delivery media.

Although the methods and apparatus of the present invention have been described in connection with specific embodiments, some or all of their components or operations may be implemented using a computer system having a general purpose hardware architecture.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

310: wireless transceiver
320: phone number search unit
330: phone number database
340: connection switching unit
350: control unit
360: input means
370 output means

Claims (8)

A mobile terminal providing a call transfer function,
A wireless transceiver for receiving a call for a call connection from a first communication terminal,
An input unit which receives a command for diverting the call so that a call is connected to a second communication terminal which is the target of the call transfer;
A telephone number retrieval unit for retrieving a database in which a plurality of telephone numbers are stored and checking whether the telephone number of the second communication terminal is a pre-registered telephone number;
A connection switching unit for switching the call so that the first communication terminal and the second communication terminal are interconnected;
Including, a mobile terminal.
The method of claim 1,
And the connection switching unit transmits a text message indicating that the call cannot be transferred to at least one of the first communication terminal and the second communication terminal when the call cannot be switched.
The method of claim 1,
Output means for outputting predetermined ring back tone or advertisement information while switching the call so that the first communication terminal and the second communication terminal are interconnected;
Further comprising, a mobile terminal.
The method of claim 3, wherein
And the output means notifies that the call is connected when the call is connected between the first communication terminal and the second communication terminal.
In the call switching method,
(a) receiving a call for a call connection from a first communication terminal to a second communication terminal,
(b) receiving a command for diverting the call so that a call is connected to the second communication terminal;
(c) retrieving a telephone number of the second communication terminal from a database in which a plurality of telephone numbers are stored;
(d) diverting the call to be connected with the second communication terminal based on the retrieved second communication terminal telephone number;
(e) notifying that the call is connected between the first communication terminal and the second communication terminal; and
(f) terminating the call connection received from the first communication terminal;
Including, call transfer method.
The method of claim 5, wherein
Outputting a ring back tone or predetermined advertisement information while switching a call so that the first communication terminal and the second communication terminal are interconnected.
Further comprising, call transfer method.
The method of claim 5, wherein
If the call cannot be diverted, sending a text message to at least one of the first communication terminal and the second communication terminal.
Further comprising, call transfer method.
The method of claim 7, wherein
The text message is any one of a short message service (SMS), a multimedia message service (MMS), a long message service (LMS) and a unified message service (UMS).

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