KR20100118656A - System and method for providing message box service to cable telephone - Google Patents

Abstract

PURPOSE: A method and a system for providing mailbox service to wired terminal are provided to supply video or voice mail box service to a user of a wired terminal which does not includes a automatic response function during one's absence. CONSTITUTION: An exchange of a wired telephone number attempts to call to a wired terminal according to the call connection request of a calling terminal(S203). If the wired terminal is in no response or call disable state, the exchange extracts mobile communication voice mail box information of wired terminal subscriber(S205~S209). The exchange forms a communication path between a mail-box service of the calling terminal and a mobile network(S211~S217). The mail-box server of the mobile communication net receives a voice mail-box message from the sending terminal through the communication path(S219).

Description

Method and system to provide mailbox service by wired terminal {SYSTEM AND METHOD FOR PROVIDING MESSAGE BOX SERVICE TO CABLE TELEPHONE}

The present invention relates to a method of providing a mailbox service to a wired terminal user, and more particularly, to a method and a system for providing a voice or video mailbox service to a user of a wired terminal that does not have an automatic answering function.

Currently, due to the widespread distribution of wired terminals with an automatic answering function, a user can check a voice message recorded by another person in the absence through the wired terminal.

Looking at the operation of the wired terminal with such an auto answering function, if the called party (that is, the wired terminal user) does not respond for a predetermined time after the call connection is requested from the calling terminal, the wired terminal activates the auto answering function in advance. The voice announcement set in the transmission to the calling terminal. The wired terminal records the caller's voice message and stores the voice message in its own voice mailbox.

However, the wired terminal having the automatic answering function can not confirm the urgent voice message to the user because the user can directly confirm the voice message only by operating the wired terminal. In addition, since the wired terminal with the auto answering function charges the caller immediately after the auto answering function is activated, the wired terminal switches to the auto answering mode even though there is no voice message to leave from the caller's point of view. Therefore, there is a disadvantage that you have to pay an unfair call fee. In addition, the user can receive the automatic answering service only by purchasing a relatively expensive wired terminal having an automatic answering function instead of a general wired terminal.

The present invention has been proposed to solve such a conventional problem, and an object of the present invention is to provide a method and system for providing a mailbox service for notifying a wired terminal user of arrival information of a new mailbox message immediately.

In addition, another object of the present invention is to provide a method and system for providing a mailbox service to a user of a wired terminal which does not have an automatic answering function.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to a first aspect of the present invention for achieving the above object, a method for providing a mailbox service to a wired terminal in a communication system comprising a wired telephone network and a mobile communication network, (a) the exchange of the wired telephone network, Attempting to connect a call to a wired terminal according to a call connection request; (b) extracting, by the exchange of the wired telephone network, mobile communication mailbox information of the wired terminal subscriber if the wired terminal is in an unresponsive or incapable call state; (c) the exchange of the wired telephone network, forming a call path between the calling terminal and a mailbox server of the mobile communication network based on the extracted mobile communication mailbox information; And (d) receiving and storing, by the mailbox server of the mobile communication network, a mailbox message from the calling terminal through the formed call path.

According to a second aspect of the present invention for achieving the above object, a system for providing a mailbox service to a wired terminal, the database for storing mailbox service subscriber-specific mobile communication mailbox information; At the call connection request of the calling terminal, the mobile terminal attempts to connect to the wired terminal and extracts the mobile communication mailbox information of the wired terminal subscriber from the database if the wired terminal is in an unresponsive or incapable call state, based on the extracted mobile communication mailbox information. An exchanger of a wireline telephone network forming a communication path between the calling terminal and a mailbox server of a mobile communication network; And a mailbox server of a mobile communication network which receives and stores a mailbox message from the calling terminal through the formed call path.

In accordance with a third aspect of the present invention for achieving the above object, an exchange apparatus for a wireline telephone network providing a mailbox service to a wired terminal by interworking with a database storing mailbox server and mailbox service subscriber mobile communication mailbox information of a mobile communication network is provided. Call connection unit for attempting to connect to the wired terminal according to the call connection request of the calling terminal; A mailbox information acquisition unit for extracting mobile communication mailbox information of the wired terminal subscriber from the database when the wired terminal is in an unresponsive or incapable call state; And a mailbox connection unit that forms a call path between the calling terminal and a mailbox server of a mobile communication network based on the extracted mobile communication mailbox information.

The present invention has an advantage of providing a video or voice mail service to a user of a wired terminal that is not equipped with an automatic answering machine and providing a prompt notification of new mailbox information left in the absence.

In addition, the present invention improves the unfair charge system that the call charges are imposed immediately after the automatic answering mode is activated in the conventional wired terminal, by listening to the caller using the announcement to the caller by charging the call charges according to the caller's choice, This has the advantage of improving caller satisfaction.

In particular, the present invention has the advantage of providing an independent mailbox service to each user even if one wired terminal is shared by a plurality of users (eg, family members). In addition, the present invention integrates and stores the missed messages of the wired and wireless terminals, thereby providing a convenient interface for the user to check and manage the missed messages of the wired terminal and the mobile communication terminal through a single mailbox.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of a system for providing a mailbox service to a wired terminal according to an embodiment of the present invention.

As shown in FIG. 1, a mailbox service providing system according to a preferred embodiment of the present invention includes a base station 120, a base station controller 130, and a switch 140 of a mobile communication network (hereinafter referred to as a “mobile communication switch”). Mailbox server 150 of the communication network, the switch 230 of the wired telephone network (hereinafter referred to as "wired switch"), the subscriber DB 240 and the gateway 300.

The base station 120 is a BTS (Base Station Transceiver Subsystem) or NodeB, and is controlled by the base station controller 130 to transmit / receive radio signals, radio channel encoding and decoding, signal strength and quality measurement, baseband signal processing, radio resource management, and Perform self maintenance functions.

The base station controller 130 assigns and releases radio channels for the mobile communication terminal 110, controls transmission output of the mobile communication terminal 110 and the base station 120, determines intercell soft handoff and hard handoff, and transcoding And vocoding, operation and maintenance functions for the base station 120, and the like. The base station controller 130 is a base station controller (BSC) or a radio network controller (RNC).

The mobile communication switch 140 includes a mobile switching center (MSC) and a serving GPRS support node (SGSN) and provides an interface function with the base station controller 130, and controls voice calls, data transmission and reception, and various additional services. In addition, the mobile communication switch 140 processes the call connection of the mobile communication terminal 110, and provides a connection function with another external network. In particular, when the mobile communication switch 140 receives a mailbox connection request signal including a mobile communication identification number from the wired switch 230, the mobile communication switch 140 performs a call connection between the mailbox server 150 and the wired switch 230.

The mailbox server 150 provides a video or voice mailbox service to subscribers of the wired terminals 210 and 220 subscribed to the mailbox service. That is, the mailbox server 150 stores the caller's voice data or image data in a mailbox corresponding to the mobile communication identification number included in the received mailbox connection request signal. In addition, the mailbox server 150 creates a text message indicating that a new mailbox message has arrived and transmits it to the mobile communication terminal 110 of the mailbox service subscriber.

The gateway 300 connects the wired switch 230 and the mobile communication switch 140 to each other. In particular, the gateway 300 converts the protocols used in the mobile communication network and the protocols used in the wired telephone network. That is, when the call connection request signal is received from the mobile communication switch 140, the gateway 300 converts the call connection request signal into a protocol commonly used in the wired telephone network and transmits it to the wired switch 230. Similarly, when a call connection request signal or a specific message is received from the wired switch 230, the gateway 300 converts the connection request signal or message into a protocol commonly used in the mobile communication network and transfers the signal to the mobile communication switch 140.

The subscriber DB 240 maps and stores the identification numbers of the wired terminals 210 and 220 registered in the mailbox service and the mobile communication identification numbers of the users of the wired terminals 210 and 220. In particular, the subscriber DB 240 maps the mobile communication identification number of each user corresponding to the identification number of the wired terminal (210, 220) when a particular wired terminal (210, 220) is shared by a plurality of users To store (see FIG. 4).

The wired switch 230 is responsible for call processing of the wired terminals 210 and 220 connected to the wired telephone network. In particular, the wired switch 230 is connected to the mobile communication switch 140 through the gateway 300 to form a communication path between the wired terminal (210, 220) and the mobile communication terminal (110). In addition, when the wired switch 230 is requested to connect to a specific wired terminal (210, 220), the wired terminal (210, 220) attempts to connect the call to the wired terminal (210, 220) for a certain time If not, or if the call is in a disabled state, the subscriber terminal 240 determines whether the wired terminal 210 or 220 is subscribed to the mailbox service. In this case, when the wired terminals 210 and 220 are subscribed to the mailbox service, the wired switch 230 stops the call connection with the wired terminals 210 and 220 and forms a call path with the mailbox server 150. .

2 is a flowchart illustrating a method for providing a mailbox service to a user of a wired terminal in a mailbox service providing system according to an exemplary embodiment of the present invention.

Hereinafter, assuming that 210 of FIG. 1 is a calling terminal 210 and 220 of FIG. 2 is a called terminal 220.

Referring to Figure 2, the wired switch 230 is requested to call the call from the calling terminal 210 to the wired terminal 220 of the called party (S201). Then, the wired switch 230 attempts to connect the call to the wired terminal 220 of the called party (S203). Subsequently, the wired switch 230 is connected to the called party's wired terminal 220 through the subscriber DB 240 when the called party's wired terminal 220 does not respond to the call connection for a predetermined time or is unavailable (eg, during a call). ) Checks whether the terminal is subscribed to the mailbox service (S205, S207).

Next, if the wired terminal 230 of the called party is a terminal subscribed to a mailbox service, the wired switch 230 stops the call connection with the called party's wired terminal 220 and the user of the wired terminal 220 is a member. The mobile communication mailbox information registered at the time of subscription is extracted from the subscriber DB 240 (S209). The mobile communication mailbox information includes a mobile communication identification number of the user and mobile communication service provider information (for example, KTF company).

Subsequently, the wired switch 230 confirms the mobile communication provider information included in the extracted mobile communication mailbox information, and transmits a mailbox connection request signal including a calling number and a mobile communication identification number to the mobile communication network of the mobile communication provider. (S211). Then, the gateway 300 receives the mailbox connection request signal and converts it to a protocol commonly used in the mobile communication network. Subsequently, the gateway 300 transmits the mailbox connection request signal to the mailbox server 150 via the operator's mobile communication switch 140 (S213).

Then, the mailbox server 150 forms a call path with the calling terminal 210 through the mobile communication switch 140, the gateway 300, and the wired switch 230, and sends the usage guide of the mailbox to the calling terminal 210. In step S215). For example, the mailbox server 150 connects to a mailbox because the customer XXX does not answer and connects to the mailbox. Please enter the number 1 you want to connect to and the call fee will be charged. To 210).

Next, the mailbox server 150 receives a video or voice-based mailbox message from the calling terminal 210 through the formed call path, and transmits the video or voice to a mailbox corresponding to the mobile communication identification number received in step S213. The message is stored (S217, S219).

Subsequently, the mailbox server 150 creates a text message indicating that a new mailbox message has arrived, and transmits the text message to the mobile communication terminal 110 of the mailbox service subscriber using a message center of the mobile communication network (S221). , S223).

According to this method, a subscriber who registers the wired terminal 210 or 220 to the mailbox service may store a caller's message in the mobile communication mailbox when a call is attempted to the wired terminal 210 or 220 in the absence of the mobile terminal. By checking the text message received by 110, it is possible to quickly check the caller's voice or video message.

Meanwhile, the wired terminals 210 and 220 may be shared by a plurality of users (eg, family members). In this case, the wired switch 230 requests the caller to select a specific user's mobile mailbox when the wired terminal 210 or 220 is unanswered or in a call-free state, and transmits the caller's voice to the selected mobile mailbox. The process of storing the video message can proceed.

3 is a flowchart illustrating a method of providing a mailbox service to a user of a wired terminal in a mailbox service providing system according to another exemplary embodiment of the present invention.

Hereinafter, portions overlapping with the description of FIG. 2 in the following description with reference to FIG. 3 will be summarized by compression, and the differences will be described.

Referring to FIG. 3, the wired switch 230 receives a call connection from the originating terminal 210 to the wired terminal 220 of the called party and attempts to connect the call to the wired terminal 220 (S301 and S303). Subsequently, the wired switch 230 detects that the called party's wired terminal 220 does not respond for a predetermined time and checks whether the wired terminal 220 is a terminal subscribed to the mailbox service through the subscriber DB 240 ( S305, S307).

Next, if the wired switch 230 is a terminal that the called party's wired terminal 220 is subscribed to the mailbox service, a plurality of mobile communication identification numbers correspond to the wired terminal 220 identification number to the subscriber DB 240. Check whether it is saved. That is, the wired switch 230 checks whether the wired terminal 220 is shared by a plurality of users through the subscriber DB 240. Subsequently, when a plurality of mobile communication identification numbers are stored corresponding to the wired terminal identification number, the wired switch 230 requests the selection of the destination mailbox to the calling terminal 210 and receives selection information of the mobile communication mailbox accordingly. (S309, S311).

4 is a diagram illustrating incoming mailbox information for each wired terminal stored in a subscriber DB according to an embodiment of the present invention. As shown in FIG. 4, the subscriber DB 240 is mapped with a wired terminal identification number 410. Stores incoming mailbox information (ie mobile communication identification number and called party name and carrier information).

When there are a plurality of mobile communication identification numbers 420 corresponding to the wired terminal identification number 410, the wired switch 230 lists a plurality of called party names 430 registered corresponding to the wired terminal identification number 410. The announcement is sent to the calling terminal 210 receives any one incoming mailbox is selected. For example, the wired switch 230 sends a message to the calling terminal 210, such as "Please select No. 1 to leave a message to Kim Hong-suk, No. 2 to leave a message to Kim Hong-min." Which destination mailbox is selected.

Referring back to FIG. 3, the wired switch 230 extracts mobile communication mailbox information corresponding to the selected called party from the subscriber DB 240 (S313). That is, the wired switch 230 extracts the mobile communication identification number 420 and the mobile carrier information 440 corresponding to the selected incoming mailbox from the subscriber DB 240. Subsequently, the wired switch 230 transmits a mailbox connection request signal to the mailbox server 150 via the gateway 300 and the mobile communication switch 140 (S315 and S317).

Then, the mailbox server 150 forms a call path with the calling terminal 210 via the mobile communication switch 140, the gateway, and the wired switch 230, and sends the mailbox to the calling terminal 210 through the formed call path. The usage announcement is transmitted (S319). The mailbox server 150 receives the voice or video mailbox message from the calling terminal 210 and stores the voice or video mailbox message in the called party's mobile communication mailbox (S321 and S323). Next, the mailbox server 150 creates a text message indicating that a new voice message has arrived and transmits it to the called party's mobile communication terminal 110 (S325 and S327).

As described above, the present invention provides a voice or video mailbox service to the user of the wired terminal (210, 220) that is not provided with the automatic answering function. In addition, the present invention proposes a method for charging a call charge according to the caller's selection to send the mailbox usage announcement to the calling terminal 210, the call charge immediately after the automatic answer mode is activated in the conventional wired terminal This has the advantage of improving the unfair fare system charged.

In particular, the present invention has an advantage of providing an independent mailbox service to each user even when one wired terminal 210 or 220 is shared by a plurality of users (eg, family members). In addition, the present invention provides a mailbox service incorporating the wired and wireless terminals (110, 210, 220), the subscriber checks the missed mailbox messages of the wired terminal (210, 220) and mobile terminal 110 through the mobile communication mailbox It provides a convenient interface to manage and manage.

5 is a diagram illustrating a configuration of an exchanger of a wireline telephone network that provides a mailbox service to a wired terminal in connection with a mailbox server of a mobile communication network according to an embodiment of the present invention.

As shown in FIG. 5, the wired switch 230 according to an embodiment of the present invention includes a call connection unit 510, a mailbox information acquisition unit 530, a mailbox connection unit 550, and a mailbox selection unit 570. do.

The call connection unit 510 performs a function of processing incoming and outgoing calls of the wired terminals 210 and 220. Particularly, when the call connection unit 510 receives a call connection from the calling terminal 210 to the called party's wired terminal 220, the call connecting unit 510 attempts to connect the call to the called party's wired terminal 220 so that the wired terminal 220 is fixed. Make sure you are not responding or not available for the time.

When the mailbox information acquisition unit 530 confirms the non-response state or the call impossible state of the called party's wired terminal 220 in the call connection unit 510, the called party's wired terminal 220 is a mailbox service in the subscriber DB 240. Check whether the terminal is subscribed to. If the called party's wired terminal 220 is a terminal subscribed to a mailbox service, the mailbox information obtaining unit 530 extracts mobile communication mailbox information corresponding to the identification number of the wired terminal 220 from the subscriber DB 240. At this time, the mailbox information acquisition unit 530 checks whether a plurality of mobile communication identification numbers corresponding to the wired terminal 220 identification number of the called party is stored in the subscriber DB 240, if the mailbox selection unit ( 570 request the process to select the destination mailbox, and accordingly extracts the selected mobile communication mailbox information from the subscriber DB (240).

The mailbox connection unit 550 checks the mobile communication identification number included in the mobile communication mailbox information extracted by the mailbox information acquisition unit 530, and transmits a mailbox connection request signal including the mobile communication identification number to the mailbox server 150 of the mobile communication network. ) To form a call path between the calling terminal 210 and the mailbox server 150. At this time, the mailbox connection unit 550 checks the mobile communication service provider information included in the mobile communication mailbox information, and transmits the mailbox connection request signal to the mailbox server 150 of the mobile communication service provider.

When the mailbox selector 570 receives a request for a process for selecting a destination mailbox from the mailbox information acquirer 530, the mailbox selector 570 transmits a plurality of destination mailbox information registered corresponding to the wired terminal identification number to the calling terminal 210. In this case, the receiving mailbox information is selected. In addition, the mailbox selector 570 transmits the selected incoming mailbox information to the mailbox information acquirer 530.

While this specification contains many features, such features should not be construed as limiting the scope of the invention or the claims. Also, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment herein can be implemented individually in various embodiments or in combination as appropriate.

Although the operations are described in a particular order in the drawings, they should not be understood as being performed in a particular order as shown, or in a sequence of successive orders, or all described actions being performed to obtain a desired result. . In certain circumstances, multitasking and parallel processing may be advantageous. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

1 is a view showing the configuration of a system for providing a mailbox service to a wired terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a method for providing a mailbox service to a user of a wired terminal in a mailbox service providing system according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a method of providing a mailbox service to a user of a wired terminal in a mailbox service providing system according to another exemplary embodiment of the present invention.

4 is a diagram illustrating incoming mailbox information for each wired terminal stored in a subscriber DB according to an embodiment of the present invention.

5 is a diagram illustrating a configuration of an exchanger of a wireline telephone network that provides a mailbox service to a wired terminal in connection with a mailbox server of a mobile communication network according to an embodiment of the present invention.

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

120: base station 130: base station controller

140: mobile communication exchange 150: Mailbox server

230: wired switch 240: subscriber DB

300: gateway

Claims (13)

A method for providing a mailbox service to a wired terminal in a communication system including a wired telephone network and a mobile communication network, (a) the exchange of the wired telephone network, attempting to connect a call to a wired terminal according to a call connection request of a calling terminal; (b) extracting, by the exchange of the wired telephone network, mobile communication mailbox information of the wired terminal subscriber if the wired terminal is in an unresponsive or incapable call state; (c) the exchange of the wired telephone network, forming a call path between the calling terminal and a mailbox server of the mobile communication network based on the extracted mobile communication mailbox information; And (d) a mailbox server of the mobile communication network, receiving and storing a mailbox message from the calling terminal through the formed call path. The method of claim 1, In step (b), Checking, by the switch of the wireline network, whether there are a plurality of subscribers subscribed to the mailbox service by the identification number of the wireline terminal; And Requesting a subscriber selection from the calling terminal and extracting mobile communication mailbox information of the selected subscriber according to a plurality of subscribers subscribed to the mailbox service, by the switch of the wireline network; How to Provide. The method according to claim 1 or 2, In step (c), Checking, by the switch of the wireline network, a mobile communication identification number in the mobile communication mailbox information; Transmitting, by the switch of the wireline telephone network, a mailbox connection request signal including the mobile communication identification number to a mailbox server of the mobile communication network; And And the exchange of the wired telephone network, forming a call path between the mailbox server of the mobile communication network and the calling terminal. The method of claim 3, wherein In step (c), The exchange of the wireline telephone network, identifying a mobile communication service provider from the mobile communication mailbox information; The switch of the wireline network, the mailbox service providing method characterized in that for transmitting the mailbox connection request signal to the confirmed mobile communication server mailbox. The method according to claim 1 or 2, In step (d), The mailbox server of the mobile communication network, comprising the step of creating a text message indicating the storage of the mailbox message and transmitting to the mobile communication terminal of the wired terminal subscribers; further comprising a. As a system that provides a mailbox service to a wired terminal, A database storing mobile communication mailbox information for each mailbox service subscriber; At the call connection request of the calling terminal, the mobile terminal attempts to connect to the wired terminal and extracts the mobile communication mailbox information of the wired terminal subscriber from the database if the wired terminal is in an unresponsive or incapable call state, based on the extracted mobile communication mailbox information. An exchanger of a wireline telephone network forming a communication path between the calling terminal and a mailbox server of a mobile communication network; And And a mailbox server in a mobile communication network for receiving and storing a mailbox message from the calling terminal through the formed call path. The method of claim 6, The switch of the wireline network, Check whether there are a plurality of subscribers subscribed to the mailbox service by the identification number of the wired terminal through the database, and if there are a plurality of subscribers subscribed to the mailbox service, request the subscriber's selection to the calling terminal, and accordingly the selected subscribers Mailbox service providing system, characterized in that for extracting mobile communication mailbox information from the database. 8. The method according to claim 6 or 7, The switch of the wireline network, The mobile communication identification number is checked in the mobile communication mailbox information, and a mailbox connection request signal including the mobile communication identification number is transmitted to a mailbox server of the mobile communication network, thereby making a call path between the mailbox server of the mobile communication network and the calling terminal. Mailbox service providing system, characterized in that forming a. The method of claim 8, The switch of the wireline network, And a mobile communication service provider from the mobile communication mailbox information, and transmitting a mailbox connection request signal to a mailbox server of the mobile communication service provider. 8. The method according to claim 6 or 7, The mailbox server of the mobile communication network, And a text message for notifying the storage of the mailbox message is created and transmitted to the mobile communication terminal of the wired terminal subscriber. Mailbox server and mailbox service of a mobile communication network A switch device of a wired telephone network that provides a mailbox service to a wired terminal by interworking with a database that stores mobile communication mailbox information for each subscriber. A call connection unit that attempts to connect a call to a wired terminal according to a call connection request of a calling terminal; A mailbox information acquisition unit for extracting mobile communication mailbox information of the wired terminal subscriber from the database when the wired terminal is in an unresponsive or incapable call state; And And a mailbox connector configured to form a call path between the calling terminal and a mailbox server of a mobile communication network based on the extracted mobile communication mailbox information. The method of claim 11, If the plurality of subscribers subscribed to the mailbox service by the identification number of the wired terminal, a mailbox selection unit for requesting the subscriber selection to the calling terminal; And the mailbox information obtaining unit extracts the mobile communication mailbox information of the subscriber selected by the calling terminal from the database. 13. The method according to claim 11 or 12, The mailbox connection portion, Confirming the mobile communication identification number and the mobile communication service provider information in the mobile communication mailbox information, and transmitting a mailbox connection request signal including the mobile communication identification number to the mailbox server of the mobile communication service provider; And a communication path is formed between the calling terminals.

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