KR100680662B1 - Automatic call forwarding system and international roaming method - Google Patents

Abstract

An overseas roaming call forwarding system and an overseas roaming method are disclosed. An overseas roaming call forwarding system according to an embodiment of the present invention includes a receiver, a processor, a communication controller, and a database storage unit. The receiving unit receives domestic customer information including information such as a subscriber's domestic telephone number and call forwarding reference time. The processing unit determines a predetermined temporary number corresponding to the domestic customer information, and when the call forwarding reference time arrives, automatically requests the mobile communication company to forward the domestic phone number to the temporary number, and the temporary number is corresponding. Connect to an overseas roaming number. The communication control unit includes a gateway and a gateway for transmitting and receiving voice data through an internet ip (internet protocol) corresponding to the overseas roaming number. The database storage unit stores the domestic customer information, the temporary number, the overseas customer information including the overseas roaming number, and the Internet ip corresponding to the overseas roaming number. The foreign roaming number is always in a connected state by making one set with the corresponding temporary number. The overseas roaming automatic call forwarding system and the overseas roaming method according to the present invention can provide a very low-cost service compared to the general overseas roaming service, and there is an advantage that the overseas roaming conversion can be made for not only a mobile phone but also a general telephone.

Description

International roaming automatic call forwarding system and international roaming method {Automatic call forwarding system and international roaming method}

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.

1 is a block diagram illustrating a foreign roaming automatic call forwarding system according to an embodiment of the present invention.

2 is a flow chart illustrating a foreign roaming method according to another embodiment of the present invention.

The present invention relates to an overseas roaming automatic call forwarding system and an overseas roaming method, and in particular, when a long-term or short-term business trip or travel abroad, a domestic mobile phone is forwarded to a specific number, and the incoming call is transferred using a relatively inexpensive Internet or international telephone network. The present invention relates to an overseas roaming automatic call forwarding system and an overseas roaming method, which can be used to make a telephone call freely from abroad by connecting to an overseas phone.

Recently, with the rapid increase in the demand for mobile communication, the demand for global roaming that can be called with a single number anywhere in the world is increasing. The domestic mobile communication network adopts a synchronous code division multiplex access (CDMA) method.

However, the part that CDMA users feel uncomfortable is the lack of services that allow subscribers to continue to receive mobile communication services on their terminals in other countries. Global System for Mobil communication (hereinafter referred to as GSM), which occupies 80% of the total mobile communication market, is designed and built in Europe to allow for smooth communication between countries. The requirements for such multi-national mobile communication services are not well reflected.

In CDMA mobile communication, only one mobile subscriber identification number (MIN) can be used for an electronic serial number (ESN). It is not possible to subscribe to a plurality of mobile communication services by using or to use a plurality of subscribers together with one mobile communication terminal.

In contrast, GSM type mobile communication uses a subscriber identity module (SIM) card incorporating a semiconductor integrated circuit. The SIM card records authentication information for each user. Even if only one terminal is used, a GSM mobile communication service of a corresponding country can be used in various countries simply by inserting different SIM cards according to each carrier.

As such, the CDMA ESN and MIN 1: 1 correspondence communication standards make it impossible to use a mobile communication service using one mobile communication terminal in a plurality of countries. Communication services have been used.

That is, international roaming service. Roaming service means that the subscriber can continue to receive the mobile communication service in the mobile communication terminal with the same phone number in other countries. There are automatic roaming services and semi-automatic roaming services.

The automatic roaming service uses a dedicated mobile communication terminal that can correspond to the frequency band and communication method of each household that the user wants to use so that the user can receive mobile communication service in various countries using only his mobile communication terminal. It is a service to make it possible.

Semi-automatic roaming service is a service that receives a mobile communication service in another country by using a rental terminal that allows incoming calls to their phone number as contracted in advance at the airport.

However, this roaming service has the following problems. First, the fee is very expensive. For example, if the caller of the first station calls the user while the user of the first station is in the second station, it must pass through both the first carrier and the second carrier and The contract between the two must pay a high fee.

As another example, when a user of a first station uses a roaming service and uses a mobile phone in a second station, if another person of the second station calls the user in the second station, the call is sent to the second station. The international call from the country to the first country is passed through the mobile telecommunication service network subscribed to by the user in the first country, and then by the international call from the first country to the second country, It is then connected to the mobile communication network of the second country with which it has been affiliated, and then only to that user in the second station via the mobile communication network of the second station. Therefore, even if the call is made in a second country, it must pay twice the rate of international calls.

In the case of the automatic roaming service, a dedicated terminal that can be used in a plurality of communication methods should be used to use the automatic roaming service. Therefore, there is a need for a new method of using roaming services at low cost.

The technical problem to be achieved by the present invention is to provide an overseas roaming automatic call forwarding system that can provide an overseas roaming service using a call forwarding system.

Another technical problem to be achieved by the present invention is to provide an overseas roaming method that can provide an overseas roaming service using a call forwarding system.

The overseas roaming call forwarding system according to an embodiment of the present invention for achieving the above technical problem includes a receiver, a processor, a communication controller, and a database storage.

The receiving unit receives domestic customer information including information such as a subscriber's domestic telephone number and call forwarding reference time. The processing unit determines a predetermined temporary number corresponding to the domestic customer information, and when the call forwarding reference time arrives, automatically requests the mobile communication company to forward the domestic phone number to the temporary number, and the temporary number is corresponding. Connect to an overseas roaming number.

The communication control unit includes a gateway and a gateway for transmitting and receiving voice data through an internet ip (internet protocol) corresponding to the overseas roaming number. The database storage unit stores the domestic customer information, the temporary number, the overseas customer information including the overseas roaming number, and the Internet ip corresponding to the overseas roaming number.

The foreign roaming number is always in a connected state by making one set with the corresponding temporary number. The receiver receives the domestic customer information using the Internet or a wired / wireless telephone, and transmits the overseas roaming number corresponding to the domestic telephone number to the subscriber.

The temporary number may use direct inward dialing (DID). The communication control unit uses a voice over internet protocol (VOIP) or an international telephone line or a direct outward dialing (DOD) line.

The communication control unit may further include a reception gateway for receiving voice data input from the outside and a reception gatekeeper for number management of the reception gateway.

The overseas roaming call forwarding system further includes a charge settlement unit for billing according to the talk time since the call forwarding is performed.

International roaming method according to an embodiment of the present invention for achieving the above another technical problem is a domestic customer information, including temporary domestic number, overseas roaming number, including domestic phone number, call forwarding reference time, etc. of the subscriber It relates to an overseas roaming method using an overseas roaming automatic call forwarding system having a database storage unit for storing information and internet ip (internet protocol) corresponding to the overseas roaming number.

The overseas roaming method includes the steps of receiving the domestic customer information, determining a predetermined temporary number corresponding to the domestic customer information, and when the call forwarding reference time arrives, automatically forwarding the domestic phone number to the mobile communication company. Requesting a call forwarding to a number, connecting the temporary number to a corresponding overseas roaming number, and transmitting voice data to an internet ip corresponding to the overseas roaming number.

The foreign roaming number is always in a connected state by making one set with the corresponding temporary number. Receiving the domestic customer information receives the domestic customer information using the Internet or a wired / wireless telephone, and transmits the overseas roaming number corresponding to the domestic telephone number to the subscriber.

The temporary number may use direct inward dialing (DID). The step of transmitting the voice data uses a voice over internet protocol (VOIP) or an international telephone line or a direct outward dialing (DOD) line. The overseas roaming method further includes a charge settlement step for billing according to the talk time since the incoming call is converted.

DETAILED DESCRIPTION In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a block diagram illustrating a foreign roaming automatic call forwarding system according to an embodiment of the present invention.

Referring to FIG. 1, an overseas roaming call forwarding system 10 according to an exemplary embodiment of the present invention includes a receiver 11, a processor 13, a communication controller 15, and a database storage unit 17.

The receiving unit 11 receives domestic customer information including information such as a subscriber's domestic phone number and call forwarding reference time. The processor 13 determines a predetermined temporary number corresponding to the domestic customer information, and when the call forwarding reference time arrives, automatically requests the mobile communication company to forward the domestic phone number to the temporary number, and the temporary number. Connect to the corresponding overseas roaming number.

The communication control unit 15 has a Kate Keeper (GK) and a gateway (GW) for transmitting and receiving voice data through the Internet ip (internet protocol) corresponding to the overseas roaming number.

The database storage unit 17 stores the domestic customer information, the temporary number, the overseas customer information including the overseas roaming number, and the internet ip corresponding to the overseas roaming number. The foreign roaming number is always in a connected state by making one set with the corresponding temporary number.

1 further discloses elements for explaining a method of roaming abroad using the overseas roaming call forwarding system 10 for convenience of description.

2 is a flow chart illustrating a foreign roaming method according to another embodiment of the present invention.

Hereinafter, the overseas roaming call forwarding system and the overseas roaming method according to the exemplary embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

First, the overseas roaming call forwarding system 10 receives domestic customer information through the receiving unit 11. (Step 210) The received domestic customer information is stored in the database storage unit 17.

Subscriber 20 is connected to the overseas roaming call forwarding system 10 by using the Internet or ARS service over the telephone. After the connection, according to the guidance screen or the guidance voice, the domestic customer information including the domestic telephone number, call forwarding reference time, etc. of the subscriber 20 is input.

The domestic customer information includes the domestic telephone number of the subscriber 20, information on the forwarding reference time indicating the start time of receiving the overseas roaming service, the overseas country and city name of the departure country, the personal information of the subscriber 20, etc. Can be.

Here, the domestic telephone number may be a telephone number of a wireless mobile communication terminal or a telephone number of a landline telephone. Therefore, not only mobile phones but also general phones can receive overseas roaming services.

The subscriber 20 may provide the domestic customer information for receiving the overseas roaming service immediately before leaving the country from the company operating the overseas roaming automatic call forwarding system 10 located in the domestic airport.

Alternatively, if the domestic roaming automatic call forwarding system (10) cannot be accessed from Korea, the company operating the overseas roaming automatic forwarding system (10) located in a local airport or a destination city of a foreign country after arriving in a foreign country, It is also possible to provide employees with domestic customer information to receive roaming services.

The processing unit 13 of the overseas roaming call forwarding system 10 determines a temporary number corresponding to the domestic telephone number of the subscriber 20 included in the domestic customer information. (Step 220) The temporary number is a database storage unit 17. ), The temporary number can use DID (Direct Inward Dialing).

The overseas roaming call forwarding system 10 stores the temporary number in the database storage unit 17 in order to transfer the domestic phone number of the subscriber 20 to the overseas roaming number. Corresponding overseas roaming numbers are always connected to the temporary number in a set, and these overseas roaming numbers are also stored in the database storage unit 17.

Temporary numbers can be assigned 300 phone numbers for E1 lines and up to 30 simultaneous calls. However, the temporary number may be operated by another communication method besides the DID.

The receiving unit 11 receives the domestic customer information using the Internet or a wired / wireless telephone, and transmits the overseas roaming number corresponding to the domestic telephone number to the subscriber 20. The operation of the receiving unit 11 is controlled by the processing unit 13.

That is, the overseas roaming automatic call forwarding system 10 of the present invention is automatically connected to the overseas roaming number and the overseas roaming number to be given to the subscriber 20, and the temporary number to forward the domestic phone number of the subscriber 20 is transferred. The data is stored in the database storage unit 17.

Then, when the subscriber 20 enters the domestic customer information, the subscriber 20 is immediately given an overseas roaming number corresponding to the domestic telephone number of the subscriber 20. At this time, the company operating the overseas roaming automatic call forwarding system 10 may lend or sell a mobile phone corresponding to the overseas roaming number to the subscriber 20.

The mobile phone corresponding to the overseas roaming number is a mobile phone that can operate in the communication method of the country in which the subscriber 20 will leave. If the subscriber 20 applies for an overseas roaming service in a foreign country, a company operating an overseas roaming automatic call forwarding system 10 may also lend or sell a mobile phone corresponding to the overseas roaming number to the subscriber 20.

The processor 13 determines whether the call forwarding reference time has arrived, and when the call forwarding reference time arrives, the mobile phone automatically requests the domestic telephone number to be forwarded to the temporary number, and the temporary number corresponds to overseas roaming. Connect to the number (steps 230-250)

When the call forwarding reference time included in the domestic customer information arrives, the processor 13 requests the mobile communication company to forward the domestic phone number to the temporary number. After the call forwarding, the call to the domestic phone number of the caller 23 is automatically forwarded to the temporary number.

Since the corresponding overseas roaming number is always connected to the temporary number, the forwarded temporary number is automatically connected to the overseas roaming number so that the telephone is connected to the subscriber 33 in the foreign country and the voice data is transmitted by the communication control unit 15. (Step 260)

The communication control unit 15 includes a gatekeeper GK and a gatekeeper GK for transmitting and receiving voice data through an Internet IP (internet protocol) corresponding to an overseas roaming number.

Although shown as an Internet network 27 in FIG. 1, the communication control unit 15 uses a voice over internet protocol (VOIP) or an international telephone line or a direct outward dialing (DOD) line to voice an overseas subscriber 33. Send or receive data.

If the connection using VIOP, the overseas roaming call forwarding system 10 stores the Internet ip of the overseas roaming number together in the database storage unit 17. When the telephone call is requested by the caller 23, the communication control unit 15 connects the internal gateway GW and the gateway 29 of the Internet IP of the overseas roaming number using the Internet network 27. . The overseas gateway 29 transmits voice data to the subscriber 33 using a wired or wireless network 31.

The communication control unit 15 of the overseas roaming call forwarding system 10 uses a voice over internet protocol (VOIP) or an international telephone line or a direct outward dialing (DOD) line. You can offer international roaming services at much lower rates.

The overseas roaming call forwarding system 10 may further include a charge settlement unit 19 for billing according to a talk time since the call forwarding is performed. The rate settlement unit 19 calculates the rate according to the talk time in real time and adds the calculated rate to the subscriber 20 when the subscriber 20 cancels the call forward while returning to Korea.

The subscriber 20 may terminate the overseas roaming service by using the Internet or ARS as in the case of subscribing the overseas roaming service. If you borrowed a mobile phone can be returned to the company operating the overseas roaming automatic call forwarding system (10) at a local airport abroad or domestic airport after returning home.

The communication controller 15 may further include a reception gate RGK for receiving voice data input from the outside and a reception gate RGW for number management of the reception gateway RGK.

Receiving gateway (RGK) is connected to the Internet VPOIP line in order to send international telephone calls from abroad to the domestic phone number, the receiving gatekeeper (RGW) manages the number of the receiving gateway (RGK).

The communication control unit 15 may receive an international telephone call originating from a foreign country by using an international telephone line or a direct outward dialing (DOD) line in the same manner as in the case of domestic calls.

As described above, optimal embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the overseas roaming automatic call forwarding system and the overseas roaming method according to the present invention can provide a very low-cost service compared to the general overseas roaming service, and there is an advantage that the overseas roaming conversion can be made for not only a mobile phone but also a general telephone.

Claims (11)

A receiving unit for receiving domestic customer information including information such as subscriber's domestic phone number and call forwarding reference time; Determine a predetermined temporary number corresponding to the domestic customer information, and when the call forwarding reference time arrives, automatically requests the mobile communication company to forward the domestic telephone number to the temporary number, and the temporary number corresponds to overseas roaming. Processing unit connected to the number; A communication control unit including a gatekeeper and a gateway for transmitting and receiving voice data through an internet ip corresponding to the overseas roaming number; And A database storage unit for storing the domestic customer information, the temporary number, the overseas customer information including the overseas roaming number, and the internet ip corresponding to the overseas roaming number; The overseas roaming number is one set with the corresponding temporary number and always stays connected, and the temporary number uses direct inward dialing (DID), The communication control unit is an overseas roaming call forwarding system, characterized in that using a voice over Internet Protocol (VOIP) or an international telephone line or a direct outward dialing (DOD) line. The method of claim 1, wherein the receiving unit, Receive the domestic customer information using the Internet or landline / wireless telephone, The overseas roaming call forwarding system, characterized in that for transmitting the overseas roaming number corresponding to the domestic phone number to the subscriber. delete delete The method of claim 1, wherein the communication control unit, A reception gateway for receiving voice data input from the outside; And And a receiving gatekeeper for number management of the receiving gateway. The method of claim 1, The overseas roaming automatic call forwarding system, characterized in that it further comprises a charge settlement unit for billing according to the use time since the call forwarding. Stores domestic customer information including information such as subscriber's domestic phone number, call forwarding reference time, overseas customer information including temporary number, overseas roaming number, and internet ip (internet protocol) corresponding to the overseas roaming number. In the overseas roaming method using an overseas roaming call forwarding system having a database storage unit, Receiving the domestic customer information; Determining a predetermined temporary number corresponding to the domestic customer information; Automatically forwarding the domestic phone number to the temporary number when the call forwarding reference time arrives and connecting the temporary number to a corresponding overseas roaming number; And Transmitting voice data to an internet ip corresponding to the overseas roaming number; The overseas roaming number is one set with the corresponding temporary number and always stays connected, and the temporary number uses direct inward dialing (DID), The transmitting of the voice data is an overseas roaming method, characterized in that it uses a voice over internet protocol (VOIP) or an international telephone line or a direct outward dialing (DOD) line. The method of claim 7, wherein receiving the domestic customer information, Receive the domestic customer information using the Internet or landline / wireless telephone, The overseas roaming method, characterized in that for transmitting the overseas roaming number corresponding to the domestic telephone number to the subscriber. delete delete The method of claim 7, wherein Overseas roaming method characterized in that it further comprises a charge settlement step for billing according to the use time after the call transfer.

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