KR100897392B1 - System and method for providing two number service by using call forwarding - Google Patents

Abstract

A system and method are provided for providing two number services using call forwarding. According to the present invention, a system for providing a two number service using a first called number and a second called number as two numbers transmits a first called information request message requesting called information about the first called number and the first called number. An originating exchange that receives a response message for a first incoming information request message and attempts to set up a call, and receives the first incoming information request message and includes the second called number according to a call forwarding of the first called number; Receiving a first home location register which transmits the response message, a second destination information request message including the first called number and the second called number from the originating exchange, and requesting routing information for the called terminal; And a destination exchange that provides the routing information in response to a request from a second home location register and the second home location register.

Call Forwarding Unconditional Service (CFU), Two Number Service, Virtual Number, Real Number

Description

System and method for providing two number service by using call forwarding

1 is a diagram illustrating a configuration of a system for providing two-number service using call forwarding according to an embodiment of the present invention.

2 is a flowchart illustrating a process of providing a two-number service using call forwarding according to an embodiment of the present invention.

3 is a flowchart illustrating a process of providing a two-number service using call forwarding according to another embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

110: outgoing exchange

120: first home location register (HLR)

130: second home location register (HLR)

140: incoming exchange

The present invention relates to a system and method for providing two-number service using call forwarding, and more particularly, to 3rd generation (3G) broadband code-division multiple access (WD). The present invention relates to a system and a method capable of reducing costs for network construction by providing a two-number service using a call forwarding service defined in a WCDMA standard.

Two-number service is an additional feature that allows one or more additional specific telephone numbers (hereinafter referred to as "virtual numbers") to be used in addition to the original registered subscriber number (hereinafter referred to as "real number") when using a communication terminal. As a service, in addition to the two-number service, it is also called a number plus service, and two or more telephones are connected to one communication terminal according to the needs of the corresponding customer (hereinafter referred to as a 'subscriber'). By assigning a number (real number, virtual number), and using it as a work number or a personal number, if necessary, this service provides a similar effect to two or more communication terminals in one communication terminal.

That is, subscribers who have received two numbers by signing up for the two-number service check the number displayed on the LCD of the communication terminal when the call is received, and whether the incoming call is a real number that is an existing number, or a virtual number that is an additional number. You can check whether or not, by setting the ringtone of the existing number and other ringtones to the additional number, it is also possible to distinguish the two incoming phone numbers.

In order to provide the two-number service described above, in the conventional 2G, when an incoming call comes to a virtual number using an intelligent network, the first HLR inquires the real number mapped to the virtual number to the intelligent network and attempts to find the real number.

However, the intelligent network is specialized for each service provider that provides mobile communication service. Since the two-number service is not defined in the WCDMA standard in 3G, the content of the service when providing two-number service using the intelligent network in 3G is different. In case of change, there may be a problem of specification when changing existing network or roaming overseas, and there is a problem of cost incurred by network change.

An object of the present invention is to simplify a call processing procedure for providing two number service and to reduce cost for network construction through a system and method for providing two number service using call forwarding.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, according to an embodiment of the present invention, a system for providing two-number service using a first called number and a second called number as two numbers may include requesting incoming call information for the first called number. An originating exchange that transmits a first destination information request message, receives a response message to the first destination information request message, and attempts to set up a call, receives the first destination information request message, and receives the first destination number; Receiving a first home location register which transmits the response message including the second called number according to the switching, and a second called information request message including the first called number and the second called number from the calling exchange; And the routing information according to the request from the second home location register and the second home location register for requesting routing information for the called terminal. For providing it includes a destination exchange.
In order to achieve the above object, according to an embodiment of the present invention, a method for providing a two number service using a first called number and a second called number as two numbers includes an outgoing call originated by the first called number from a calling terminal. (A) receiving the second call, obtaining the second called number according to the call forwarding setting of the first called number, and obtaining routing information about the called terminal corresponding to the second called number. (c) step.

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In order to achieve the above object, according to another embodiment of the present invention, a method for providing a two-numbered service using a first called number and a second called number as two numbers in a wideband code division multiple access (WCDMA) environment is provided. When receiving an outgoing call originated by the first called number from the call, the call is forwarded to the second called number and the call is set to the called terminal by using routing information for the second called number, and the calling terminal is called. When receiving an outgoing call originated by the second called number from the call, the call to the called terminal is set using the routing information for the second called number.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims.

Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings of a configuration diagram or a processing flowchart for explaining a system and method for providing a two-number service using call forwarding according to embodiments of the present invention.

At this point, it will be appreciated that each configuration of the process flow diagrams and combinations of flow chart figures may be performed by computer program instructions.

Since these computer program instructions may be mounted on a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, those instructions executed through the processor of the computer or other programmable data processing equipment may be described in the flowchart configuration (s). It creates a means to perform the functions.

These computer program instructions may be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner, and thus the computer usable or computer readable memory. It is also possible for the instructions stored in to produce an article of manufacture containing instruction means for performing the functions described in the flowchart configuration (s).

Computer program instructions It can also be mounted on a computer or other programmable data processing equipment, so a series of operating steps are performed on the computer or other programmable data processing equipment to create a computer-implemented process to perform the computer or other programmable data processing equipment. It is also possible for the instructions to provide steps for performing the functions described in the flowchart configuration (s).

In addition, each arrangement may represent a module, segment, or portion of code that includes one or more executable instructions for executing a specified logical function (s).

It should also be noted that in some alternative implementations, the functions noted in the configurations may occur out of order.

For example, the two components shown in succession may in fact be performed substantially simultaneously or the components may sometimes be performed in the reverse order, depending on the function in question.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, in the present invention, it is assumed that a virtual number is set to call forwarding to a real number.

1 is a diagram illustrating a configuration of a system for providing two-number service using call forwarding according to an embodiment of the present invention.

The system 100 for providing a two-number service using call forwarding according to an embodiment of the present invention transmits a first incoming information request message for requesting incoming information for a virtual number, and transmits a first incoming information request message for the first incoming information request message. Receiving a response message and receiving the first incoming information request message from the originating exchange 110, the originating exchange 110 to attempt to establish a call, the response message including the real number according to the real number call forwarding of the virtual number Receives a second destination information request message including the virtual number and the real number from the first home location register (HLR) 120, the originating exchange 110 to transmit the; A second HLR 130 requesting routing information and a destination exchange 140 providing the routing information in response to a request of the second HLR 130.

Here, as an example of the incoming information request message, a SendRountingInfo (hereinafter referred to as SRI) message defined in the WCDMA standard may be used, and an SRI Ack may be used as the incoming information response message.

In addition, as an example of the routing information request message, a ProvideRoamingNumber (hereinafter, referred to as PRN) message defined in the WCDMA standard may be used, and the routing information response message may use a PRN Ack.

Hereinafter, to facilitate the description of the present invention, a two-number service using a call forwarding service according to an embodiment of the present invention using the above-described message (SRI message, SRI response message, PRN message and RPN response message). To explain how to provide.

For reference, in the present invention, the called number includes at least one of a virtual number and a real number, and the outgoing exchange 110 includes at least one of the first HLR 120 and the second HLR 130 in which the virtual number is accommodated. Send an SRI message to one HLR and receive an SRI response message for the SRI message.

Hereinafter, the HLR containing the virtual number is referred to as the first HLR 120, and the HLR containing the real number is referred to as the second HLR 130.

2 is a flowchart illustrating a process of providing a two-number service using call forwarding according to an embodiment of the present invention.

For convenience of description, it will be described with reference to the configuration of the system 100 shown in FIG. 1, and for reference, it is assumed that the caller attempts to make a call using the virtual number of the other party subscribed to the two-number service.

First, in order to obtain routing information of a virtual number, the originating switch 110 in which the calling party's calling number roams transmits a first SRI message including the virtual number to the first HLR 120 (S201).

In this case, the virtual number included in the first incoming information request message is a mobile station International ISDN Number (hereinafter referred to as MSISDN).

After S201, the first HLR 120 receives the first SRI message from the originating exchange 110, the first SRI response message containing the real number according to the real number call forwarding setting of the virtual number originating exchange 110 (S202).

In this case, the real number included in the first SRI response message means RoutingInfo.

After S202, the originating exchange 110 receives the first SRI response message from the first HLR 120 and transmits a second SRI message including the real number and the virtual number to the second HLR 130 (S203). .

At this time, the real number is a terminal subscriber number (MSISDN), the virtual number is a normal number (GenericNumber).

After S203, the second HLR 130 receives the second SRI message from the originating exchange 110 and transmits the PRN message including the real number and the virtual number to the destination exchange 140 roaming the real number (S204). .

At this time, the real number is a terminal subscriber number (MSISDN), the virtual number is a normal number (GenericNumber).

After S204, the destination exchange 140 receives the PRN message from the second HLR 130 and sends the PRN response message including the routing information for the real number (hereinafter referred to as MSRN) to the second HLR. It transmits to 130 (S205).

After S205, the second HLR 130 receives the PRN response message from the destination exchange 140 and transmits a second SRI response message including routing information (MSRN) for the real number to the calling exchange 110 ( S206).

After S206, the originating exchange 110 receives the second SRI response message from the second HLR 130 and establishes a call with the destination exchange 140 through the routing information for the real number (Initial Adress Message, hereinafter referred to as IAM). (S207).

3 is a flowchart illustrating a process of providing a two-number service using call forwarding according to another embodiment of the present invention.

For convenience of explanation, it will be described with reference to the configuration of the system 100 shown in FIG.

In order to obtain routing information of the real number at the originating exchange 110, an SRI message including the real number is transmitted to the second HLR (S301).

At this time, the real number is a terminal subscriber number (MSISDN).

After S301, the second HLR 130 receives the SRI message from the originating exchange 110, and transmits the PRN message including the real number to the incoming exchange 140 roaming the real number (S302).

At this time, the real number is a terminal subscriber number (MSISDN).

After S302, the destination exchange 140 receives the PRN message from the second HLR 130 and transmits a PRN response message including the routing information (MSRN) for the real number to the second HLR 130 (S303). .

After S303, the second HLR 130 receives the PRN response message from the destination exchange 140 and transmits an SRI response message including routing information (MSRN) for the real number to the calling exchange 110 (S304). .

After S304, the originating exchange 110 receives the SRI response message from the second HLR 130 and attempts to establish a call (IAM) with the destination exchange 140 through routing information for the real number (S305).

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. Therefore, the virtual number and the real number described as an example in the present invention may be understood as the first called number and the second called number of the called terminal, respectively, and the user of the called terminal transmits the first called number and the second called number. You can be provided with a two-number service.

According to the system and method for providing a two-number service using the call forwarding service of the present invention as described above, there are one or more of the following effects.

There is an advantage of simplifying the call processing procedure by providing a two-number service by using the call forwarding service defined in the 3G WCDMA standard (3GPP).

In addition, there is an advantage in reducing the network construction cost to provide a two-number service.

Claims (11)

In the system for providing a two-number service using the first called number and the second called number as two numbers, An originating exchange that transmits a first incoming information request message requesting incoming information for the first called number and receives a response message to the first incoming information request message and attempts to set up a call; A first home location register for receiving the first incoming information request message and transmitting the response message including the second called number according to the call forwarding of the first called number; A second home location register receiving a second incoming information request message including the first called number and the second called number from the calling exchange, and requesting routing information for the called terminal; And And a destination exchange providing the routing information in response to a request from the second home location register. The method of claim 1, And the second home location register receives the routing information from the destination exchange, and then transmits a response message to the second destination information request message to the originating exchange. The method of claim 1, And the first incoming information request message and the second incoming information request message are 'SendRoundInfo' messages defined in a wideband code division multiple access scheme. The method of claim 1, And the second home location register requests the routing information using a 'ProvideRoamingNumber' message defined in a wideband code division multiple access scheme. What is claimed is: 1. A method of providing a two number service using a first called number and a second called number as two numbers, (A) receiving an outgoing call originated by the first called number from an originating terminal; (B) acquiring the second called number according to the call forwarding setting of the first called number; And And (c) acquiring routing information for the called terminal corresponding to the second called number. 2. The method of claim 5, And (d) establishing a call between the calling terminal and the called terminal by using the obtained routing information. The method of claim 5, wherein In the step (b), the second called number is obtained by using a 'SendRoundInfo' message defined in a wideband code division multiple access scheme. The method of claim 5, In the step (c), the routing information is obtained by using a 'ProvideRoamingNumber' message defined in a wideband code division multiple access scheme. A method for providing a two number service using a first called number and a second called number as two numbers in a wideband code division multiple access (WCDMA) environment, When receiving an outgoing call originated by the first called number from the calling terminal, the call is forwarded to the second called number and the call is set to the called terminal using routing information for the second called number. When receiving an outgoing call originated by the second called number from the calling terminal, providing a two-number service using a call forwarding to set up a call to a called terminal by using the routing information for the second called number. How to. The method of claim 9, The call forwarding is performed using a 'SendRoundInfo' message defined in the wideband code division multiple access scheme. The method of claim 9 or 10, The routing information is obtained by using a 'ProvideRoamingNumber' message defined in the wideband code division multiple access scheme.

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