JP2007060141A - Separate charging communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To separately charge a usage fee related to communication by acquiring a management ID corresponding to a prefix code and a terminal ID in a communication network.
A communication terminal includes a selective transmission unit that selects a prefix code together with an incoming call ID, and a transmission unit that transmits the prefix code and the incoming call ID and transmits the outgoing call ID to a relay device. The apparatus 10 includes a communication establishment unit 103 that connects the communication terminal 50a and another communication terminal 50b, a storage unit 105 that stores a management ID in association with each prefix code corresponding to the terminal ID, and the received transmission ID And a management ID acquisition unit 102 that acquires a management ID corresponding to the prefix code, a communication detection unit 104 that detects the start and / or end of communication for each management ID, and a management ID according to the start and / or end of communication The charge calculation means 106 for calculating the charge for each is provided.
[Selection] Figure 2

Description

  The present invention relates to a communication system including a communication terminal and a relay device. More specifically, the present invention relates to a separation capable of separately charging a usage fee for communication by acquiring a management ID corresponding to a prefix code and a terminal ID. The present invention relates to a billing communication system.

In a conventional mobile phone communication system, when using a mobile phone, a system is proposed in which private and business use can be sorted with simple operations, and business charges can be automatically charged and charged to the company. Has been.
In such a billing system, a dedicated software is downloaded to an individual's mobile phone, and the software is started before using it for business, whereby a charge for a usage fee is charged to the company.
In this system, since outgoing calls from mobile phones are transferred via a dedicated telephone exchange, the other party's phone number is displayed on the other side. You're calling from a company landline.

However, in the conventional billing system as described above, the company side has a dedicated telephone exchange to transfer incoming calls from a mobile phone. It was realized only for voice communication.
For this reason, there existed the following faults.
Dedicated equipment is required.
The user is charged twice.
The phone number of the mobile phone is only one (send to the other party with the fixed phone number assigned to the exchange in the process of transferring from [Exclusive to Public]).
All transfer service users have the same number.
Since communication between 3G terminals is [public-private-public], communication is possible only by voice.
Billing cannot be separated when using services other than voice communications.

In view of this, various proposals have been made so far regarding a technique in which a terminal or the like in a communication system is assigned a plurality of numbers and charging processing is performed for each number.
For example, there has been proposed a wireless communication apparatus that uses one wireless communication apparatus by using a plurality of mobile station identification numbers and can charge a call charge for each mobile station identification number (see, for example, Patent Document 1). .)
In addition, by registering a plurality of IDs in one mobile station, an outgoing / incoming control method has been proposed that can be done by carrying only one mobile station that has been individually provided (for example, Patent Documents). 2).

Japanese Patent Laid-Open No. 06-070368 (page 1-7, FIG. 1) JP 2000-261545 A (page 1-4, FIG. 1)

However, the conventional charging system as described above has a problem in that the configuration and control on the terminal side are complicated, and it is difficult to apply to existing mobile phones and the like and lacks versatility and expandability. It was.
For example, in the wireless communication device described in Patent Document 1, the wireless communication device itself stores a plurality of mobile station identification numbers, and performs control such as calling based on the mobile station identification numbers. The billing process was performed every time.
For this reason, the control on the terminal (wireless communication apparatus) side is the center, and the configuration and control of the terminal become complicated, which has been a cause of hindering versatility and expandability.
Also, in the transmission control method described in Patent Document 2, a plurality of IDs are stored together with a telephone directory and outgoing / incoming call history in each mobile station that is a terminal, and by selecting one of the IDs when making a call, The billing process for the ID is performed, and the same problem occurs.

  The present invention has been proposed in order to solve the above-described problems of the conventional technology, and the configuration on the terminal side is complicated by acquiring the management ID corresponding to the prefix code and the terminal ID. Therefore, it is possible to separately charge a usage fee related to communication, and to provide a separate charging communication system excellent in versatility and expandability.

  In order to achieve the above object, a separate charging communication system according to the present invention is a communication system in which a communication terminal having a terminal ID and a relay apparatus are connected via a communication line, as described in claim 1. In response to an input operation, the communication terminal selects another terminal ID as an incoming call ID and selects a prefix code, and transmits a prefix code and an incoming call ID selected by the selective transmission means. Transmitting means for transmitting the terminal ID as a transmission ID to the relay apparatus, and the relay apparatus connects the communication terminal and another communication terminal having the incoming ID selected by the selective transmission means. A communication establishing means for performing, a storage means for storing an arbitrary management ID in association with one or more prefix codes corresponding to one terminal ID, A management ID acquisition unit that searches the storage unit and acquires a management ID corresponding to the transmission ID and prefix code received from the communication terminal, and a communication detection that detects the start and / or end of communication for each acquired management ID And a charge calculation means for calculating a communication charge for each management ID in accordance with the start and / or end of communication.

According to the separate charging communication system of the present invention having such a configuration, a communication terminal can make a call by attaching a prefix code to another terminal ID as a destination.
In response to this, the relay apparatus performs communication after using the management ID corresponding to the prefix code as the ID of the transmitting terminal.
Therefore, communication can be performed by changing the terminal ID such as the telephone number or mail address of the calling terminal to another different ID without changing the configuration / control on the terminal side.
When there is no prefix code, communication can be performed after the management ID corresponding to the default is set as the transmission terminal ID.
For this reason, as if one communication terminal possesses a plurality of IDs, it becomes possible to perform management such as accounting processing separately for each of the plurality of IDs.
For example, communication terminals such as mobile phones that are owned can be used properly according to the purpose, such as company use or private use.

  In the separate charging communication system according to the present invention, as described in claim 2, the relay device transmits the management ID acquired by the management ID acquisition unit to another communication terminal connected by the communication establishment unit. The transmission means for transmitting is configured.

According to the separate charging communication system of the present invention having such a configuration, when communication is performed, the acquired management ID is notified to the receiving terminal as the ID of the transmitting terminal.
For this reason, at the receiving terminal, it can be confirmed in advance, for example, from whom the call originates, whether it is a work phone, or a private phone.
Further, even when a response cannot be made when an incoming call is received, it is possible to confirm the sender, purpose, etc. later by recording a log.

  Furthermore, in the separate charging communication system of the present invention, as described in claim 3, the communication terminal selects the management ID of another communication terminal as an incoming call ID in response to an input operation. At the same time, the transmission means transmits the incoming ID selected by the selective transmission means to the relay device, and the relay device associates at least one terminal ID with one management ID. A terminal ID acquiring unit that searches the storage unit and acquires a terminal ID corresponding to the incoming ID received from the communication terminal, wherein the communication probability unit includes the communication terminal and the terminal ID acquiring unit. It is set as the structure which connects with the communication terminal with terminal ID acquired by (1).

According to the separate charging communication system of the present invention having such a configuration, when the caller knows the management ID of the receiving terminal in advance, the management ID instead of the terminal ID such as the telephone number originally owned by the receiving terminal is used. It is also possible to communicate with the receiving terminal by selecting and making a call.
Therefore, for example, in a mobile phone system, even if the phone number of a terminal is changed due to a change of a communication carrier, the phone numbers before and after the change are set in association with the same management ID, and the management ID is set as a common phone By using a number, it is possible to use the phone number without changing it (number portability).

  According to a fourth aspect of the present invention, there is provided a separate charging relay apparatus, which is a relay apparatus connected to a communication terminal having a terminal ID via a communication line, as defined in claim 4, wherein the communication terminal and the communication terminal A communication establishment means for connecting to another selected communication terminal, a prefix code selected in response to an input operation and an incoming ID, a prefix receiving means for receiving an outgoing ID, and a single terminal ID A storage unit that stores an arbitrary management ID in association with each corresponding one or more prefix codes; a management ID acquisition unit that searches the storage unit and acquires a management ID corresponding to the received transmission ID and prefix code; , Communication detection means for detecting the start and / or end of communication for each acquired management ID, and for each management ID according to the start and / or end of communication It is constituted and a charge calculation unit for calculating a communication charge.

According to the separate charging relay apparatus of the present invention having such a configuration, communication between terminals is established after a management ID is assigned in advance.
Accordingly, since it can be set as if a single communication terminal possesses a plurality of IDs, management such as billing processing can be performed separately for each of the plurality of IDs.
In addition, by using the relay device as a host computer or server, a network that centrally controls communication terminals connected to the communication network can be constructed, and a system with excellent expandability and maintainability can be constructed. It becomes possible.

  According to another aspect of the present invention, there is provided a separate charging method in a communication system in which a communication terminal having a terminal ID and a relay device are connected via a communication line. A relay apparatus is a separate charging method by a communication system comprising a communication establishment means, a prefix reception means, a management ID acquisition means, a communication detection means, and a charge calculation means, wherein the communication establishment means comprises the communication terminal And a step of connecting with another communication terminal selected by the communication terminal, and the prefix receiving means receives the prefix code and the incoming call ID selected according to the input operation, and receives the outgoing call ID A step of acquiring a management ID corresponding to the received transmission ID and prefix code; The communication detection means includes a step of detecting the start and / or end of communication for each acquired management ID and calculating a communication time, and the charge calculation means includes calculating a charge corresponding to at least the communication time. As a configuration.

According to the separation charging method of the present invention having such a configuration, communication is performed after the management ID corresponding to the prefix code is set as the ID of the calling terminal.
Therefore, communication can be performed by originally changing the terminal ID such as a telephone number or mail address of the transmitting terminal to another different ID.
For this reason, since it can be set as if a single communication terminal has a plurality of IDs, management such as billing processing can be performed separately for each of the plurality of IDs.
For example, communication terminals such as mobile phones that are owned can be used properly according to the purpose, such as company use or private use.

  According to another aspect of the present invention, there is provided a separate charging program in a communication system in which a communication terminal having a terminal ID and a relay device are connected via a communication line, as described in claim 6. A means for connecting the computer constituting the relay apparatus to the communication terminal and another communication terminal selected by the communication terminal; a means for receiving a prefix code and an incoming ID, and a means for receiving an outgoing ID; Means for storing an arbitrary management ID in association with each of one or more prefix codes corresponding to the terminal ID, searching the storage means, and obtaining a management ID corresponding to the transmission ID and prefix code received from the communication terminal Means, means for detecting the start and / or end of communication for each acquired management ID, and a communication fee for each management ID. There a program for functioning as means for.

Thus, the present invention can also be provided as a program.
As a result, the present invention can be realized by installing a program in an information processing device such as a workstation, a server, or a personal computer as well as a relay device such as an exchange or a router, and the separation is excellent in versatility and expandability. It can be provided as a billing program.

According to the present invention, when a caller adds a prefix code and makes a call, the billing process can be performed using the ID corresponding to the prefix code as the self ID.
As a result, it is possible to perform charging processing in units of IDs without changing the configuration and control on the terminal side, and it is possible to use communications according to applications such as corporate and private use.
Further, according to the present invention, it is possible to realize an ID portability service in which the ID of the communication terminal does not change even if the communication carrier changes.

A preferred embodiment of the present invention will be described below with reference to FIGS.
Here, the separate charging communication system of the present embodiment shown below is realized by processing, means, and functions executed by a computer in accordance with instructions of a program (software). The program sends a command to each component of the computer to perform predetermined processing and functions as shown below. That is, each processing / means in the communication system of the present embodiment is realized by specific means in which a program and a computer cooperate.
Note that all or part of the program is provided by, for example, a magnetic disk, optical disk, semiconductor memory, or any other computer-readable recording medium, and the program read from the recording medium is installed in the computer and executed. The The program can also be loaded and executed directly on a computer through a communication line without using a recording medium.

[First embodiment]
First, the configuration of the separate charging communication system according to the first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic configuration diagram showing an outline of a separate charging communication system according to the first embodiment of the present invention. FIG. 2 is a block diagram showing a relay device constituting the separate charging communication system according to the first embodiment of the present invention. FIG. 3 is a configuration diagram of a communication terminal constituting the separate charging communication system according to the first embodiment of the present invention.

[Communication system 1]
As shown in FIG. 1, the separate charging communication system 1 of the present invention includes a relay device 10 and a communication terminal 50. The relay device 10 is a device such as an electronic exchange or a router, and the communication terminal 50 is a conventionally used communication terminal such as a mobile phone.
The communication network 100 is an abbreviation for a communication network such as a mobile phone communication network, a PSTN, and an IP telephone network, and a plurality of relay devices 10 are connected to each other through a communication line.
Usually, when performing communication, the transmitting terminal 50a selects an ID such as the number of the receiving terminal 50b to perform transmission. This is received by the relay device 10a, and a communication path with the receiving terminal 50b is established through connection with the optimal transmission route in the communication network 100 and the relay device 10b.
In the separate billing communication system of the present invention, when making a call, the caller terminal 50a transmits a prefix code, and the relay device 10a receiving it extracts the management ID registered in advance, and sends the management ID to the caller. ID is notified, and separate accounting is performed for each management ID.

[Relay device 10]
As illustrated in FIG. 2, the relay apparatus 10 includes a prefix receiving unit 101, a management ID acquisition unit 102, a communication establishment unit 103, a communication detection unit 104, a storage unit 105, a fee calculation unit 106, and a terminal ID acquisition unit 107.
The prefix receiving means receives the prefix code and the incoming call ID transmitted from the calling terminal 50a. Further, by receiving it together with the transmission ID, it is possible to search / acquire subsequent management IDs.
The management ID acquisition unit 102 acquires from the storage unit 105 the ID corresponding to the calling terminal ID and prefix code obtained by the prefix receiving unit.

The communication establishing means 103 establishes a communication path between the transmitting terminal 50a and the receiving terminal 50b. Normally, the relay device 10a receives the ID such as the number of the receiving terminal 50b selected by the transmitting terminal 50a, detects the optimum transmission route within the communication network 100, and is connected to the receiving terminal 50b via the plurality of relay devices 10. The
The communication detection unit 104 detects the start and end of communication, and enables calculation of the time required for communication. By cooperating with the charge calculation unit 106, it is possible to perform a charging process according to the communication time or the like.
The storage means 105 registers a management ID corresponding to the terminal ID and prefix code in advance by setting. Specifically, the ID and prefix code of the terminal are received from the transmitting terminal 50a, and the management ID corresponding to these is acquired by searching the storage means 105. Communication is performed using the acquired management ID as the ID of the calling terminal, and in cooperation with the charge calculation means 106, billing processing for each management ID is enabled.

The fee calculation means 106 calculates a usage fee related to the communication according to the communication time or the like. As described above, since the communication fee for each management ID can be calculated, it is possible to perform separate charging for each management ID by setting and using a plurality of management IDs in one communication terminal 50. .
The terminal ID acquisition unit 107 searches the storage unit 105 to acquire the ID of the receiving terminal corresponding to the management ID transmitted as the incoming ID from the transmitting terminal. ID portability described later is enabled.

[Communication terminal 50]
The communication terminal 50 is connected to the relay device 10 by wireless or wired.
Further, as shown in FIG. 3, the communication terminal 50 includes a selective transmission unit 501 and a transmission unit 502.
The selective transmission means 501 selects and inputs the ID and prefix code of the receiving terminal 50b when the transmitting terminal 50a makes a call. As a result, the ID of the incoming terminal 50b is transmitted to the relay device 10a, and the optimum transmission route to the incoming terminal 50b is selected. In addition, the prefix code selected by the transmission terminal 50a is also attached to the incoming ID and transmitted, and used as data for acquiring the management ID.
As described above, the transmitting unit 502 transmits not only the ID of the receiving terminal 50b but also the ID of the transmitting terminal 50a and the selected prefix code when making a call.

Next, the operation of the separate charging communication system according to the first embodiment of the present invention will be described with reference to FIG. 4 and FIG.
FIG. 4 is a flowchart showing the operation of the separate charging communication system according to the first embodiment of the present invention. FIG. 5 is an ID management table diagram stored in the relay device constituting the separate charging communication system according to the first embodiment of the present invention.

First, the calling terminal 50a adds a prefix code before the called number (called terminal ID) and makes a call with “prefix + called number” (step A1).
From the calling terminal 50a, the incoming call number necessary for connection is transmitted, and at the same time, the prefix code is transmitted to the relay device 10a. Further, the calling number (calling terminal ID) is also transmitted (step A2).
The transmitted incoming call number is data necessary for establishing an optimal communication path among the calling terminal 50a, the relay device 10, and the receiving terminal 50b, but is not an important element for specifying the present invention. Detailed explanation is omitted.

The relay device 10a searches the storage means 105 based on the prefix code and the transmission number received from the transmission terminal 50a (step A3), and acquires a management ID that becomes a new transmission number (step A4). An ID management table as shown in FIG. 5 is stored in the storage means 105. For example, a prefix code “XX” is added from a communication terminal having a terminal ID of “0x0-123-4567” as a transmission number. When a call is made, the table is searched and a new number (management ID) such as “03-XXXX-XXXX” is acquired.
When a call is received at step A1 and is received at the receiving terminal 50b, the receiving terminal 50b is notified of the new number acquired at step A4 (see “Management ID” in FIG. 5) as the calling number (step A5). ). The receiving terminal 50b can confirm such information on a liquid crystal screen or the like.

  Then, when the incoming terminal 50b responds, communication with the outgoing terminal 50a is started, and charging processing is performed at a predetermined timing. Here, charging is performed separately for each new number (management ID) acquired in step A4 (step A6). For example, referring to FIG. 5, when a communication terminal having a terminal ID of “0x0-123-4567” is added with a prefix code “XX” and is transmitted and communicated, “ABC Co., Ltd.” is designated. The system is charged, and when a prefix code “ΔΔ” is added from the same terminal and transmission / communication is performed, “Taro Yamada” is charged.

As described above, according to the separated charging communication system of the first embodiment, one communication terminal 50 can be used as if it has a plurality of IDs, and the usage fee can be separated for each ID used. Is possible.
For example, when the caller owns the communication terminal 50, the caller can be notified of the company number by registering an arbitrary prefix code and company number in advance. You can know the purpose of the communication, whether it is private or corporate.
Further, since charging is performed using the acquired individual management ID, it is possible to perform separate charging according to the application. For example, by registering multiple combinations of prefix codes and management IDs, you can change the display of the calling number to the recipient, such as a home phone number, company mobile phone number, company representative phone number, etc. can do.

[Second Embodiment]
Next, the operation of the separate charging communication system according to the second embodiment of the present invention will be described with reference to FIG.
FIG. 6 is a flowchart showing the operation of the separate charging communication system according to the second embodiment of the present invention.
B1 to B4 are operation procedures in the communication terminal 50 having the memory dial function, C1 to C3 are operation procedures in the communication system having the Internet access function, and D1 to D3 are operations in the communication system having the mail function. Each procedure is shown.

When making a call by selecting a partner from the memory (step B1), select a number by the memory dial function of the communication terminal 50a (step B2), select a prefix code such as corporate / private (step B3), and make a call. (Step B4). In response to these operations, the relay device 10 acquires the management ID as a transmission number, performs notification, and performs a separate charging process.
Further, when performing Internet access (step C1), a prefix code and an arbitrary URL are input (step C2), and a connection is made (step C3). Charges can be made.
Further, when mail transmission / reception is performed (step D1), a prefix code and the other party's mail address are input (step D2), and mail transmission / reception is performed (step D3), so that a separate charge and management ID notification are performed. Can do.

  As described above, according to the separate charging communication system of the present embodiment, not only the same effects as those of the first embodiment described above are exhibited, but also it can be applied to various communication forms such as the Internet and mail services. .

[Third embodiment]
Next, ID portability of the separate charging communication system according to the third embodiment of the present invention will be described with reference to FIG.
FIG. 7 is a flowchart showing an ID portability operation of the separate charging communication system according to the third embodiment of the present invention.
First, the transmitting terminal 50a inputs a management ID (telephone number or the like) registered in advance as an incoming call number and makes a call (step E1). As a result, the management ID is transmitted to the relay device 10 (step E2).
The relay device 10 searches for a corresponding terminal ID (telephone number or the like) based on the received management ID (step E3).

As a result of the search, a terminal ID is acquired (step E4), and a connection is made to the communication terminal 50b having the ID (step E5).
And if it responds at a receiving terminal, communication will be started (step E6).
As described above, as a specific example, when using a mobile phone service, even if the telecommunications carrier changes and the owned phone number is changed, the phone numbers before and after the change are registered corresponding to the same management ID. This makes it possible to continue using the management ID as a telephone number.

  As described above, according to the separate charging communication system of the third embodiment, not only the same effect as the previous embodiment is exhibited, but also services such as number portability can be used.

As described above, the separated charging communication system of the present invention has been described with reference to the preferred embodiment. However, the separated charging communication system according to the present invention is not limited to the above-described embodiment, and variously within the scope of the present invention. Needless to say, it is possible to implement this change.
For example, the separate billing communication system of the present invention can be used for various payment systems that charge and pay charges online, thereby making payments according to usage such as corporate and private use.
In addition, the relay device of the present invention does not include a database used for storage means and fee calculation means, but may be connected to the outside through a line.
Further, the prefix code added at the time of outgoing call may not be added before the incoming call number but may be added after the incoming call number (suffix code).

  The present invention can be suitably used for a relay apparatus having an ID conversion function using a prefix code.

It is a schematic block diagram which shows the outline of the separate charging communication system which concerns on 1st embodiment of this invention. It is a block diagram which shows the relay apparatus which comprises the separate charging communication system which concerns on 1st embodiment of this invention. It is a block diagram of the communication terminal which comprises the separate charging communication system which concerns on 1st embodiment of this invention. It is a flowchart which shows operation | movement of the separate charging communication system which concerns on 1st embodiment of this invention. It is an ID management table figure stored in the relay apparatus which comprises the separate charging communication system which concerns on 1st embodiment of this invention. It is a flowchart which shows operation | movement of the separate charging communication system which concerns on 2nd embodiment of this invention. It is a flowchart which shows operation | movement of ID portability of the separate charging communication system which concerns on 3rd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Separate charging communication system 10 Relay apparatus 101 Prefix receiving means 102 Management ID acquisition means 105 Storage means 106 Charge calculation means 107 Terminal ID acquisition means 50 Communication terminal 100 Communication network

Claims (6)

A communication system in which a communication terminal having a terminal ID and a relay device are connected via a communication line,
The communication terminal
In accordance with an input operation, a selection transmission means for selecting another terminal ID as an incoming call ID and selecting a prefix code;
A transmission means for transmitting the prefix code selected by the selective transmission means and the incoming call ID, and transmitting the terminal ID as a transmission ID to the relay device,
The relay device is
Communication establishment means for connecting the communication terminal and the communication terminal having the incoming call ID selected by the selective transmission means;
Storage means for storing an arbitrary management ID in association with one or more prefix codes corresponding to one terminal ID;
A management ID acquisition unit that searches the storage unit and acquires a management ID corresponding to the transmission ID and prefix code received from the communication terminal;
Communication detection means for detecting the start and / or end of communication for each acquired management ID;
A separate charge communication system comprising: charge calculation means for calculating a communication charge for each management ID in accordance with the start and / or end of communication.   The separated charging communication according to claim 1, wherein the relay apparatus includes a transmission unit that transmits the management ID acquired by the management ID acquisition unit to another communication terminal connected by the communication establishment unit. system. The communication terminal
The selection transmission unit selects a management ID of another communication terminal as an incoming call ID in response to an input operation,
The transmission means transmits the incoming call ID selected by the selective transmission means to the relay device,
The relay device is
The storage means stores at least one terminal ID in association with one management ID, and
Searching the storage means, comprising a terminal ID acquisition means for acquiring a terminal ID corresponding to the incoming call ID received from the communication terminal,
The separated charging communication system according to claim 1 or 2, wherein the communication establishment means connects the communication terminal and a communication terminal having the terminal ID acquired by the terminal ID acquisition means. A relay device connected via a communication line to a communication terminal having a terminal ID,
A communication establishment means for establishing a connection between the communication terminal and another communication terminal selected by the communication terminal;
A prefix receiving unit that receives a prefix ID and an incoming call ID selected according to an input operation and receives a caller ID;
Storage means for storing an arbitrary management ID in association with one or more prefix codes corresponding to one terminal ID;
A management ID acquisition unit that searches the storage unit and acquires a management ID corresponding to the received transmission ID and prefix code;
Communication detection means for detecting the start and / or end of communication for each acquired management ID;
A separate billing relay apparatus comprising charge calculation means for calculating a communication charge for each management ID in accordance with the start and / or end of communication. A separation charging method in a communication system in which a communication terminal having a terminal ID and a relay device are connected via a communication line,
The relay device includes a communication establishment unit, a prefix reception unit, a management ID acquisition unit, a communication detection unit, and a charge calculation unit,
The communication establishment means connecting the communication terminal to another communication terminal selected by the communication terminal;
The prefix receiving means receives the prefix code and the incoming call ID selected according to the input operation, and receives the outgoing call ID;
The management ID acquisition means acquires a management ID corresponding to the received transmission ID and prefix code;
The communication detecting means detecting the start and / or end of communication for each acquired management ID and calculating a communication time;
The charge calculating means includes a step of calculating a charge corresponding to at least a communication time. A separate charging program in a communication system in which a communication terminal having a terminal ID and a relay device are connected via a communication line,
A computer constituting the relay device is
Means for connecting the communication terminal to another communication terminal selected by the communication terminal;
Means for receiving the prefix code and the incoming call ID and receiving the calling terminal ID;
Means for associating and storing an arbitrary management ID for each of one or more prefix codes corresponding to one terminal ID;
Means for searching the storage means and obtaining a management ID corresponding to the transmission ID and prefix code received from the communication terminal;
Means for detecting the start and / or end of communication for each acquired management ID;
A separate charging program for functioning as a means for calculating a communication charge for each management ID.

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