JP2000125001A - Portable telephone connection system, portable telephone connecting method used for same, and storage medium where its control program is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone connection system which enables a fixed-network telephone subscriber to use a personal handy phone service. SOLUTION: In a data base 6, the telephone number of a subscriber B which is inputted from an input/output device 1 and the numbers of held simple portable telephone sets 1c-1 to 1c-n are registered in advance. A fixed-network telephone exchange 3, when connecting a subscriber telephone 1a to a subscriber telephone set 1b to receive its call, actuates a service controller 5. The service controller 5 refers to the data base 6 and sends the portable telephone number corresponding to the subscriber telephone 1b back to the fixed-network telephone exchange 3 when the portable telephone is ready for reception. The fixed- network telephone exchange 3 sends the portable telephone number to a simple portable telephone exchange 7 through a public telephone network 4 and connects it to the portable telephone set 1c-1 through a cell station 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone connection system, a portable telephone connection method used therefor, and a recording medium recording a control program therefor, and more particularly to a simplified portable telephone comprising a public network telephone exchange and a simplified portable telephone exchange. Regarding the connection system.

[0002]

2. Description of the Related Art Conventionally, a simplified portable telephone connection system is composed of a public network telephone exchange and a simplified portable telephone exchange, and the conventional connection system having such a configuration operates as follows. .

[0003] In other words, a public network telephone subscriber connects by dialing a connection access code and a cellular telephone subscriber number under a special numbering plan for a simplified cellular phone operator.

For example, when a public network telephone subscriber dials and connects to a simplified portable telephone subscriber, "050-XX"
"X-XXXX". in this case,
“050” is an access code for connection to a simplified mobile phone operator, and “XXX-XXXX” is a mobile phone subscriber number.

Japanese Patent Application Laid-Open No. Hei 8-16877 discloses a method of automatically making a call and a call using a public line even when a direct wireless call cannot be made with a slave unit of the other party in a mutual call between slave units of a simplified portable telephone device. Techniques for enabling this are disclosed.

According to the technology described in this publication, in a simplified portable telephone device provided with a plurality of slave units to which different outside line numbers of public lines are respectively assigned, each slave unit is connected to a master unit and between slave units. A wireless unit for making a call is provided.

[0007] When a wireless connection cannot be established between the slave units, each slave unit automatically calls the other slave unit using the stored external line number using the public line, and the slave units communicate with each other via the public line. Is possible.

[0008]

In the above-mentioned conventional simplified portable telephone connection system, it is assumed that the fixed telephone network operator and the simplified portable telephone network operator are different from each other. In order to provide a mobile telephone service, it is necessary to have a special numbering plan, and there is a problem that a fixed telephone network operator cannot operate the service.

[0009] On the other hand, in the case of permitting the operation of the simplified portable telephone service only to the fixed telephone network operator, only the same connection access code as that of the fixed telephone network can be used, and the conventional technology cannot cope with it. There's a problem.

[0010] Furthermore, since each of them is regarded as an individual simplified type mobile phone subscriber, when connecting to a subscriber holding a plurality of mobile terminals, there is a problem that a mobile terminal number must be dialed each time. .

Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide a portable telephone connection system capable of receiving a simplified portable telephone service even to a fixed-line telephone subscriber, a portable telephone connection method used therefor, and a portable telephone connection method therefor. An object of the present invention is to provide a recording medium on which a control program is recorded.

Another object of the present invention is to provide a portable telephone connection system capable of connecting to a designated portable telephone by a single operation when a called subscriber has a plurality of simplified portable telephones, and a portable telephone connection system therefor. An object of the present invention is to provide a mobile phone connection method to be used and a recording medium in which a control program thereof is recorded.

Still another object of the present invention is to provide a portable telephone connection system capable of connecting to a fixed telephone even when the portable telephone cannot be connected, a portable telephone connection method used therefor, and a recording medium recording a control program therefor. Is to do.

[0014]

A portable telephone connection system according to the present invention is a portable telephone connection system including a fixed network telephone exchange which is connected to a public telephone network and performs telephone exchange, and is connected to the fixed network telephone exchange. A database for storing the numbers of the subscriber telephones and the mobile telephones to be associated with each other in advance, and a telephone number for the connection destination when performing a telephone exchange from the subscriber telephone of the call destination to the subscriber telephone of the connection destination. Determining means for determining whether or not the number of the subscriber telephone is registered in the database; and when the determining means detects registration of the number of the subscriber telephone to be connected to the database, the subscriber telephone to be connected to Connection means for connecting the portable telephone and the called subscriber telephone via the public telephone network based on the number of the portable telephone corresponding to the number of the portable telephone. .

In another mobile telephone connection system according to the present invention, in the above configuration, the connection means determines whether or not the mobile telephone can receive when the mobile telephone is connected to the called subscriber telephone. And a means for connecting the called subscriber's telephone to the connected subscriber's telephone when the determining means determines that reception is not possible.

Another mobile telephone connection system according to the present invention is a mobile telephone connection system including a fixed network telephone exchange connected to a public telephone network and performing telephone exchange, wherein a subscriber connected to the fixed network telephone exchange is provided. A database in which telephone numbers, a plurality of mobile telephone numbers, and an access number for specifying one of the plurality of mobile telephones are stored in advance in association with each other; Determining means for determining whether or not the number of the subscriber telephone of the connection destination is registered in the database when performing a telephone exchange with the subscriber telephone; and the database for storing the number of the subscriber telephone of the connection destination. Based on the number of the mobile phone specified by the access number when the registration of the mobile phone is detected and corresponding to the number of the subscriber telephone to be connected to the mobile phone. The connection between the call destination subscriber telephone and a connection means for performing via the public telephone network and.

A portable telephone connection method according to the present invention is a portable telephone connection method for a portable telephone connection system including a fixed telephone exchange which is connected to a public telephone network and performs telephone exchange, and is connected to the fixed telephone exchange. When performing a telephone exchange from a subscriber telephone of a calling party to a subscriber telephone of a connection destination, the number of the subscriber telephone and the number of a mobile telephone are previously associated with each other and stored in a database in which the subscriber of the connection destination is registered. Determining whether the number of the subscriber telephone is registered, and when determining that the number of the subscriber telephone of the connection destination is registered in the database, corresponds to the number of the subscriber telephone of the connection destination. Making a connection between the mobile phone and the called subscriber telephone via the public telephone network based on the number of the mobile phone.

In another mobile telephone connection method according to the present invention, in the above-mentioned step, the step of connecting the mobile telephone and the called subscriber telephone via the public telephone network comprises the steps of: Judging whether or not the portable telephone can be received when connected to the called subscriber telephone; and, if judged unreceivable, the called subscriber telephone is set to the connected subscriber telephone. Connecting.

Another mobile telephone connection method according to the present invention is a mobile telephone connection method for a mobile telephone connection system including a fixed network telephone exchange connected to a public telephone network and performing telephone exchange. When performing a telephone exchange from a connected subscriber telephone to a connected subscriber telephone, the number of the subscriber telephone, the number of a plurality of mobile telephones, and one of the plurality of mobile telephones are changed. Determining whether or not the number of the connected subscriber telephone is registered in a database in which the access numbers to be specified are stored in association with each other in advance; and storing the number of the connected subscriber telephone in the database. When it is determined that the mobile phone has been registered, the mobile phone is identified based on the access number and the mobile phone number based on the mobile phone number corresponding to the subscriber telephone number of the connection destination. The connection between the call destination subscriber telephone and a step of performing via the public telephone network and.

The recording medium storing the portable telephone connection control program according to the present invention is a portable telephone connection control program for connecting a fixed telephone exchange, which is connected to a public telephone network and performs telephone exchange, to a portable telephone. In the recorded recording medium, the portable telephone connection control program causes the fixed network telephone exchange to perform a telephone exchange from a calling subscriber telephone connected to the fixed network telephone exchange to a connected subscriber telephone. When performing the connection, it is determined whether or not the number of the subscriber telephone of the connection destination is registered in a database storing the number of the subscriber telephone and the number of the mobile telephone in advance in association with each other, and When it is determined that the number of the subscriber telephone is registered in the database, the number of the portable telephone corresponding to the number of the subscriber telephone to be connected is determined based on the number of the portable telephone. The connection of the mobile phone and the call destination subscriber telephone is made to perform via the public telephone network.

According to another aspect of the present invention, there is provided a recording medium storing another portable telephone connection program according to the above operation, wherein the portable telephone connection control program stores the portable telephone and the called subscriber telephone in the fixed network telephone exchange. When making the connection with the public telephone network through the public telephone network, the mobile phone is determined whether or not the mobile phone can be received at the time of connection between the mobile phone and the called subscriber telephone, and it is determined that the reception is not possible. At times, the called subscriber's telephone is connected to the connected subscriber's telephone.

A recording medium storing another portable telephone connection program according to the present invention is a portable telephone connection control program for connecting a fixed telephone exchange, which is connected to a public telephone network and performs telephone exchange, to a portable telephone. Wherein the portable telephone connection control program causes the fixed network telephone exchange to perform a telephone exchange from a calling subscriber telephone connected to the fixed network telephone exchange to a connected subscriber telephone. When performing the connection, the subscriber of the connection destination is stored in a database in which a number of the subscriber telephone, a number of a plurality of mobile telephones, and an access number for specifying one of the plurality of mobile telephones are stored in advance in association with each other. It is determined whether or not the telephone number is registered, and when it is determined that the number of the subscriber telephone to be connected is registered in the database, A connection is established between the mobile telephone and the called subscriber telephone via the public telephone network based on the number of the mobile telephone specified by the access number and corresponding to the number of the connected subscriber telephone. I'm making it.

That is, the simplified portable telephone connection system of the present invention provides a configuration that enables a fixed telephone network subscriber to connect to a simplified portable telephone.
More specifically, the simplified portable telephone connection system of the present invention includes a service control device for controlling a fixed network telephone exchange.

The fixed network telephone exchange has connection destination registration means for performing connection destination registration from a connection destination subscriber telephone and setting of a simplified portable telephone connection mode based on control of the service control device, and control of the service control device. Connection means for connecting to a connection-target mobile telephone based on

[0025] With this, a simplified portable telephone connection by a fixed telephone network subscriber is enabled. In this case, a connection destination can be selected by a designated access code. Can be connected to a designated mobile phone with a single operation. Further, when the mobile phone is in use or in a state where radio waves do not reach, when the mobile phone cannot be connected to the mobile phone, it is possible to connect to the fixed telephone to which the mobile phone is connected.

[0026]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a simplified portable telephone connection system according to one embodiment of the present invention. In the figure, a simplified portable telephone connection system according to one embodiment of the present invention includes a fixed telephone exchange 3, a simplified portable telephone exchange 7, and a fixed telephone exchange 3 which are connected to a public telephone network 4 and perform telephone exchange. Subscriber telephones 1a and 1b connected via telephone lines, and a simplified mobile telephone exchange 7
And a mobile phone 1c connected via a cell station (CS) 9.

The fixed network telephone exchange 3 is based on the contents of the database 6 storing the simplified portable telephone number held by the called subscriber B accommodated, and the simplified portable telephone (PS) 1c corresponding to the connected subscriber B based on the contents of the database 6. -1 to 1c-n.

Here, the feature of the present invention is that a service control unit (SN) 5 for controlling the fixed network telephone exchange 3 is provided.
The fixed network telephone exchange 3 includes a connection destination registration unit 31 for performing registration of a connection destination from the subscriber's telephone 1b and setting of a simplified mobile phone connection mode based on the control of the service control device 5, and a service control device. And connection means 32 for connecting to the mobile phones 1c-1 to 1c-n of the connection destination based on the control of No. 5.

FIG. 2 is a diagram showing the contents registered in the database 6 of FIG. In the figure, a fixed telephone number “1b”, an access number “1”,
“2”, “3”,..., “N” and the mobile phone number “number of mobile phone 1c-1”, “number of mobile phone 1c-2”, “number of mobile phone 1c-3”,. The “number of the mobile phone 1c-n” is stored in association with each other.

Referring to FIGS. 1 and 2, a method of registering and starting a connection destination mobile phone will be described first. By inputting in advance the telephone number of the subscriber B and the numbers of the portable telephones 1c-1 to 1c-n held by the input / output device 11, the contents are registered in the database 6.

This makes it possible to use the simplified portable telephone connection system for the subscriber B. When there are a plurality of simplified portable telephones 1c-1 to 1c-n held by the subscriber B, access numbers are provided and the simplified portable telephones 1c-1 to 1c are provided.
By assigning a plurality of access numbers to the -n number, the registered contents of the database 6 are associated with each other.

FIG. 3 is a flowchart showing an operation of connecting to the simplified portable telephones 1c-1 to 1c-n according to one embodiment of the present invention. With reference to FIGS. 1 to 3, an operation of connecting to the simplified portable telephones 1c-1 to 1c-n according to one embodiment of the present invention will be described.

First, subscriber A off-hook subscriber telephone 1a (step S1 in FIG. 3) and dials the telephone number of subscriber B using telephone line 101 (step S2 in FIG. 3). The fixed-line telephone exchange 3 accommodating the line 102 is connected to the mobile telephone service (PC
It is determined whether or not the service is in the holding subscriber category (T service) (step S3 in FIG. 3).

In this case, if the telephone line 102 is not in the subscriber category of the mobile telephone service, the fixed network telephone exchange 3 sets the fixed telephone of the subscriber B (subscriber telephone 1b).
(Step S10 in FIG. 3).

The fixed-line telephone exchange 3 is connected to a telephone line 10
2 is in the mobile phone service holding subscriber category, the service control device 5
Is started (step S4 in FIG. 3).

The service control unit 5 is a fixed network telephone exchange 3
Is requested to connect the telephone line 101 to the audio reproduction device (VM) 10. The fixed network telephone exchange 3 connects the voice reproducing apparatus 10 to the telephone line 102 and causes the subscriber A to dial the access number of the simplified portable telephone to be connected (step S5 in FIG. 3). Here, the access number is “1”.

The access number "1" dialed by the subscriber A is sent to the service control device 5 via the fixed network telephone exchange 3 (steps S6-1 to S6- FIG. 3).
n). The service control device 5 refers to the database 6 and
If the mobile phone is in a receivable state (step S in FIG. 3)
7) The "mobile phone 1c-1 number" which is the mobile phone number corresponding to the access number "1" is sent back to the fixed network telephone exchange 3.

The fixed network telephone exchange 3 includes a service control unit 5
The number of the mobile phone 1c-1 received from the public telephone network 4
(Step S8 in FIG. 3), and is connected to the mobile phone 1c-1 via the cell station 9 accommodated in the simplified mobile phone exchange 7 (step S9 in FIG. 3). ). By the above processing operation,
The connection to subscriber B is completed.

As described above, the service control device 5 for controlling the fixed network telephone exchange 3 and the registration of the connection destination and the setting of the simple portable telephone connection mode from the subscriber telephone of the connection destination based on the control of the service control device 5 are performed. Connection destination registration means 31 to be performed
And the connection means 32 for connecting to the mobile phone of the connection destination based on the control of the service control device 5, so that the simplified mobile phone connection by the fixed telephone network subscriber can be performed.

In this case, since the connection destination can be selected by the designated access number, even if the called subscriber has a plurality of simplified portable telephones 1c-1 to 1c-n,
Simplified mobile phones 1c-1 to 1c- designated by one operation
n. In addition, since the portable telephone 1c-1 is in use or in a state where radio waves cannot reach.
When it is not possible to connect to .about.1c-n, it is possible to connect to a fixed telephone (subscriber telephone 1b).

[0041]

As described above, according to the portable telephone connection system of the present invention, in the portable telephone connection system including the fixed telephone exchange connected to the public telephone network and performing telephone exchange, the connection to the fixed telephone exchange is established. When performing a telephone exchange from the called subscriber telephone to the connected subscriber telephone to be connected, the subscriber of the connection destination is stored in a database in which the number of the subscriber telephone and the number of the mobile telephone are stored in association with each other in advance. It is determined whether or not the telephone number is registered, and when it is determined that the number of the connected subscriber telephone is registered in the database, the number of the mobile telephone corresponding to the number of the connected subscriber telephone is determined. By connecting the mobile phone and the called subscriber telephone via the public telephone network, even a fixed-line telephone subscriber can receive the simplified mobile phone service. There is an effect that kill.

Further, according to another mobile telephone connection system of the present invention, in the above operation, when the connection between the mobile telephone and the called subscriber telephone is made via the public telephone network,
It is determined whether or not the mobile telephone can be received at the time of connection between the mobile telephone and the called subscriber telephone. As a result, there is an effect that a connection to a fixed telephone can be made even when a connection cannot be made to a mobile telephone.

Further, according to another mobile telephone connection system of the present invention, in a mobile telephone connection system including a fixed network telephone exchange connected to a public telephone network and performing telephone exchange, a caller connected to the fixed network telephone exchange is provided. When performing a telephone exchange from a called subscriber telephone to a connected subscriber telephone, a subscriber telephone number, a plurality of mobile telephone numbers, and an access number for specifying one of the plurality of mobile telephones are exchanged. It is determined whether or not the number of the subscriber telephone to be connected is registered in a database stored in advance in association with each other,
When it is determined that the number of the subscriber telephone to be connected is registered in the database, the mobile telephone and the call destination are specified based on the access number and based on the number of the mobile telephone corresponding to the number of the subscriber telephone to be connected. By connecting to the subscriber's telephone via the public telephone network, it is possible to connect to the designated mobile phone with a single operation when the receiving subscriber has multiple simplified mobile phones effective.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a simplified portable telephone connection system according to an embodiment of the present invention.

FIG. 2 is a diagram showing contents registered in a database of FIG. 1;

FIG. 3 is a flowchart showing a connection operation to a simplified mobile phone according to one embodiment of the present invention.

[Explanation of symbols]

 1a, 1b Subscriber telephones 1c-1 to 1c-n Simplified mobile phone 3 Fixed network telephone exchange 4 Public telephone network 5 Service control device 6 Database 7 Simplified mobile telephone exchange 9 Cell station 10 Voice reproduction device

Continued on the front page F-term (reference) 5K015 AA00 AB00 AF01 AF02 AF05 HA00 HA01 5K024 AA41 AA45 BB00 BB04 CC01 CC11 CC14 DD01 DD04 DD05 GG03 GG06 GG11 GG13 5K051 BB01 CC01 CC07 DD01 DD15 EE01 EE02 FF02 FF04 FF02 FF02 FF02 FF04 FF02 FF04 FF02 FF04 FF04 FF04 EE04 EE16 FF07 HH05 HH11 HH17 HH22 HH23 KK15

Claims (11)

[Claims] 1. A mobile telephone connection system including a fixed telephone exchange connected to a public telephone network and performing telephone exchange, wherein a subscriber telephone number and a mobile telephone number connected to the fixed telephone exchange are connected. And a database in which the numbers of the connected subscriber telephones are registered in the database when performing a telephone exchange from the called subscriber telephone to the connected subscriber telephone. Determining means for determining, based on the number of the mobile phone corresponding to the number of the subscriber telephone of the connection destination when the determination means detects the registration of the number of the subscriber telephone of the connection destination in the database A mobile telephone connection system comprising: connection means for connecting the mobile telephone to the called subscriber telephone via the public telephone network. 2. The connection means determines whether or not the portable telephone can be received when the portable telephone is connected to the called subscriber telephone, and the determination means determines that reception is not possible. Means for connecting the called subscriber's telephone to the connected subscriber's telephone when the call is made. 3. A mobile telephone connection system including a fixed network telephone exchange connected to a public telephone network and performing telephone exchange, wherein a number of a subscriber telephone connected to the fixed network telephone exchange and a plurality of mobile telephones are provided. A database in which a number and an access number specifying one of the plurality of mobile telephones are stored in association with each other in advance, and when performing a telephone exchange from a calling subscriber telephone to a connected subscriber telephone. Determining means for determining whether or not the number of the connected subscriber telephone is registered in the database; and when the determining means detects registration of the number of the connected subscriber telephone to the database, the access is performed. Based on the number of the mobile phone specified by the number and corresponding to the number of the subscriber telephone of the connection destination, before the connection between the mobile phone and the subscriber telephone of the call destination; Connection means for performing connection via a public telephone network. 4. The connection means determines whether or not the portable telephone can be received when the portable telephone is connected to the called subscriber telephone, and the determination means determines that reception is not possible. 4. The mobile telephone connection system according to claim 3, further comprising: means for connecting the called subscriber's telephone to the connected subscriber's telephone when the call is made. 5. A mobile telephone connection method for a mobile telephone connection system including a fixed network telephone exchange connected to a public telephone network and performing a telephone exchange, wherein a call destination subscriber connected to the fixed network telephone exchange is provided. When performing a telephone exchange from a telephone set to a connected subscriber telephone set, the number of the connected subscriber telephone set is registered in a database in which the number of the subscriber telephone set and the number of the mobile telephone set are previously associated with each other and stored. Determining whether the number of the connected subscriber telephone is registered in the database based on the number of the mobile telephone corresponding to the number of the connected subscriber telephone. Connecting the mobile telephone and the called subscriber telephone via the public telephone network. 6. The step of connecting the portable telephone and the called subscriber telephone via the public telephone network, wherein the step of connecting the portable telephone and the called subscriber telephone is performed when the portable telephone is connected to the called subscriber telephone. 6. The method according to claim 5, further comprising the steps of: determining whether the telephone can be received; and connecting the called subscriber telephone to the connected subscriber telephone when it is determined that the telephone cannot be received. Mobile phone connection method described. 7. A mobile telephone connection method for a mobile telephone connection system including a fixed network telephone exchange connected to a public telephone network and performing telephone exchange, wherein a call destination subscriber connected to the fixed network telephone exchange is provided. When performing a telephone exchange from a telephone to a connected subscriber telephone, the subscriber telephone number, a plurality of mobile telephone numbers, and an access number for specifying any of the plurality of mobile telephones correspond to each other in advance. Determining whether or not the number of the connected subscriber telephone is registered in a database to be attached and stored, and determining that the number of the connected subscriber telephone is registered in the database. Connection between the mobile telephone and the called subscriber telephone based on the number of the mobile telephone specified by the access number and corresponding to the number of the connected subscriber telephone Performing via the public telephone network. 8. A step of connecting the mobile phone and the called subscriber telephone via the public telephone network, wherein the step of connecting the mobile phone and the called subscriber telephone is performed when the mobile phone is connected to the called subscriber telephone. 8. The method according to claim 7, further comprising the steps of: determining whether the telephone can be received; and connecting the called subscriber telephone to the connected subscriber telephone when it is determined that the telephone cannot be received. Mobile phone connection method described. 9. A recording medium recording a mobile telephone connection control program for causing a fixed network telephone exchange connected to a public telephone network and performing telephone exchange to connect to a mobile telephone, wherein said mobile telephone connection control program is provided. When the telephone exchange is performed by the fixed network telephone exchange from the calling subscriber telephone connected to the fixed network telephone exchange to the connected subscriber telephone, the number of the subscriber telephone and the mobile telephone are connected. It is determined whether or not the number of the subscriber telephone of the connection destination is registered in a database in which the numbers are stored in advance in association with each other, and it is determined that the number of the subscriber telephone of the connection destination is registered in the database. When it is determined, the connection between the mobile phone and the called subscriber telephone based on the number of the mobile telephone corresponding to the number of the connected subscriber telephone is determined by the public telephone. A recording medium storing a mobile phone connection control program, which is executed via a network. 10. The mobile telephone connection control program according to claim 1, wherein said mobile telephone connection control program causes said fixed telephone exchange to perform connection between said mobile telephone and said subscriber's telephone set via said public telephone network. And when the mobile telephone is receivable at the time of connection with the subscriber telephone of the call destination, and when it is determined that reception is not possible, the subscriber telephone of the call destination is connected to the subscriber telephone of the connection destination A recording medium recording the mobile phone connection control program according to claim 9. 11. A recording medium storing a mobile telephone connection control program for causing a fixed network telephone exchange connected to a public telephone network and performing telephone exchange to make a connection to a mobile telephone, wherein the mobile telephone connection control is performed. The program causes the fixed network telephone exchange to perform a telephone exchange from a calling subscriber telephone connected to the fixed network telephone exchange to a connected subscriber telephone, and a number of the subscriber telephone and a plurality of portable telephones. A telephone number and an access number specifying one of the plurality of mobile telephones are made to determine whether or not the number of the subscriber telephone of the connection destination is registered in a database that is stored in advance in association with each other, The number of the destination telephone set identified by the access number when it is determined that the number of the destination destination telephone set is registered in the database. Recording a mobile phone connection control program, wherein a connection between the mobile phone and the called subscriber telephone is made via the public telephone network based on the number of the mobile phone corresponding to Medium.