JPH1079813A - Mobile telephone system using telephone card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the system to receive a telephone number of the user by providing a mobile telephone set, making dialing and receiving an incoming call with a telephone number stored in a telephone card and a radio base station registering the telephone number stored in the telephone card as a telephone number of the mobile telephone set. SOLUTION: In the case that a telephone card 2 is loaded to a portable telephone set 1, a control section 1a stores a telephone number stored in the telephone card 2 to an internal memory and conducts succeeding communication control, based on the telephone number of the telephone card 2 stored in the internal memory. In the case of dialing, the telephone number of the telephone card 2 and a telephone number assigned, in advance to the portable telephone set 1, are sent to a radio base station 3. Upon the receipt of the telephone number of the telephone card 2, a control section 3a of the radio base station 3 regards its call as a valid call for conducting communication processing and when the speech is finished, the control section 3a adjusts the speech charge and sends the result to the portable telephone set 1, together with the telephone number of the telephone card 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile telephone system using a telephone card applicable to a car telephone, a portable telephone and the like.

[0002]

2. Description of the Related Art Japanese Utility Model Laid-Open No. 5-85137 discloses that an existing telephone card is inserted into a portable telephone.
A technique for using the mobile phone as a personal mobile public phone has been disclosed.

[0003]

By the way, the above-mentioned conventional portable telephone merely makes the portable telephone function as a mobile public telephone by simply using a telephone card, and is not always convenient. For example, when a user borrows and uses a mobile phone from another person, the phone number of the mobile phone is the phone number of the other person and not the user's phone number, so the user can freely make a call to the user There is a problem that the call cannot be received.

[0004] The present invention has been made in view of the above-described problems, and has as its object to provide a mobile telephone system using a telephone card that can receive a call at the telephone number of a user.

[0005]

In order to achieve the above object, as a first means, a telephone card storing a user's telephone number and the telephone card are mounted.
A mobile telephone for making and receiving calls with the telephone number stored in the telephone card, and, when the call is completed, subtracting a frequency corresponding to a call charge received from the wireless base station and storing the frequency in the telephone card; And a wireless base station for transmitting a call charge for a call originating from the telephone to the mobile telephone and registering the telephone number stored in the telephone card as the telephone number of the mobile telephone.

[0006] As a second means, in the first means, when a normal telephone card having no telephone number stored therein is inserted, the mobile telephone transmits and receives the telephone number assigned to itself. Is performed.

[0007]

According to the present invention, a mobile telephone configured so that a telephone number of a user is stored in a telephone card and that the telephone card is attached to the telephone card can make and receive calls using the telephone number stored in the telephone card. When the call is received and the call is terminated, the frequency corresponding to the call fee received from the wireless base station is subtracted and stored in the telephone card, so that the telephone number of the user stored in the telephone card is used. Not only outgoing calls but also incoming calls can be made. That is, the control unit of the mobile phone is
When a telephone card storing a telephone number is inserted, the telephone number of the telephone card is used as the telephone number of the mobile telephone. Therefore, the control unit controls outgoing and incoming calls based on the user's telephone number stored in the telephone card.

[0008] When a normal telephone card having no telephone number stored therein is mounted on a mobile telephone, outgoing and incoming calls are controlled based on the telephone number previously allocated and stored in the mobile telephone. May be.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 and 2,
An embodiment of a mobile telephone system using a telephone card according to the present invention will be described.

FIG. 2 is a block diagram showing a functional configuration of the present embodiment. In this figure, reference numeral 1 denotes a mobile phone,
2 is a telephone card and 3 is a wireless base station. The mobile phone 1 is formed so that the telephone card 2 is mounted thereon, and is provided with a control unit 1a for performing communication control for outgoing and incoming calls. The control unit 1a includes a telephone card 2 in which a telephone number of a user is stored.
When installed in the telephone base station 2, control relating to outgoing and incoming calls to and from the wireless base station 3 is performed based on the telephone number stored in the telephone card 2.

The telephone card 2 stores a predetermined available frequency and a telephone number of an owner (user). The wireless base station 3 includes a control unit 3a, and relays outgoing calls from the mobile phone 1 and incoming calls to the mobile phone 1. A plurality of the radio base stations 3 are provided for each communication service area in a predetermined range.

Next, communication processing of the mobile telephone system thus configured will be described with reference to the flowchart shown in FIG. First, when a telephone card is inserted, the control unit 1a determines whether a telephone number is stored in the telephone card attached to the mobile phone 1 (step S1).

When the determination is "YES", that is, when the telephone card 2 storing the telephone number of the user is attached to the portable telephone 1, the telephone number stored in the telephone card 2 is stored in the internal memory. (Step S2),
The subsequent communication control is performed based on the telephone number of the telephone card 2 stored in the internal memory. If the determination is "NO", that is, if a general telephone card in which only the available number is stored is inserted into the mobile phone 1, the communication is not permitted (step S3).

Subsequently, the control unit 1a performs a calling operation. At this time, the telephone number of the telephone card 2 and the telephone number previously assigned to the portable telephone 1 are transmitted to the wireless base station 3 (step S4). ). On the other hand, the control unit 3a of the wireless base station 3 determines whether or not the telephone number of the telephone card 2 has been received from the mobile phone 1 (step S5). Here, when it is determined that the telephone number of the telephone card has been received, the control unit 3a performs a communication (call) process by regarding the outgoing call as a valid outgoing call (step S6).

On the other hand, if the control section 3a determines in step S5 that the telephone number of the telephone card 2 has not been received, the call is invalidated and the communication is not permitted (step S7). In this case, the control unit 3a
A message to the effect that communication cannot be permitted is returned to the mobile phone 1.

When the call in step S6 is completed, the control section 3a adjusts the call charge and sends it to the mobile phone 1 together with the telephone number of the telephone card 2 (step S8). As a result, the controller 1a of the mobile phone 1
Re-records the frequency obtained by subtracting the frequency corresponding to the call charge from the frequency stored in the telephone card 2 as the usable frequency of the telephone card 2 (step S).
9) End the transmission process.

Once a call is made in this manner, the radio base station 3 registers the telephone number of the telephone card 2,
Alternatively, the correspondence between the mobile phone 1 and the telephone number of the telephone card 2 is registered. Therefore, the wireless base station 3
Connects the outgoing call to the mobile phone 1 as a call to the telephone number of the telephone card 2 when the call to the mobile phone 1 is sent.

If there is no telephone number assigned to the portable telephone 1, only the telephone number of the telephone card 2 is transmitted to the wireless base station 3 in step S4. Further, when a specific telephone number is assigned and stored in advance in the mobile phone 1 and a general telephone card that does not store the user's telephone number is attached, the previously stored telephone number is Control based on outgoing and incoming calls may be performed based on the call.

[0019]

As described above, according to the mobile telephone system using the telephone card according to the present invention, the following effects can be obtained. (1) A telephone card in which the telephone number of the user is stored, and a call is made and received using the telephone card loaded with the telephone card and the telephone number stored in the telephone card. A mobile phone storing a telephone card by subtracting a frequency corresponding to the call fee, transmitting a call fee for a call originated from the mobile phone to the mobile phone, and storing a telephone number stored in the telephone card. Since there is provided a wireless base station registered as the telephone number of the mobile telephone, it is possible to make and receive calls using the telephone number stored in the telephone card attached to the mobile telephone. Therefore, when a mobile telephone is borrowed and used, the user can make and receive calls based on the telephone number of the telephone card owned by the user, irrespective of the telephone number assigned to the mobile telephone in advance. As a result, the call charge can be paid immediately and the mobile telephone can be used almost as much as the telephone owned by the user, regardless of the lender. (2) Further, since the telephone number of the mobile telephone is switched to the telephone number of the telephone card, it is possible to receive an incoming call with the telephone number of the user holding the telephone card. (3) For example, when a mobile phone is rented out by a rental company, it is not necessary to assign a telephone number to the mobile phone in advance, so that damage when the mobile phone is lost can be minimized.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a communication operation in a mobile telephone system using a telephone card according to the present invention.

FIG. 2 is a block diagram showing a functional configuration of a mobile telephone system using a telephone card according to the present invention.

[Explanation of symbols]

1 ... mobile telephone, 1a ... mobile telephone control unit, 2 ...
... Telephone card, 3 ... Wireless base station, 3a ... Control unit of wireless base station

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location H04M 17/02 H04B 7/26 V // H04M 1/00 109J

Claims (2)

[Claims] 1. A telephone card in which a telephone number of a user is stored, and a telephone base station in which the telephone card is mounted, makes and receives a call using the telephone number stored in the telephone card, and terminates the call. And a mobile phone that subtracts the frequency corresponding to the call charge received from the mobile phone and stores the same in the telephone card, and transmits the call charge for the call originated from the mobile phone to the mobile phone and stores the call charge in the telephone card. A mobile telephone system using a telephone card, comprising: a radio base station for registering a telephone number as a telephone number of the mobile telephone. 2. A mobile telephone system using a telephone card according to claim 1, wherein the mobile telephone has a telephone number assigned to itself when a normal telephone card having no stored telephone number is inserted. A mobile telephone system using a telephone card, wherein a call is made and an incoming call is made.