JP2002135829A - Mobile communication system and communication method for moving object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily call a party even when the number of subscribers is increased. SOLUTION: When the same telephone number is assigned to a plurality of mobile telephony equipment 3 and a call is instructed from communication equipment on the side of call originating while designating an MSN, which is a telephone number, a mobile communication control station 2 retrieves a subscriber number managing table and specifies an identification number for identifying each of mobile telephony equipment 3. The subscriber number managing table correspondently registers the telephone number assigned to a plurality of mobile telephony equipment 3, a sub-address added to the relevant telephone number and the identification number for identifying each of mobile telephony equipment 3. Calling operation is performed by sending a paging message or call setting message to a plurality of mobile telephony equipment of specified identification number by the mobile communication control station 2 and when any one of mobile telephony equipment 3 responses, the call of the other mobile telephony equipment 3 is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile station such as a mobile telephone unit for connecting to a base station via a radio line and communicating with another mobile telephone unit or a wired telephone unit. The present invention relates to a mobile communication system, and more particularly to a mobile communication system that is suitable when the number of subscribers increases and that can easily call a destination.

[0002]

2. Description of the Related Art For example, portable telephone systems and PHS (Pers
A subscriber of a mobile communication service provided using the onal handy-phone system acquires one telephone number as its own telephone number in accordance with a contract with a communication carrier. Usually, this one telephone number, MSN (Mobility Subscriber)
Number) is assigned only to a mobile terminal such as one mobile telephone device. Also, the mobile terminal has an MSI, which is an identification number for identifying each terminal, separately from the MSN.
(Mobility Subscriber Identity).

[0003]

The telephone number of a mobile telephone device such as a portable telephone or a PHS was initially 9 digits, but has recently become 11 digits due to the increase in the number of mobile communication service subscribers in recent years. I have. When the telephone number becomes long in this way, the operation of inputting the telephone number when calling the other party becomes complicated, and it becomes difficult for the user to store the telephone number.

On the other hand, with the spread of various electronic devices, in addition to mobile telephone devices, for example, personal computers and FAs
One user owns a plurality of information devices having a communication function such as X. Therefore, various pieces of call information (telephone number, e-mail address, FAX number, etc.) for calling a user are assigned to a plurality of users. In such a situation, an increase in the telephone number of the mobile telephone device complicates the management of call information, and gives the user an impression that the convenience of the mobile telephone device has been significantly impaired.

[0005] The present invention has been made in view of the above situation, and has as its object to provide a mobile communication system capable of easily calling a destination even if the number of subscribers increases.

[0006]

To achieve the above object, a mobile communication system according to a first aspect of the present invention comprises:
A plurality of mobile telephone devices to which the same telephone number is assigned, and a mobile communication control station which provides a wireless communication line connecting the communication terminal on the calling side and each of the mobile telephone devices to enable communication. When the mobile communication control station specifies a telephone number assigned to the plurality of mobile telephone devices from a communication terminal on the calling side and instructs a call, each of the mobile telephone devices to which the telephone number is assigned is provided. And identifying each of the mobile telephone devices by specifying an identification number for identifying the mobile telephone device.

According to the present invention, the same telephone number is assigned to a plurality of mobile telephone devices, and the mobile communication control station identifies each mobile telephone device according to the telephone number specified by the communication terminal on the calling side. Can be identified and called. As a result, when the number of subscribers increases, the telephone number can be prevented from becoming too long, and the other party can be easily called.

[0008] More specifically, the mobile communication control station comprises:
A telephone number assigned to the plurality of mobile telephone devices;
It has a subscriber management table registered in association with an identification number for identifying each of the mobile telephone devices, and a telephone number is designated by a communication terminal on the calling side to call the plurality of mobile telephone devices. Then, it is desirable to specify an identification number for identifying each of the mobile telephone devices to which the telephone number specified by the originating communication terminal is assigned by searching the subscriber management table.

[0009] When the mobile communication control station responds to the calling operation in any one of the plurality of mobile telephone devices, the mobile communication control station determines which of the plurality of mobile telephone devices has not responded. It is desirable to release the call.

When the mobile communication control station receives a message instructing transfer from one of the plurality of mobile telephone apparatuses that has responded to the calling operation, the mobile communication control station transmits another message to which the same telephone number is assigned. It is desirable to call a mobile telephone device.

Each of the mobile telephone devices is assigned a telephone number including a subaddress, and the mobile communication control station comprises:
When a transfer instruction message is received from the mobile telephone device that has responded to the call operation among the plurality of mobile telephone devices, the transfer destination is set as the transfer destination among the other mobile telephone devices to which the same telephone number is assigned. It is desirable to call the mobile telephone device to which the specified subaddress has been assigned.

Each of the mobile telephone devices notifies the mobile communication control station of a telephone number including a sub-address assigned to the transfer destination mobile telephone device when transmitting a message instructing the transfer. When the control station receives the message indicating the transfer from the mobile telephone device that has responded to the calling operation, the control station transmits the message indicating the transfer including the telephone number including the subaddress assigned to the transfer destination mobile telephone device. The call is transmitted to the communication terminal of the calling side, receives a message indicating the transfer confirmation from the communication terminal of the calling side, releases the active call, and the mobile telephone of the transfer destination automatically transmitted from the communication terminal of the calling side. It is desirable to call the device.

In a mobile communication method according to a second aspect of the present invention, the same telephone number is assigned to a plurality of mobile telephone devices, and a telephone assigned to the plurality of mobile telephone devices from a calling communication device. When a call is instructed by designating a number, an identification number for identifying each of the mobile telephone devices to which the telephone number is assigned is specified and each of the mobile telephone devices is called.

[0014] When a telephone number is designated by the communication device on the calling side and a call to the plurality of mobile telephone devices is instructed, the telephone numbers assigned to the plurality of mobile telephone devices and each of the mobile telephone devices are identified. A subscriber management table registered in association with an identification number for identifying the identification number for identifying each of the mobile telephone devices to which the telephone number specified by the originating communication device is assigned. It is desirable to do.

[0015] When a transfer instruction message is transmitted from one of the plurality of mobile telephone devices that has responded to the call operation, another mobile telephone device assigned the same telephone number is called. You may.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A mobile communication system according to an embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a diagram showing a configuration of a mobile communication system according to an embodiment of the present invention. As shown
This mobile communication system includes a radio base station 1, a mobile communication control station 2, and a mobile telephone device 3.

In this mobile communication system, a plurality of radio base stations 1 are appropriately distributed so as to cover a radio communication service area provided by the mobile communication system. In addition, a plurality of mobile telephone devices 3 are allocated with a mobile subscriber number (MSN), which is a telephone number. Further, the mobile telephone device 3 has an MSI (Mobility S) which is an identification number for identifying each terminal.
tation Identification). When the mobile telephone device 3 is powered on within the wireless communication service area of the mobile communication system, the mobile telephone apparatus 3 transmits and receives a wireless signal to and from the wireless base station 1 covering the wireless communication service area. Communication can be performed with the other party's mobile telephone device 3 or a communication device (not shown) connected to a public line.

The radio base station 1 is a communication station for coupling the mobile telephone device 3 to the mobile communication control station 2 by radio waves or the like.

The mobile communication control station 2 is for providing a wireless communication line for a mobile body, and is connected to the wireless base station 1 by wire or wirelessly.

The mobile telephone device 3 is for transmitting and receiving radio signals to and from the radio base station 1 for communication. For example, as shown in FIG. 2, an operation control unit 10 and a storage unit 1
1, a key input unit 12, a communication processing unit 13, an audio signal processing unit 14, and a display unit 15.

The operation control unit 10 includes, for example, a CPU (Centra
l Processing Unit) for controlling the operation of the entire mobile telephone device 3.

The storage unit 11 is composed of, for example, a semiconductor memory, and stores a processing program executed by the operation control unit 10 and various data.

The key input unit 12 is composed of, for example, a keypad or the like, and is an instruction input unit for inputting an instruction from a user to the mobile telephone device 3. The key input unit 12
For example, instruction information corresponding to a pressed key is transmitted to the operation control unit 1.
0, the instruction from the user is sent to the operation control unit 1.
Notify 0.

The communication processing unit 13 includes, for example, a signal processor, an RF (Radio Frequency) modulator / demodulator, an antenna, and the like, and performs communication by transmitting and receiving radio signals to and from the radio base station 1. .

The audio signal processing unit 14 includes, for example, an audio COD
It is composed of an EC (COder / DECoder), a speaker, a microphone, etc., outputs a sound in accordance with a sound signal received from the operation control unit 10 or the communication processing unit 13, and outputs the sound input from the outside to the communication processing unit 13 as a sound signal. It is for enabling a call by sending.

The display unit 15 is, for example, an LCD (Liquid Cry).
stal Display) panel, and the like.
In order to display an image showing a character, a figure, or the like according to the control of (1).

Hereinafter, an operation of the mobile communication system according to the embodiment of the present invention will be described. This mobile communication system is a system that can assign the same telephone number to a plurality of mobile telephone devices 3 and call them simultaneously.

In the following, as a specific example, the user terminal 3 _{#x which} is one of the mobile telephone devices 3 is _replaced with the user terminals 3 _{# 1} to 3 _# 3 included in the mobile telephone devices 3.
Description will be made assuming that _{# 3} is called.

In the following, in order to simplify the description,
A network in which the mobile telephone device 3 including the wireless base station 1 and the mobile communication control station 2 performs communication will be described as a network 4.

In this mobile communication system, one telephone number MS is used for a plurality of user terminals 3 _{# 1 to} 3 _{# 3} .
N “090-xxxx-xxx1” is assigned. That is, the mobile communication control station 2 holds a subscriber number management table as shown in FIG. 3, for example, and stores the MSN “090-xxxx-xxx”.
When "1" is designated and a call is instructed, a process for calling the user terminals 3 _{# 1 to} 3 _{# 3} to which the MSN is assigned is executed. Here, the user terminals 3 _{# 1 to} 3 _{# 3}
Are assigned sub-addresses “0001”, “0002”, and “0003”, respectively, and the sub-addresses correspond to the MSIs assigned to the user terminals 3 _{# 1 to} 3 _{# 3.} Each terminal can be identified. The subscriber number management table includes user terminals 3 _{# 1 to} 3
_The MSN assigned to _{# 3} , the subaddress, and M for identifying each of the user terminals 3 _{# 1 to} 3 _{# 3}
The SI is registered in association with the SI.

The operation when the user terminals 3 _{# 1 to} 3 _{# 3} are called from the user terminal 3 _#x will be described below with reference to the processing sequence shown in FIG.

First, at the user terminal 3 _#x , the MSN “090-xxxx-xxx1” assigned to the user terminals 3 _{# 1 to} 3 _{# 3} is designated by operating the key input unit 12 or the like, and a call is instructed. Then, the communication processing unit 13 sets the operation control unit 1
In accordance with the control of 0, a call setup message including the designated MSN is wirelessly transmitted to the network 4 (step S).
1).

In the network 4, for example, the mobile communication control station 2 searches the subscriber number management table based on the MSN included in the call setup message sent from the user terminal 3 _#x ,
The MSI of the user terminals 3 _{# 1 to} 3 _{# 3} to which the MSN “090-xxxx-xxx1” is assigned is specified. Network 4 creates a paging message sent to the user terminal ₃ # _{1-3 # 3} MSI was identified, by the wireless base station 1 the location registration of the user terminal ₃ # _{1-3 # 3} is made, the user terminal 3 _{# 1}
To _{# 3} (steps S2 to S
4). The user terminals 3 _{# 1 to} 3 _{# 3} receive the paging message sent from the radio base station 1,
Make sure you have an incoming call.

Thereafter, the network 4 is established by the radio base station 1
A call setup message is transmitted to each of the user terminals 3 _{# 1 to} 3 _{# 3} (steps S5 to S7), and a call setup response request sent from each of the user terminals 3 _{# 1 to} 3 _{# 3} in response to the call setup message Receive a message (Steps S8 to S1)
0).

When the network 4 receives the call setting response request message from the user terminals 3 _{# 1 to} 3 _{# 3} , it sends a call setting acceptance display message to the user terminal 3 _#x which is the transmission source (step S11). 3 to notify that there is a response _{# 1-3 # 3.} At this time, when the network 4 receives, for example, the same number of call setting response request messages as the number of user terminals that have sent the call setting message, the network 4 determines that there has been a correct response and sends a call setting acceptance display message to the originating user terminal 3.
_Send to _#x . Alternatively, after transmitting the call setup message, the network 4 transmits the user terminal 3 _{# 1} within a predetermined time.
When receiving a call setting response request message sent from at least one of the user terminals of _{# 3} to _{# 3} , a call setting acceptance display message for notifying the responding user terminal is created, and the originating user terminal 3 _{# x} .

After transmitting the call setup response request message, the user terminals 3 _{# 1 to} 3 _{# 3}
Controls the voice signal processing unit 14 to output a ringing tone, etc., and sends a calling message to the network 4 (steps S12, S14, S15).

The network 4 is, any one of the user terminal ₃ # _{1-3 # 3,} for example in response to a call message received from the user terminal _{3 # 1,} call to the originating user terminal _{3 #x} A message is sent (step S13), and the user terminals 3 _{# 1 to} 3 _{# 3} are notified that the calling operation has started. The user terminal 3 _{#x that} has received the call message displays an image or the like indicating that the user terminals 3 _{# 1 to} 3 _{# 3} are being called by, for example, switching the display of the display unit 15 by the operation control unit 10. .

[0039] After that, for example, in the user terminal 3 _{# 2,} if there is a response to the call operation by, for example, incoming key key input unit 12 is provided (not shown) is depressed, the network 4 from the user terminal 3 _{# 2} (Step S16), and notifies the user terminal 3 _{# 2} that there is a response.

The network 4 transmits a response message corresponding to the response message received from the user terminal 3 _{# 2} to the user terminal 3 _{# 2.
#X} (Step S17). At this time, the network 4 processes the disconnection, release, release completion and message between the user terminals 3 _{# 1} and 3 _{# 3} (step S
18 to S23), the calls of the user terminals 3 _{# 1} and 3 _{# 3} are released.

The source user terminal 3 _{# x that} has received the response message from the network 4 sends a response confirmation message to the network 4 (step S24), and notifies that the response message has been received.

The network 4 sends a response confirmation message corresponding to the response confirmation message received from the user terminal 3 _#x to the user terminal 3 _{# 2} (step S25). Thus, traffic channel between the user terminal _{3 #x} and the user terminal _{3 # 2} is set, the user terminal _{3 #x} and the user terminal _{3 # 2}
(Step S26).

Also, from the user terminal 3 _#x to the user terminal 3
_# Trying to invoke a _1, if at the user terminal 3 _{# 2} as a response to the call operation, and transfers from the user terminal 3 _{# 2} to the user terminal 3 _{# 1.} Hereinafter, with reference to the processing sequence shown in FIG. 5, an operation of transferring to another user terminal after responding to the calling operation will be described.

After the user terminal 3 _{# 2} is ready for communication with the originating user terminal 3 _#x (step S30), the user terminal 3 _{# 2} transmits an additional service message instructing transfer to the user terminal 3 _{# 1} . Transmission to the network 4 (step S3
1). At this time, the user terminal 3 _{# 1} is connected to the user terminal 3 _{# 1}
MSN "090-xxxx-xxx1 0001" including sub address of
And creates a supplementary service message indicating the transfer request, and transmits the supplementary service message to the network 4.

Upon receiving the supplementary service message from user terminal 3 _{# 2} , network 4 confirms that the MSN included in the supplementary service message is registered in the subscriber number management table, A supplementary service message indicating the transfer indication is sent to _#x (step S3)
2) Activate the transfer service by calling the user terminal 3 _{# x}
Notify. At this time, the additional service message sent by the network 4 to the user terminal 3 _#x includes the transfer destination user terminal 3 _{# 1}
The telephone number including the subaddress is included.

User terminal 3 _{# x} sends a transfer display acceptance request to network 4 (step S33), and notifies network 4 that the transfer display has been accepted.

The network 4 includes the user terminal 3_#XTransfer indication received from
When receiving the attachment request, the user terminal 3 _{# 2}Show transfer confirmation to
Send an additional service message (step S3).
4). As a result, the user is informed that the transfer service is to be activated.
The terminal 3_{# 2}Will be notified.

After that, the user terminal 3 _{# 2} transmits a disconnection request to the network 4 in order to release the communication channel with the user terminal 3 _#x (step S35). Net 4 is cut,
After processing the release, release completion and message (steps S36 to S40), the user terminal 3 _#x and the user terminal 3
_The wireless communication line provided with _{# 2} is disconnected.

The user terminal 3 _#x automatically sends a call setup message to the network 4 using the release completion message as an event, and instructs the transfer to the user terminal 3 _{# 1} (step S42). At this time, the information contained in the additional service message indicating the transfer indication in step S32 is used as the telephone number of the call destination (transfer destination).

The network 4 searches the subscriber number management table based on the MSN “090-xxxx-xxx1 0001” including the sub address of the user terminal 3 _{# 1} of the transfer destination.
_{The # 1} MSI “00xxxxxxxx” is specified. Network 4, based on the specified MSI, the wireless base station 1 the location registration of the user terminal 3 _{# 1} is made, the destination of the user terminal 3 _#
1 (step S4).
3). User terminal 3 _{# 1} confirms that there is an incoming call by receiving the paging message sent from wireless base station 1.

Thereafter, the network 4 is established by the radio base station 1
A call setup message is transmitted to user terminal 3 _{# 1} (step S44), and user terminal 3
_A call setting acceptance display message is sent to _#x (step S4).
5) _Notify the user terminal 3 _#x that the call setup has been accepted by the network 4. The network 4 receives the call setting response request message sent from the user terminal 3 _{# 1} in response to the call setting message (step S46).

After transmitting the call setting response request message, the user terminal 3 _{# 1} executes a call operation such as, for example, the operation control unit 10 controlling the voice signal processing unit 14 to output a ringing sound, and also performs a calling operation. The message is sent to the network 4 (step S47).

The network 4 responds to the call message received from the user terminal 3 _{# 1} and sends a call message to the originating user terminal 3 _#x (step S48).
_{In step # 1,} the fact that the calling operation has been started is notified. The user terminal 3 _{#x that} has received the call message displays an image or the like indicating that the user terminal 3 _{# 1} is being called by, for example, switching the display of the display unit 15 by the operation control unit 10.

Thereafter, when there is a response to the calling operation at the user terminal 3 _{# 1} by pressing an incoming key (not shown) provided in the key input section 12, the user terminal 3 _{# 1
# 1} sends a response message to the network 4 (step S4
9) The user terminal 3 _{# 1} notifies that there is a response.

Network 4 sends a response message corresponding to the response message received from user terminal 3 _{# 1} to user terminal 3 _{# 1.
#X} (Step S50). The source user terminal 3 _{#x that} has received the response message from the network 4 sends a response confirmation message to the network 4 (step S51), and notifies that the response message has been received.

The network 4 sends a response confirmation message corresponding to the response confirmation message received from the user terminal 3 _#x to the user terminal 3 _{# 1} (step S52). Thus, a communication channel is set between the user terminal 3 _#x and the user terminal 3 _{# 1} , transfer is completed, and communication between the user terminal 3 _#x and the user terminal 3 _{# 1} becomes possible.

As described above, according to the present invention,
The same telephone number MSN, which is the same telephone number, is assigned to a plurality of mobile telephone devices 3, and the plurality of mobile telephone devices 3 to which the MSN indicated in the call setup message sent from the caller is allocated can be called. As a result, even if the number of subscribers of the mobile communication service increases, the telephone number can be assigned without increasing the telephone number, and the destination can be easily called even when the number of subscribers increases. Also,
By enabling transfer to the mobile telephone device 3 to which the same MSN is assigned, an appropriate destination can be called.

Although the above embodiment has been described assuming that a plurality of mobile telephone devices 3 are called by designating an MSN that does not include a subaddress from the transmission source, the same MSN that includes a subaddress is designated by the same MSN. Only one of the plurality of mobile telephone devices 3 to which the MSN is assigned may be called. In this case, the mobile communication control station 2 searches the subscriber number management table based on the MSN including the subaddress included in the call setup message sent from the caller, specifies one mobile telephone device 3, and performs paging. By sending a message or a call setup message, only one mobile telephone device 3 can be called.

[0059]

As described above, according to the present invention, the same telephone number is assigned to a plurality of mobile telephone devices.
By calling a plurality of mobile telephone devices to which a telephone number designated by a caller is assigned, a destination can be easily called even when the number of subscribers increases.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a mobile communication system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a mobile telephone device.

FIG. 3 is a diagram illustrating a subscriber number management table held by a mobile communication control station;

FIG. 4 is a processing sequence for explaining an operation when calling a plurality of user terminals.

FIG. 5 is a processing sequence for explaining an operation when transferring to another user terminal.

[Explanation of symbols]

_{Reference Signs List} 1 wireless base station 2 mobile communication control station 3 mobile telephone device 3 _{# 1 to} 3 _{# 3} , 3 _{# x} user terminal 4 network 10 operation control unit 11 storage unit 12 key input unit 13 communication processing unit 14 voice signal processing unit 15 display Department

Claims (9)

[Claims] 1. A mobile communication device that provides communication by providing a plurality of mobile telephone devices to which the same telephone number is assigned, and a wireless communication line connecting a communication terminal on a calling side and each of the mobile telephone devices. A communication control station, wherein the mobile communication control station is assigned a telephone number when a telephone number assigned to the plurality of mobile telephone devices is designated by a calling communication terminal and a call is instructed. A mobile communication system, wherein an identification number for identifying each of the mobile telephone devices is specified and each of the mobile telephone devices is called. 2. The mobile communication control station stores a subscriber management table in which telephone numbers assigned to the plurality of mobile telephone devices are registered in association with identification numbers for identifying the mobile telephone devices. When the telephone number is designated from the communication terminal on the calling side and the calling of the plurality of mobile telephone devices is instructed, the telephone number specified by the communication terminal on the calling side is searched by searching the subscriber management table. The mobile communication system according to claim 1, wherein an identification number for identifying each of the mobile telephone devices to which a number is assigned is specified. 3. The mobile communication control station, when a response to a call operation is received in any of the plurality of mobile telephone devices, the mobile communication control station of the mobile telephone device that has not received a response among the plurality of mobile telephone devices. The mobile communication system according to claim 1, wherein the call is released. 4. The mobile communication control station is assigned the same telephone number when receiving a transfer instruction message from one of the plurality of mobile telephone devices that has responded to the calling operation. The mobile communication system according to claim 3, wherein another mobile telephone device is called. 5. Each of the mobile telephone devices is assigned a telephone number including a sub-address, and the mobile communication control station transmits a mobile telephone device that has responded to a calling operation among the plurality of mobile telephone devices. The method according to claim 1, further comprising, upon receiving a transfer instruction message, calling a mobile telephone apparatus to which a subaddress designated as a transfer destination is allocated among other mobile telephone apparatuses to which the same telephone number is allocated. 5. The mobile communication system according to 4. 6. When each mobile telephone device transmits a message instructing transfer, the mobile telephone device notifies the mobile communication control station of a telephone number including a subaddress assigned to the transfer destination mobile telephone device. When the mobile communication control station receives a message indicating a transfer from the mobile telephone device that has responded to the call operation, the mobile communication control station includes a message indicating the transfer including a telephone number including a subaddress assigned to the transfer destination mobile telephone device. Is transmitted to the communication terminal of the calling side, receives a message indicating the transfer confirmation from the communication terminal of the calling side, releases the active call, and sets the transfer destination automatically transmitted from the communication terminal of the calling side. The mobile communication system according to claim 5, wherein a mobile telephone device is called. 7. The same telephone number is assigned to a plurality of mobile telephone devices, and when a call is instructed by a telephone number assigned to the plurality of mobile telephone devices from a communication device on the calling side, the telephone number is assigned. A mobile communication method comprising: identifying an identification number for identifying each of the mobile telephone devices to which the mobile telephone device is assigned; and calling each of the mobile telephone devices. 8. When a telephone number is specified by a communication device on the calling side and a call to the plurality of mobile telephone devices is issued, a telephone number assigned to each of the plurality of mobile telephone devices and each of the mobile telephone devices are stored. By searching a subscriber management table registered in association with an identification number for identification, an identification number for identifying each of the mobile telephone devices to which the telephone number specified by the calling communication device is assigned The mobile communication method according to claim 7, wherein 9. When a message instructing transfer is transmitted from one of the plurality of mobile telephone apparatuses which has responded to the calling operation, another mobile telephone apparatus to which the same telephone number is assigned. The mobile communication method according to claim 7, wherein: