JP4830801B2 - Telephone system - Google Patents

Description

  The present invention relates to a telephone system, and more particularly to a telephone system capable of assigning a fixed telephone number to a mobile telephone.

  Main devices, fixed telephones, wireless base stations, mobile telephones, and the like are used as office telephone systems for offices. The fixed telephone and the radio base station are connected to the main apparatus by wire, and the mobile telephone is connected to the radio base station by radio.

  As a telephone system for a premises, it is common to have one fixed telephone for each person. On the other hand, a mobile phone may be used together for leaving the seat. In this case, it is common to use a small number of mobile telephones in common, and the extension number of the mobile telephone is independent of the fixed telephone and a different number is used.

  For this reason, the members of the group sharing the mobile phone need to know who is using the mobile phone. Here, if the extension number of the mobile telephone can be changed to the same number as the extension number of the fixed telephone, the above-described grasp becomes unnecessary. That is, it is convenient if the extension number is not in a one-to-one relationship with the telephone but can be in a one-to-one relationship with the user as in a mobile phone. In this way, no matter where the user is, he / she can be contacted by calling the extension number representing the user.

  However, when changing the extension number of a fixed telephone or a radio telephone, setting of the apparatus, knowledge of the network, and the like are required, and the work is performed by a construction worker. It was virtually impossible for ordinary users to change the extension number.

  Patent Document 1 describes a technique for easily changing an extension number. In Patent Document 1, when changing the extension number of a wireless telephone, an access code for changing the extension number and a new extension number are input by operating a button. The input access code and extension number are transmitted to the exchange via the radio base station. The exchange determines whether there is a problem with the transmitted extension number. If there is no problem, the exchange transmits a rewrite signal to the radio telephone via the radio base station.

JP 2000-261838 A

In Patent Document 1, when changing an extension number, an access code is input. However, since this is common to all, there is a problem in terms of security. If the access code is leaked, it is necessary to change the access code. In addition, everyone must be notified of access code changes.
An object of the present invention is to provide a telephone system for associating a small number of portable terminals with easily changeable extension numbers as one password corresponding to one extension number in order to solve the above-described problems. It is in.

Problems described above, a main unit that houses the external and internal, fixed telephone connected to the extension, and a radio base station, in a telephone system comprising a mobile telephone connected to the radio base station, the mobile phone When a password is input by a predetermined operation, the main device is notified of this password, and when the remaining battery level in the mobile phone falls below a predetermined value, the transfer setting set by the main device is canceled. When the main device holds a comparison table of passwords and extension numbers of fixed telephones in advance , and the password is notified from the mobile phone, the notified password is notified to the main device. the reference to the reference table to the key, the association and the corresponding extension mobile telephone, forwards set the incoming call to the appropriate extension to the mobile telephone, notification of the transfer setting cancel request from a mobile telephone When the, by the telephone system to cancel the transfer setting to the mobile phone, it can be achieved.

  According to the present invention, the right to use the extension number is transferred to the mobile phone only when the user is away from his / her seat where the fixed phone is located, and the right to use is returned to the fixed phone when the use is finished. According to this telephone system, it is only necessary to have as many mobile telephones as the number of people who leave the seat at the same time, so that the telephone system can be constructed at an optimum cost.

  Embodiments of the present invention will be described below with reference to FIGS. 1 to 10 using examples. Note that the same reference numerals are assigned to the same parts, and description thereof is not repeated. FIG. 1 is a block diagram for explaining the configuration of the extension telephone system. FIG. 2 is a diagram for explaining a table registered in the internal memory of the mobile telephone. FIG. 3 is a diagram for explaining a table of the fixed telephone registered in the internal memory of the main apparatus. FIG. 4 is a diagram for explaining a mobile telephone table registered in the internal memory of the main apparatus. FIG. 5 is a flowchart of registration of the corresponding fixed telephone number of the mobile phone. FIG. 6 is a flowchart of registration of the corresponding fixed telephone number of the main apparatus. FIG. 7 is a flowchart for adding an extension number of a mobile telephone. FIG. 8 is a flowchart for adding the extension number of the main apparatus. FIG. 9 is a flowchart for deleting an extension number of a mobile telephone. FIG. 10 is a flowchart for deleting the extension number of the main apparatus.

  In FIG. 1, an extension telephone system 100 includes a main apparatus 10, a radio base station 20, four fixed telephones 30, and three mobile telephones 40. A charger 50 is assigned to each mobile phone 40. Here, the number of radio base stations 20, fixed telephones 30, and mobile telephones 40 is not limited to that shown in FIG.

  The main device 10 is a device that exchanges and connects an external line (public telephone network), a fixed telephone, and a mobile telephone line, and includes a line switching unit 11, an internal memory 12, a control unit 13, and an external line unit 14. The line switching unit 11 switches lines according to instructions from the control unit 13 and exchanges and connects the outside lines and the lines of the fixed telephone 30 and the mobile telephone 40. The internal memory 12 stores a program for operating the main device and information on the fixed telephone and the mobile telephone. The contents of information related to fixed telephones and mobile telephones will be described later. The control unit 13 uses the information stored in the internal memory 12 to control outgoing and incoming calls of the fixed telephone and the mobile telephone. The external line unit 14 is a unit that connects a public telephone network (not shown) and the internal telephone system 100.

The radio base station 20 is connected to the main apparatus 10 by wire and is connected to the mobile phone 40 by radio. By this connection, information is transmitted and received.
The fixed telephone 30 is connected to the main apparatus 10 by wire, and includes a control unit 31, an internal memory 32, an operation unit 33, a display unit 34, and a voice input / output unit 35. The control unit 31 controls outgoing / incoming calls using a program stored in the internal memory 32. The internal memory 32 stores a program for operating the fixed telephone 30 and the like. The operation unit 33 includes buttons and inputs a dial number and the like. The display unit 34 includes a display and displays various information. The voice input / output unit 35 includes a microphone and a speaker, and inputs and outputs voice.

  Here, the fixed telephone 30-0 is associated with the extension number 100, the fixed telephone 30-1 is associated with the extension 101, the fixed telephone 30-2 is associated with the extension 102, and the fixed telephone 30-3 is associated with the extension 103.

  The mobile telephone 40 is wirelessly connected to the radio base station 20 and includes a transmission / reception unit 41, a control unit 42, an internal memory 43, an operation unit 44, a charge detection unit 45, a display unit 46, and a voice input / output unit 47. The transmission / reception unit 41 includes an antenna, and transmits and receives information and audio data wirelessly. The control unit 42 uses the program stored in the internal memory 43 to control incoming / outgoing calls and transmission / reception of voice / information. The internal memory 43 stores a program for operating the mobile telephone 40 and information on the mobile telephone 40. The contents of the information of the mobile phone 40 will be described later. The operation unit 44 includes buttons and inputs a dial number and the like. When the mobile phone 40 is connected to the charger 50, the charge detector 45 detects that charging is in progress. The display unit 46 includes a display and displays various information. The voice input / output unit 47 includes a microphone and a speaker, and inputs and outputs voice.

Here, the mobile phone 40-0 is associated with the unique number 200, the mobile phone 40-1 is associated with the unique number 201, and the mobile phone 40-2 is associated with the unique number 202.
The charger 50 charges a battery (not shown) of the mobile phone 40.

  Information stored in the internal memory of the mobile telephone will be described with reference to FIG. In FIG. 2, the internal table 60-0 is stored in the internal memory 43 of the mobile telephone 40-0, the internal table 60-1 is stored in the mobile telephone 40-1, and the internal table 60-2 is stored in the internal memory 43 of the mobile telephone 40-2. It is. The PS number 61 of the internal table 60 is information for identifying the mobile telephone 40. The unique number 62 of the internal table 60 is a number unique to the mobile phone that is not used by the fixed telephone 30. The unique number 62 is also an extension number of the mobile phone 40 added when the mobile phone 40 is registered in the main apparatus 10.

  The mobile telephone 40 uses the unique number 62 and the extension number of the fixed telephone 30 at the same time. Here, the unique number 62 is always usable, and the extension number of the fixed telephone 30 is temporarily added according to the occasion, and is deleted when it becomes unnecessary. The temporary registration number 63 of the internal table 60 stores the extension number of the fixed telephone. Here, when “0” is stored in the temporary registration number 63, it means that the extension number of the fixed telephone 30 is not registered.

  The personal data 64 in the internal table 60 collectively stores various settings such as a telephone directory common to the fixed telephone, a call history, and a mobile phone ring melody. The personal data 64 is information that is combined with the temporary registration number 63. At the same time as the temporary registration number 63 is added / erased, the personal data 64 moves between the fixed telephone 30 and the mobile telephone 40. Here, when “0” is stored in the personal data 64, it means that the personal data of the fixed telephone 30 is not registered.

  As is clear from the above description, the extension number of the mobile phone 40-0 is only 200, the extension numbers of the mobile phone 40-1 are 201 and 101, and the extension numbers of the mobile phone 40-2 are 202 and 102. It is.

  Information stored in the internal memory of the main apparatus will be described with reference to FIGS. In FIG. 3, the fixed telephone table 70 includes a number 71, a password 72, and personal data 73. Reference numeral 71 is an extension number of the fixed telephone 30, and the fixed telephone is identified by the number 71. The password 72 is a password that is input when performing extension number addition processing of the mobile telephone. When registration of a corresponding fixed telephone number described later is completed, a password 72 is added. The fixed telephone 30 with the extension number in which “0” is stored in the password 72 means that the corresponding fixed telephone number is not registered.

  In FIG. 3, fixed telephones 30-0 to 30-2 having extension numbers 100 to 102 are registered as corresponding fixed telephone numbers, and the password 72 is a four-digit number, but a five-digit number and a symbol. Or a six-digit character string, and the number of digits is arbitrary. The personal data 73 is the same as that described with reference to FIG.

  In FIG. 4, the mobile telephone table 80 is composed of a PS number 81, a unique number 82, a temporary registration number 83, and a corresponding fixed telephone number 84. The PS number 81 is information for identifying a mobile phone. The unique number 82 stores the unique number of the mobile telephone 40. The temporary registration number 83 stores which extension number of the mobile telephone is currently. The corresponding fixed telephone number 84 is an extension number of the fixed telephone that can be added by the mobile telephone.

  Here, the corresponding fixed telephone number 84 is common to all mobile telephones. However, a group ID column may be provided in the mobile telephone table 80, and the corresponding fixed telephone number 84 may be shared by mobile telephones having the same group ID. This is convenient when allocating mobile telephones that can be used in units of departments or sections.

Next, operations of the mobile phone and the main apparatus will be described with reference to FIGS.
In FIG. 5, the mobile telephone 40 registers the corresponding fixed telephone number so that the extension number of the fixed telephone 30 can be used in the following procedure. Here, the corresponding fixed telephone number is an extension number of the fixed telephone 30 that can be added to the mobile telephone 40. This operation is for registering a password in the corresponding fixed telephone number, and the corresponding fixed telephone number cannot be used on the mobile telephone 40 unless this operation is performed.

  The user of the mobile phone 40 operates the operation unit 44 to start the corresponding fixed telephone number registration program (mobile phone) stored in the internal memory 43. When the program is started, the mobile telephone 40 requests the input of the extension number and password of the fixed telephone to which the right of use is transferred to the user by display and voice (S501). The mobile telephone 40 waits for an extension number and password (S502), and transmits the input extension number and password to the main apparatus 10 via the transmission / reception unit 41 and the radio base station 20 (S503). The mobile telephone 40 determines whether or not there is a re-input request from the main apparatus 10 (S504), and if YES, returns to step 501. If NO in step 504, it is determined whether a corresponding fixed telephone number registration end signal has been received from main apparatus 10 (S505). If step 505 is YES, the mobile telephone 40 outputs registration completion via the display and voice (S506) and then ends. If step 505 is NO, the mobile phone 40 returns to step 504.

  In FIG. 6, the main apparatus 10 waits for an extension number and a password (S601). When the extension number and password are input (S601: YES), the main apparatus 10 first determines whether the received extension number is the extension number used by the fixed telephone 30 (S602). If it is determined in step 602 that the number is not used by the main apparatus 10 (NO), a signal requesting re-input is sent (S606), and the process ends. If it is determined in step 602 that the main apparatus 10 is in use (YES), the main apparatus 10 next determines whether there is a problem with the password (S603). In step 603, it is determined whether the password is a prescribed one (here, a four-digit numerical value) or whether the password is already used for another extension number. If there is a problem in step 603 (NO), a re-input request signal is sent (S606), and the process ends. If there is no problem at step 603 (YES), the main apparatus 10 stores the input password in the password 72 of the record of the input extension number in the fixed telephone table 70 stored in the internal memory 12. (S604). Also, a corresponding fixed telephone number registration end signal is sent to the mobile telephone 40 (S605), and the process ends.

  In the embodiment described above, the corresponding fixed telephone number is registered from the mobile telephone 40. Similarly, the corresponding fixed telephone number can also be registered from the fixed telephone 30. The fixed telephone 30 is operated to start a corresponding fixed telephone number registration (fixed telephone) program. According to the program, the user of the fixed telephone 30 inputs a password. The fixed telephone 30 transmits the input information to the main device 10. The main device 10 determines whether the password is appropriate. If appropriate, main apparatus 10 registers the password in association with the extension number of fixed telephone 30 that transmitted the password, and ends the process.

Next, the operation of adding the extension number of the fixed telephone 30 to the mobile telephone 40 whose extension number is only a unique number will be described with reference to FIGS.
In FIG. 7, when the user picks up the mobile phone 40 whose extension number is only a unique number from the charger 50, or when the user operates the operation unit 44 of the mobile phone 40, the mobile phone 40 is stored in the internal memory 43. The stored extension number adding program (mobile telephone) is started. The mobile phone 40 displays on the display unit 46 that it is waiting for a password (S701). The mobile phone 40 transitions to a password input wait state (S702). When the password is input in step 702 (YES), the mobile telephone 40 transmits the extension number addition start signal and the input password to the main apparatus 10 via the radio base station 20 and the line switching unit 11 ( S703).

  The mobile telephone 40 determines whether a re-input request has been received (S704). If YES, the mobile telephone 40 returns to step 701. If NO in step 704, the mobile telephone 40 determines whether an extension number addition enable signal has been received from the main apparatus 10 (S705). When YES, since the extension number addable signal includes the extension number to be registered, the mobile telephone 40 registers the received extension number in the temporary registration number 63 of the internal table 60 (S706). The mobile phone 40 waits for reception of personal data (S707), and rewrites the received personal data (S708). Finally, a display to the effect that “addition of the extension number has been completed” is temporarily performed (S709), and the process ends.

  If NO in step 705, the mobile telephone 40 determines whether an extension number addition impossible signal has been received (S711). Here, when NO, the processing transitions to step 704. If YES in step 711, the mobile telephone 40 displays on the display unit 46 that “this extension is already being used by another mobile telephone” (S712), and waits for the user to cancel the process. (S713). When step 713 is YES, the mobile telephone 40 transmits an extension number addition stop signal to the main apparatus 10 (S715), and ends. When NO in step 713, the mobile telephone 40 transmits an extension number addition continuation signal to the main apparatus 10 (S714). The extension number continuation is a forced change, and the extension number addition impossible signal received in step 711 also includes the extension number corresponding to the password. Transition to processing.

  By the above processing, the extension number of the fixed telephone is added to the mobile telephone 40. Before executing the process, the extension number of the mobile telephone 40 was only the unique number 201, but after that, the extension number of the fixed telephone can be used. In addition, since the personal data information is also moved, the same phone book data and outgoing / incoming call history as those of the fixed telephone can be used.

  In FIG. 8, the main device 10 waits for reception of a password and extension number addition start signal (S801), and when received (YES), determines whether the password is correct (S802). Specifically, the password 72 of the fixed telephone table 70 in the internal memory 12 is referred to and it is determined whether there is a match. If the received password is not stored in the internal memory 12, that is, if it is wrong, the control unit 13 transmits a signal requesting re-input of the password via the line switching unit 11 and the radio base station 20 ( S803), and ends. If the password is correct in step 802 (YES), it is next determined whether or not the extension number indicated by the password is already used by another mobile telephone (S804). Of the information on the mobile phone stored in the internal memory 12, the temporary registration number is referred to for determination. If it is not used by another mobile phone (NO), the main apparatus 10 sends an extension number addition possible signal including an extension number to the mobile phone 40 (S805). Further, the temporary registration number information in the mobile telephone table 80 stored in the internal memory is rewritten (S806). Next, the personal data information in the fixed telephone table 70 in the internal memory is transmitted to the mobile telephone 40 (S808). The main apparatus 10 transmits a use stop signal to the fixed telephone 30 having the extension number added to the mobile telephone 40 via the line switching unit 11 (S809), and the process is terminated.

  Although not shown, the fixed telephone 30 that has received the use stop signal starts a use stop program stored in the internal memory 32. When the program is started, the fixed telephone 30 displays on the display unit 34 that “this extension number is used by the mobile telephone”. At this time, the fixed telephone 30 may be unable to operate a button or the like even if it cannot perform operations such as making and receiving calls. With the above operation, the extension number of the fixed telephone can be used by the mobile telephone 40 and cannot be used by the fixed telephone 30. The right to use the extension number is transferred from the fixed telephone 30 to the mobile telephone 40.

  Returning to FIG. 8, when the extension number to be added has already been used in another mobile telephone 40B in step 804 (YES), the main apparatus 10 sends an extension number addition impossible signal to the mobile telephone 40. Is transmitted (S810). The main apparatus 10 determines whether an extension number addition stop signal has been received from the mobile telephone 40 (S811). If YES, the process ends. If NO, it is determined whether an extension number addition continuation signal has been received from the mobile telephone 40 (S812). If NO, the process returns to step 811. If YES in step 812, an extension number forced erasure signal is transmitted to the mobile telephone 40B that already uses the extension number to be added. The main apparatus 10 performs the same operation after step 806. Note that even if the fixed telephone 30 whose use right has already been stopped receives a use stop signal, the fixed telephone 30 does not perform any operation. The operation of the mobile telephone 40B that has received the extension number forced erasure signal will be described later.

  An operation when an incoming call is received at the extension number whose usage right has been moved to the mobile telephone 40 will be described. The control unit 13 of the main apparatus 10 always keeps track of the temporary registration number 83 of the mobile telephone table 80 stored in the internal memory 12. When an incoming call is received at the corresponding extension number, the control unit 13 determines whether the extension number is used by the mobile telephone 40 and switches the destination. If the extension number that received the incoming call is not included in the temporary registration number information, the line switching unit 11 is instructed to receive the incoming call to the fixed telephone 30 as it is. When the extension number is in the temporary registration number information, the line switching unit 11 is instructed to change the destination of the corresponding mobile telephone 40. By the operation as described above, when an incoming call is received for the extension number whose usage right has been moved to the mobile phone, the destination can be switched to the mobile phone 40.

  Next, erasure of the added extension number will be described with reference to FIGS. Here, erasing means changing the extension number added to the mobile telephone 40 to an unusable state, and the extension number of the mobile telephone 40 is only a fixed number.

  In FIG. 9, the mobile phone 40 detects the start of charging (S901: YES), receives an extension number forced erasure signal (S902: YES), or passes a fixed time after adding an extension telephone number (S903: YES). ) When any of the conditions when the battery warning sound is transmitted (S904: YES) is satisfied, an automatic erasure signal is transmitted to the main apparatus 10 (S905). Next, the mobile telephone 40 deletes the temporary registration number 63 (S913) and transmits the personal data 64 to the main apparatus 10 (S914). The mobile telephone 40 deletes the personal data 64 (S915) and ends.

  When all of steps 901 to 904 are NO, it is determined whether manual erasure has been executed (S906). If NO here, the process returns to the step 901. In step 906, the user of the mobile telephone 40 operates the operation unit 44 of the mobile telephone 40 to which the extension number has been added to start the extension number manual deletion program (move) stored in the internal memory 43 ( S906: YES). The mobile telephone 40 displays to the user that “Please enter the password” by display or voice (S907). The mobile telephone 40 waits for the user's password input (S908), and receives the input and transmits a manual erasure signal to the main apparatus 10 (S909). The mobile telephone 40 transmits the input password to the main apparatus 10 (S910).

  The mobile telephone 40 that has transmitted the manual deletion signal and the password to the main apparatus 10 waits for a re-input request from the main apparatus 10 (S911), and proceeds to step 907 when YES. If NO in step 911, the system waits for reception of an extension number erasure signal from main apparatus 10 (S912). When the extension number erasure signal is received here, the process proceeds to step 913. By the above operation, the added extension number of the mobile telephone 40 is erased and changed so that only the unique number can be used.

  In FIG. 10, the main apparatus 10 determines reception of an automatic erasure signal from the mobile telephone 40 (S101). When step 101 is NO, it is determined whether a manual erasure signal is received from the mobile telephone 40 (S102). When step 102 is NO, the main apparatus 10 transitions to step 101. If YES in step 101, the main apparatus 10 deletes the temporary registration number 83 of the mobile telephone table 80 corresponding to the mobile telephone 40 (S106), and waits for reception of personal data from the mobile telephone 40 (S108). When the main device 10 receives the personal data (S108: YES), the main device 10 stores the personal data in the record of the corresponding telephone number in the fixed telephone table 70 (S109), and transmits a use suspension release signal to the corresponding fixed telephone 30. (S110), the process ends.

  Although not shown, the fixed telephone 30 that has received the use stop release signal activates a use stop release program stored in the internal memory 32. The program deletes the indication that “this extension is being used by the mobile phone” and changes it so that incoming / outgoing calls and button operations can be performed again.

  When YES in step 102, the main apparatus 10 waits for reception of a password from the mobile telephone 40 (S103). When receiving the password (YES), the main apparatus 10 determines whether the password is correct (S104). If NO, the main apparatus 10 transmits a re-input request to the mobile telephone 40 (S107) and ends. When YES at step 104, main apparatus 10 transmits an extension number erasure signal to mobile telephone 40 (S105), and transitions to step 106.

  Other operations will be described. When changing the password, the operation unit 44 of the mobile telephone 40 is operated to start the password change processing program (move) stored in the internal memory 43. The program prompts for an old password and a new password. The input information is transmitted to the control unit 13 via the transmission / reception unit 41, the radio base station 20, and the line switching unit 11. When the control unit 13 receives this information, the password change processing program (main device) stored in the internal memory 12 is activated. The program determines whether the old password is correct. Of the information related to the fixed telephone stored in the internal memory 12, the password item is referenced to determine whether it is correct. If it is determined to be wrong, a password change impossible signal is transmitted to the mobile telephone 40, and the program is terminated. If the old password is correct, it is next determined whether the new password is correct. If it is determined that the error has occurred because it has already been used for another extension number, a password change impossible signal is transmitted to the mobile telephone 40. If it is determined to be correct, the password is rewritten in the information related to the fixed telephone stored in the internal memory 12. Also, a password change enable signal is transmitted to the mobile telephone 40, and the program is terminated. The mobile telephone 40 that has received the password change impossible signal displays a message that the old password is incorrect or the new password cannot be used on the display or voice of the display unit 46 and ends the program. The mobile phone 40 that has received the password change enable signal displays a message “Password change is complete” on the display of the display unit 46 and the program ends.

  It is possible to grasp which extension number the mobile telephone 40 is currently in by referring to the internal memory 12 of the main apparatus 10. Accordingly, it is possible to display which extension number the mobile telephone 40 is using by operating the mobile telephone 40 or the fixed telephone 30 and making the control unit 13 refer to the internal memory 12.

  If the extension telephone number automatic erasure operation does not work well and the mobile telephone 40 is lost with the right to use, for example, as a remedy when the battery runs out of service area, the fixed telephone 30 By inputting the password, the right to use the extension number may be forcibly returned to the fixed telephone. At this time, when the mobile telephone 40 is restored, the corresponding extension number is automatically deleted.

It is a block diagram explaining the structure of an extension telephone system. It is a figure explaining the table registered into the internal memory of a mobile telephone. It is a figure explaining the table of the fixed telephone registered in the internal memory of the main unit. It is a figure explaining the table of the mobile telephone registered into the internal memory of the main apparatus. It is a flowchart of the corresponding | compatible fixed telephone number registration of a mobile telephone. It is a flowchart of corresponding fixed telephone number registration of the main unit. It is a flowchart of the extension number addition of a mobile telephone. It is a flowchart of the extension number addition of the main apparatus. It is a flowchart of the extension number deletion of a mobile telephone. It is a flowchart of the extension number deletion of the main apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Main apparatus, 11 ... Line switching part, 12 ... Internal memory, 13 ... Control part, 14 ... External line unit, 20 ... Wireless base station, 30 ... Fixed telephone, 31 ... Control part, 32 ... Internal memory, 33 ... Operation 34, display unit, 35 ... voice input / output unit, 40 ... mobile telephone, 41 ... transmission / reception unit, 42 ... control unit, 43 ... internal memory, 44 ... operation unit, 45 ... charge detection unit, 46 ... display unit, 47 ... voice input / output unit, 50 ... charger, 60 ... internal table, 70 ... fixed telephone table, 80 ... mobile telephone table, 100 ... extension telephone system.

Claims (2)

In a telephone system comprising a main unit that accommodates external lines and internal lines, a fixed telephone connected to the internal line, a radio base station, and a mobile telephone connected to the radio base station,
The mobile phone, when a password is inputted by a predetermined operation, and notifies the password to the main unit, when the remaining amount of the battery in the own mobile telephone falls below a predetermined value, the main device is set A transfer setting release request for requesting to release the transferred transfer setting is sent to the main device,
The main device holds a comparison table of passwords and extension numbers of fixed telephones in advance, and when the mobile phone is notified of the password, it refers to the comparison table using the notified password as a key, and corresponds. An extension number is associated with the mobile phone, an incoming call to the corresponding extension number is set to be transferred to the mobile phone, and when the transfer setting release request is notified from the mobile phone, a transfer setting to the mobile phone is set. A telephone system characterized by releasing . The telephone system according to claim 1,
While the main apparatus is set to transfer to the mobile telephone, the main apparatus displays to the fixed telephone corresponding to the extension number that the incoming call to the fixed telephone is set to transfer to the mobile telephone. A featured telephone system.

Images