JP2008092189A - Key telephone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the control of connection between a key slave telephone and a portable telephone by a main apparatus in a key telephone system receiving a call to the portable telephone system through the key slave telephone. <P>SOLUTION: When talking with a caller via the portable telephone 5 in the key slave telephone 4A (procedure S6), and an extension call is transmitted to the key slave telephone 4A (procedure S7), the master apparatus 2 transmits a state inquiry signal to the key slave telephone 4A (procedure S8). The key slave telephone 4A transmits, talking with the caller via the portable telephone 5, in-use response (NACK) (procedure S9). The master apparatus 2 generates a busy tone based on reception of the in-use response and transmits it to the key slave telephone 4B (procedure S10). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a button telephone system capable of responding to incoming calls on a mobile phone with a button telephone handset, and more particularly to the above button telephone system that eliminates management of connection between the button telephone handset and the mobile telephone by a main device. .

  Conventionally, in a button telephone system consisting of a main unit and a plurality of button telephone slave units accommodated in the extension, the incoming call to the mobile phone is transferred to the button telephone slave unit by short-range wireless communication to the button telephone slave unit. There has been proposed a button telephone system that enables a call between a button telephone slave unit and a caller of an incoming call to a mobile phone by making an incoming call and responding to the incoming call with the button telephone slave unit (Patent Document 1). reference).

  In this button telephone system, the button telephone handset responding to the incoming call to the mobile phone notifies the main device that it is in use, and the main device sends the notification to the mobile phone. Know that you are answering an incoming call. When the main device receives a call request from the extension or the like to the key telephone handset, the main device transmits a busy to the call request source.

  However, in this button telephone system, the main device is connected to the button telephone slave unit and the mobile phone in addition to the general management of the button telephone slave unit such as extension call and external line call of the button phone slave unit. Therefore, there is a problem that the processing load of the main device increases, especially when the number of button telephone cordless handsets increases.

JP 2005-294969 A

  The present invention has been made to solve such problems, and an object of the present invention is to provide a button telephone system that can respond to an incoming call to a cellular phone using a button telephone slave unit. The management of the connection with the mobile phone is unnecessary.

The invention of claim 1 is a button telephone system comprising a main device and a plurality of button telephone cordless handsets accommodated in the extension of the main device, and capable of responding to incoming calls to a mobile phone by the button phone cordless handset. The button telephone handset includes means for managing connection with the mobile phone, and means for responding to an inquiry from the main device. The means for responding includes the button telephone handset and the mobile phone. When the and are connected, a response in use is performed.
According to a second aspect of the present invention, in the button telephone system according to the first aspect, when the connection is established, the telephone is busy or on hold.
According to a third aspect of the present invention, there is provided the key telephone system according to the first aspect, wherein the button telephone handset is based on an operation of forwarding a response to an incoming call to the mobile phone to another button telephone handset. The voice signal from the main device is sent to the main device, and the voice signal from the main device is sent to the mobile phone.

(Function)
According to the first aspect of the present invention, when a line is connected to the cellular phone, the key telephone handset responds to the inquiry from the main unit in use.
According to the second aspect of the present invention, the key telephone handset responds to the inquiry from the main unit when it is in a call with the mobile phone or is on hold.
According to the invention of claim 3, the key telephone handset receives the voice signal from the mobile phone to the main device based on an operation of transferring a response to the incoming call to the mobile phone to another button telephone handset. The voice signal from the main device is sent to the mobile phone.

  According to the present invention, in a button telephone system that can respond to an incoming call to a mobile phone with a button telephone handset, management of connection between the key telephone handset and the mobile telephone by the main device becomes unnecessary.

  FIG. 1 is a diagram showing a configuration of a button telephone system according to an embodiment of the present invention. This button telephone system 1 includes a main apparatus 2 and a plurality of button telephone slave units 4A, 4B,... 4N accommodated in the extension. The button telephone handset 4A can communicate with a nearby mobile phone 5 via a local wireless transmission path (short-range wireless transmission path) 38 such as Bluetooth (registered trademark).

  The main device 2 includes a microcomputer having a CPU, a ROM, and a RAM, manages the state of the telephone line 10 and the button telephone slave units 4A, 4B,... 4N, and controls the main device 2 as a whole. , An external line I / F (interface) unit 12 for terminating control of the telephone line 10, and an extension I / F that accommodates the button telephone cordless handsets 4A, 4B,. In association with the exchange processing unit 14 for exchanging and connecting the unit 13, the external line I / F unit 12, and the internal line I / F unit 13, control information necessary for control by the control unit 11, external line information, extension information, etc. And a storage unit 15 for storing.

  FIG. 2 is a block diagram showing a configuration example of the key telephone handset 4A. The button telephone handset 4A includes a microcomputer having a CPU, a ROM, and a RAM. The handset control section 21 that controls the entire button telephone handset 4A and the like are connected to the handset control section 21. The extension I / F unit 22, the wireless I / F unit 23, the voice processing unit 24, the display unit 25, the key input unit 26, and the storage unit 27 are provided.

  The extension I / F unit 22 communicates with the main apparatus 2 via the extension transmission path 3, and the wireless I / F part 23 communicates with the mobile phone 5 </ b> A via the radio transmission path 38. The voice processing unit 24 includes a voice signal amplifier, a speaker, a receiver, and the like, and performs input / output of call voice and output of ringing sounds and various notification sounds. The display unit 25 includes an LED (Light Emitting Diode) and an LCD (Liquid Crystal Display), and displays various types of information sent from the slave unit control unit 21 and various types of information input from the key input unit 26. The key input unit 26 includes various keys such as a dial key, an outside line key, and a hook key, and sends information input by the user using these keys to the slave unit control unit 21. The storage unit 36 is a memory that stores various information used for processing operations in the slave unit control unit 37.

  Here, the storage unit 27 stores a program used by the slave unit control unit 21 for control and management of the wireless I / F unit 23. The slave unit control unit 21 communicates with the mobile phone 5. The connection control of the wireless transmission path 38 can be performed without being controlled by the main apparatus 2. The storage unit 27 receives the inquiry about the state of the key telephone handset 4A from the main unit 2 via the extension I / F unit 22, and the connection relationship between the mobile phone 5 and the wireless transmission path 38 is connected. In response to this, a program for transmitting a response is stored.

  It should be noted that the configuration of the other button telephone slave unit 4B and the like is the means for communicating with the cellular phone 5 from the configuration of the button telephone slave unit 4A described above (the wireless I / F unit 23, the slave unit control unit 21 is a wireless I / O). / F section 23 is excluded.

  FIG. 3 is a block diagram illustrating a configuration example of the mobile phone 5. The mobile phone 5 includes a microcomputer having a CPU, a ROM, and a RAM. The mobile control unit 31 controls the mobile phone 5 as a whole, and a local wireless I / F connected to the mobile control unit 31. Unit 32, public wireless I / F unit 33, voice processing unit 34, display unit 35, key input unit 36, and storage unit 37.

  The local wireless I / F unit 32 has a function of communicating with the button telephone cordless handset 4A via the wireless transmission path 38, and the public wireless I / F unit 33 is illustrated via a public telephone line (wireless or wired). It has a function to communicate with a mobile phone or a fixed phone that is not used. The voice processing unit 34 includes a voice signal amplifier, a speaker, a microphone, and the like, and performs input / output of call voice and output of ringing sounds and various notification sounds. The display unit 35 includes an LED and an LCD, and displays various information sent from the portable control unit 31 and various information input from the key input unit 36. The key input unit 36 includes various keys such as a dial key, an outside line key, and a hook key, and sends information input by the user using these keys to the portable control unit 31. The storage unit 37 is a memory that stores various types of information used for processing operations in the portable control unit 31. Here, telephone book data 37a is illustrated as various types of information.

  Thus, the cellular phone 5 is a commercially available cellular phone that can be connected to the outside line via a public telephone line, and forms a wireless transmission path 38 in cooperation with the button telephone slave unit 4A. Any device having a function of communicating with 4A may be used. And in order to form the wireless transmission path 38 and to enable communication, the communication partner is registered in the storage units 27 and 37 in advance.

  Regarding the operation of the button telephone system 1 having the above configuration and the cellular phone 5, [1] When the incoming call to the cellular phone 5 is answered by the button telephone slave unit 4A, [2] the button telephone slave unit 4A When an extension call is received from the main unit 2 during a call with the caller of the public telephone line via [3], the incoming call to the cellular phone 5 is received by the button telephone handset 4A and then transferred to another button telephone handset. In this case, [4] a description will be given in the order in which a call operation is performed from the button telephone handset 4A using the telephone directory data of the mobile phone 5.

[1]
When an incoming call to the cellular phone 5 is answered by the button telephone cordless handset 4A (see the sequence diagram shown in FIG. 4)
A call is made to the mobile phone 5 based on the call origination operation of the caller connected through the public telephone line (step S1), and the mobile phone 5 is received. In the mobile phone 5, without displaying the incoming call, the mobile control unit 31 generates a state inquiry signal for the button telephone handset 4 </ b> A and performs control so as to be transmitted from the local wireless I / F unit 32 to the wireless handset 4 </ b> A. (Procedure S2).

  When the button telephone handset 4A receives the inquiry signal and is not in use, the handset controller 21 transmits an incoming call ready response (ACK) to the mobile phone 5 (step S3). When the mobile phone 5 receives the incoming call response (ACK), it performs communication (negotiation) with the button telephone handset 4A (step S4). By this communication, a ringback tone is output from the button telephone handset 4A. When the user of the button telephone handset 4A performs a response operation, a response notification is transmitted to the mobile phone 5 (step S5). The mobile phone 5 connects a communication path between the wireless slave device 4A and the source of the mobile phone 5 based on the reception of the response notification. As a result, the wireless slave unit 4A and the caller of the mobile phone 5 are busy (step S6).

  If the button telephone handset 4A is in use when the state inquiry signal is received from the mobile phone 5, it transmits a non-callable response (NACK). In this case, the mobile phone 5 displays the incoming call based on the reception of the incoming call impossible response, and the button telephone handset 4A does not display the incoming call. Therefore, the mobile phone 5 performs the incoming call response only. However, the mobile phone 5 may be configured to display the incoming call on the mobile phone 5 and to display the incoming call on the key telephone handset 4A when the key telephone handset 4A is not in use. In the case of such a configuration, a response operation can be performed by either the cellular phone 5 or the key telephone handset 4A.

[2] When the button telephone handset 4A receives an extension call from the main unit during a call with the source of the public telephone line via the mobile phone 5 (sequence diagram shown in FIG. 5)
Here, the procedure until the caller of the mobile phone 5 and the button telephone handset 4A are busy is the same as that in FIG. 4 and will not be described. The subsequent steps will be described.

  Based on the call operation from the key telephone handset 4B accommodated in the extension of the main device 2 to the key phone handset 4A, the extension is transmitted from the handset 4B to the main device 2 (step S7). The main device 2 receives this extension transmission and transmits a state inquiry signal to the key telephone handset 4A (step S8). Since the button telephone handset 4A is in a call with the caller via the mobile phone 5, it transmits a busy response (NACK) (step S9). Based on the reception of the busy response, the main device 2 generates a busy tone and transmits it to the button telephone handset 4B (step S10).

  Here, in response to the status inquiry signal (procedure S8) from the main device 2, the key telephone handset 4A determines its own state and transmits a busy response (NACK). Instead of having the function of determining its own usage state, the mobile phone 5 may be configured to have that function. In the case of this configuration, the key telephone handset 4 </ b> A transfers the status inquiry signal from the main device 2 to the mobile phone 5 and transfers the busy response from the mobile phone 5 to the main device 2. Although the operation when called from the extension cordless handset 4B is shown here, the same operation is performed when the main device 2 calls the key telephone cordless handset 4A based on the incoming call from the outside line.

  Thus, in the key telephone system of this embodiment, the key telephone handset 4A manages the connection with the mobile phone 5, and in response to an inquiry from the main device 2, wireless transmission with the mobile phone 5 is performed. Since the response is transmitted according to the connection state (connection, disconnection), etc. of the line 38, the main device 2 does not need to manage the connection between the button telephone slave unit 4A and the mobile phone 5.

[3] When an incoming call to the cellular phone 5 is received by the key telephone handset 4A and then transferred to another key telephone handset (see the sequence diagram shown in FIG. 6)
Here, the procedure until the caller of the mobile phone 5 and the button telephone handset 4A are busy is the same as that in FIG. 4 and will not be described. The subsequent steps will be described.

  When the user of the button telephone handset 4A performs a hold operation during a call (step S6), a hold sound is transmitted to the caller via the mobile phone 5 (step S11), and then the button telephone handset 4B By performing the calling operation, an extension is transmitted to the main apparatus 2 (step S12). The main device 2 receives this extension call and makes an extension call to the key telephone handset 4B (step S13). When the user of the key telephone handset 4B performs a response operation, a call can be made with the user of the key telephone handset 4A (step S14).

  In this call, the user of the key telephone handset 4A talks about transferring the incoming call to the mobile phone 5 to the key telephone handset 4B, and then performs a transfer operation, whereby a transfer notification signal is sent from the key telephone handset 4A. It is transmitted to the main device 2 (procedure S15), and transmitted from the main device 2 to the key telephone handset 4B (procedure S16). Further, based on this transfer operation, the hold with the caller of the cellular phone 5 is released, and the button phone slave 4B → the main device 2 between the button phone slave 4B and the caller of the portable phone 5 is released. → Button telephone cordless handset 4A → Cellular phone 5 → A call state is established by connection through the source route (step S17). In this call state, the button telephone handset 4A performs necessary processing on the audio signal from the mobile phone 5 and sends it to the main device 2, and performs necessary processing on the audio signal from the main device 2 to the mobile phone 5. Send it out.

[4] When making a call operation from the button telephone handset 4A using the phone book data of the mobile phone 5 (see the sequence diagrams shown in FIGS. 7 and 8)
In order for the button telephone handset 4A to use the phone book data 37a stored in the storage unit 37 of the mobile phone 5, it is necessary to write the phone book data 37a into the storage unit 27. As a method for performing this writing, an SD memory card I / F is provided in both the button telephone handset 4A and the mobile phone 5, and the SD memory card in which the phone book data 37a is written by the mobile phone 5 is used as the button telephone handset. It may be configured to be attached to 4A and taken into the storage unit 27, or in the present embodiment, it is configured to download via the wireless transmission path 38 using the procedure shown in FIG. First, the download procedure will be described.

  The user of the button telephone handset 4A operates a predetermined function key of the key input unit 26 and selects “phone book download” displayed on the LCD of the display unit 25, so that the user can carry it from the button telephone handset 4A. A communication start command is transmitted to the telephone 5 (procedure S21). The mobile phone 5 receives a communication start command (step S22), transmits a communication enable response (Ack) when not in use, and transmits a communication disable response (Nack) when in use. Here, a communicable response is transmitted.

  The button telephone handset 4A receives a communicable response (procedure S23), and transmits a phone book data download command to the mobile phone 5 (procedure S24). If a communicable response cannot be received, a busy display is performed on the LCD of the display unit 25. When the mobile phone 5 accepts the download command, it reads the phone book data 37a from the storage unit 37 and transmits it to the button telephone handset 4A (step S25).

  The button telephone handset 4A receives the telephone book data (procedure S26), and stores the telephone book data 37a in the storage unit 27 (procedure S27). Then, a download end notification is issued and transmitted to the mobile phone 5 (step S28). When the mobile phone 5 receives the download end notification (step S29), the communication for downloading the phone book data 37a ends.

  Next, an operation in the case where a call operation is performed using the telephone directory data in the button telephone handset 4A will be described with reference to the sequence diagram of FIG.

  When the user of the button telephone cordless handset 4A operates a predetermined function key of the key input unit 26 and selects "Call from phone book" displayed on the LCD of the display unit 25 (step S31), the phone book is displayed on the LCD. Is displayed. When the user selects a desired telephone number (step S32) and presses the call button, a communication start command is issued from the key telephone handset 4A to the mobile phone 5 (step S33). The mobile phone 5 receives the communication start command (step S34), transmits a communication enable response (ACK) when not in use, and transmits a communication disable response (NACK) when in use. Here, a communicable response is transmitted.

  The button telephone handset 4A accepts the communicable response (procedure S35) and transmits the telephone number data to the mobile phone 5 (procedure S36). The cellular phone 5 receives the telephone number data (step S37), and transmits the telephone number data to the other party via the public telephone line. When there is a response from the other party (step S38), a communication path is formed between the other party and the button telephone handset 4A, so that the telephone call can be started by the button telephone handset 4A (step S39). . Here, it is preferable that the button telephone cordless handset 4 </ b> A can be configured in advance to determine whether or not to notify the caller number when the mobile phone 5 makes a call.

  In the above embodiment, only the button telephone handset 4A is configured to be able to communicate with the mobile phone 5 via the wireless transmission path 38. However, one or more other button phone handsets are also connected to the mobile phone 5. You may comprise so that communication is possible via the wireless transmission path 38. FIG. Further, the configuration may be such that the communication operation is made possible or impossible depending on the setting in the individual key telephone handset. Further, a plurality of mobile phones may be registered for one button telephone handset.

It is a figure which shows the structure of the button telephone system of embodiment of this invention. It is a block diagram which shows the structural example of the button telephone subunit | mobile_unit of embodiment of this invention. It is a block diagram which shows the structural example of the mobile telephone of embodiment of this invention. It is a sequence diagram which shows operation | movement in the case of answering the incoming call with respect to a mobile telephone with a button telephone cordless handset in the button telephone system of embodiment of this invention. FIG. 5 is a sequence diagram showing an operation when the key telephone handset receives a call from the main unit during a call with the caller of the public telephone line via the mobile phone in the key telephone system of the embodiment of the present invention. FIG. 7 is a sequence diagram showing an operation when a button telephone handset receives an incoming call to a mobile phone and then transfers it to another button telephone handset in the button telephone system of the embodiment of the present invention. It is a sequence diagram which shows operation | movement in the case of downloading the telephone directory data of a mobile telephone to a button telephone cordless handset. It is a sequence diagram which shows operation | movement in the case of performing transmission operation from a button telephone subunit | mobile_unit using the telephone directory data of a mobile telephone.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Button telephone system, 2 ... Main apparatus, 3 ... Extension transmission line, 4A, 4B, 4N ... Button telephone cordless handset, 5 ... Mobile phone, 21 ... Handset control , 22 ... Wireless I / F part, 26 ... Key input part, 32 ... Local wireless I / F part, Public wireless I / F part, 37a ... Phonebook data, 38 ..Wireless transmission path

Claims (3)

In a key telephone system comprising a main device and a plurality of button telephone slave units accommodated in the extension of the main device, and capable of answering an incoming call to a mobile phone with the button telephone slave unit,
The button telephone handset includes means for managing connection with the mobile phone, and means for responding to an inquiry from the main device, the responding means being configured so that the button telephone handset is connected to the mobile phone. A button telephone system characterized by responding in use when connected to the phone. The button telephone system according to claim 1,
A button telephone system characterized in that the connected state is during a call or on hold. The button telephone system according to claim 1,
The button telephone handset transmits an audio signal from the mobile phone to the main device based on an operation of transferring a response to an incoming call to the mobile phone to another button phone handset. A button telephone system, wherein an audio signal is transmitted to the mobile phone.

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