JPH0584115B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a button in a button telephone device that allows easy setting of the functions of a plurality of function keys of each button telephone used in the button telephone device. Concerning a method for allocating functions to telephones.

(Prior Art) This type of button telephone device is composed of a main device that performs various controls such as call route control, and a plurality of button telephones connected to the main device. It was unified into the same thing. This was done in order to simplify the control of the button telephone device by unifying the functions of each function key of the all-button telephone device in advance. However, if all the key telephones have the same function keys and the same arrangement of function keys, when adding a function, the function keys of the key telephones must also be added, which is inconvenient.

(Problem to be Solved by the Invention) Therefore, most of the function keys of each button telephone are replaced with the office line key (key for capturing the central office line) or the extension key (key for capturing the extension line) that is the minimum necessary for the operation of the button telephone device. ), and the functions of the remaining function keys (for example, speed dial function, amplification function, etc.) are made different for each button telephone set. However, in such a button telephone device, a function must be assigned to each function key of each button telephone, and the setting operation is troublesome and takes time. It was hot. As the number of function keys to be set increases, the above-mentioned inconvenience becomes more prominent.

Recently, button telephone devices have been proposed that use two types of button telephones with different numbers of function keys, for example, a button telephone with 20 function keys and a button telephone with 10 function keys. In such a button telephone device, for example,
Frequently used pushbutton telephones had many function keys, had more office line keys than other pushbutton telephones, and had special functions assigned to them.

Therefore, a desired function can be assigned to each button telephone, which is convenient for use, and an inexpensive button telephone with few function keys or an existing button telephone can be used, so the button telephone device can be made inexpensive. There was an advantage. however,
A function must be assigned to each function key of each button telephone, and the setting operation is very troublesome and takes time. In order to eliminate this inconvenience, for example, the five function keys of button telephones with different numbers of function keys are unified in advance as the minimum office line keys necessary for operation, and the remaining function keys of each button telephone are assigned individual functions. A method has been proposed to allocate However, even with this method, it is troublesome to operate the function settings for each function key of a button telephone with many function keys that have not been set in advance, and there is an undeniable inconvenience that the setting takes time. . In addition, since the central office line corresponding to a function key that has been unified in advance as a central office line key can be captured by all button telephones, the frequency of use of that central telephone line will be different from that of other function keys that are not uniformly set. The frequency of use of the office line corresponding to the office line key (office line key) is significantly higher than that of the office line, resulting in an inconvenience that the overall efficiency of use of the office line is reduced. This inconvenience becomes more noticeable when a large number of button telephones with few function keys are used. Therefore, in a button telephone device using several types of button telephones, if many button telephones having many function keys are used, the setting operation becomes troublesome and takes time. If a large number of key telephones were used, there was a problem in that the overall efficiency of use of central office lines decreased.

Furthermore, if a plurality of button telephones each having a different number of function key groups are connected to the main device of the button telephone, and it is necessary to register more types of pattern data corresponding to the function key groups, this pattern Since there is a limit to the storage capacity of the means for registering data, it has become necessary to appropriately utilize the registered pattern data.

[Structure of the invention]

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned circumstances, and is an upper station line in which functions can be easily assigned to each function key of each button telephone equipped with a different number of function keys in a button telephone device. Moreover, the first function key group and the second function key group, which have different numbers of function keys, can share the predetermined function key layout pattern data. Since it is not necessary to provide array pattern data for each function key group, more types of pattern data can be registered in the storage means, and the limited storage capacity of the storage means can be appropriately utilized. The purpose is to provide a function allocation method.

Therefore, the present invention stores a plurality of types of function key layout pattern data corresponding to a different number of function keys in a storage means in the main device, and provides functions for each button telephone that are different from the number of function keys of the button telephone. A control means is provided for allocating any one of the stored function key arrangement pattern data corresponding to the number of keys.

(Function) According to the present invention, when an assignment setting input of function key arrangement pattern data corresponding to a number of function keys different from the number of function keys of a button telephone is made based on input data from a setting device, the control means At least part of the setting request function key arrangement pattern data corresponding to the function keys of the telephone is assigned as valid.

(Example) The present invention will be described below with reference to the drawings.
FIG. 1 is a schematic diagram of a key telephone device to which an embodiment of the present invention is applied. In the figure, a plurality of key telephones 1a to 1n are connected to a main device 100, and a plurality of office lines 30a to 30m extend from an exchange (not shown).

This main device 100 includes a cross point 60, a control circuit 50, and a telephone interface circuit 10a.
~10n and office line interface circuits 20a~20
It is composed of m. Telephone interface circuits 10a to 10n are provided between the cross point 60 and the button telephones 1a to 1n, respectively, and central line interface circuits 20a to 20m are provided between the cross point 60 and the central office lines 30a to 30m. Each is provided. Furthermore, cross point 6
0, telephone interface circuits 10a to 10n,
The office line interface circuits 20a to 20m are bus 4.
0 and is connected to a control circuit 50 and controlled by this control circuit 50.

The control circuit 50 includes a main control circuit 51, a first memory (RAM) 52, a second memory (ROM) 53, and a first
It is composed of a switch SW ₁ and a second switch SW ₂ . The main control circuit 51 has a processor function and is connected to the first and second switches SW ₁ and SW _{2 .}
It detects the state of SW ₂ and controls each component of main device 100 using programs stored in first and second memories 52 and 53 connected via internal bus 55. The first memory 52 stores at least operational data referred to by the main control circuit 51, and the second memory 53 stores reference operational data corresponding to this operational data, a plurality of function key arrangement pattern data, and the main control circuit 51. In addition to programs for functioning as a processor, data not required for direct operation is stored in advance.
This pre-stored standard operation data is standard specification operation data, and if the key telephone device is operated based on this standard operation data, the key telephone device will be able to satisfy the majority of users. Further, the function key arrangement pattern data is data for assigning functions to each function key of each button telephone used in this button telephone device, and the functions of each button telephone are set based on this data.

FIG. 2 is a diagram showing a specific circuit configuration of the button telephone device shown in FIG. 1. Main device 100
consists of a plurality of station units 15a-15n corresponding to each of the key telephones 1a-1n, central office line units 25a-25m corresponding to each office line 30a-30m, a torsion unit 70, and a common control unit 80. has been done. The station units 15a to 15n each have a button telephone 1a.
1n to the central office lines 30a to 30m, other key telephones 1a to 1n, or other devices. These station units 15a to 15n
have telephone transformers 151a to 151n, data transformers 152a to 152n, crosspoint switches 60a to 60n, and data interface circuits 153a to 153n, respectively, and receive input from key telephones 1a to 1n via telephone lines 4a to 4n. The received call signal is sent to the call transformer 151.
Cross point switch 6 via a to 151n
0a to 60n, and key telephone 1a
The data signals inputted from ~1n via data lines 5a~5n are transferred to data transformers 152a~152a~1n.
152n and data interface circuit 153a
~153n to the common control unit 80. Here, the telephone transformers 151a to 15 of the station units 15a to 15n
1n, data transformers 152a to 152n, and data interface circuits 153a to 153n correspond to telephone interface circuits 10a to 10n shown in FIG. 1, and crosspoint switches 60a to 60n are shown in FIG. This corresponds to a part of the cross points 60.

Central office line unit 25a-2
5m are call transformers 251a to 251m, respectively.
The dial signal transmitting circuits 252a to 252m are equipped with dial signal transmitting circuits 252a to 252m and incoming call detection circuits 253a to 253m, and the dial signal transmitting circuits 252a to 252m connect to the cross point switches 60 of the station units 15a to 15n via telephone transformers 251a to 251m.
Connected to a to 60n. Incoming call detection circuit 25
3a to 253n are connected to the corresponding office lines 30a to 30m, and are configured to detect incoming calls from the office lines 30a to 30m. Here, the central office line units 25a to 25m are the central office line interface circuits 20a to 20m shown in FIG.
It corresponds to 0m.

Although the corresponding components are not shown in FIG. 1, the tone oscillation unit 70 includes an oscillator 71 that generates a ring tone, an extension cross-point switch 72, and an extension amplifier 73.
It is mainly responsible for generating ringtones and controlling extension connections. Further, the extension cross point switch 72 of the tone oscillation unit 70 is connected to a speaker 91 for in-house broadcasting and a radio 92 for generating music on hold. Furthermore, this tone oscillation unit 7
0 is connected to a power supply circuit 93 for generating voltage signals of 24V, 12V, and 5V for driving each part.

Common control unit 80 corresponds to control circuit 50 shown in FIG. This common control unit 80 is configured using a so-called microcomputer, and includes a central processing unit (CPU) 81, a read-only memory (ROM) 82, a random access memory (RAM) 83, and an input/output interface circuit (I/O). 84, and an internal bus 85 that connects these devices. Further, this common control unit 80 is connected via an internal bus 85 to the cross point switches 60a to 60n of the station units 15a to 15n, the dial signal generation circuits 252a to 252m of the central office line units 25a to 25m, and the incoming call detection circuit 25.
3a to 253m are connected to the extension cross point 72 of the tone oscillation unit 70, and control the operation of each unit. In the common control unit 80, a part of the random access memory 83 corresponds to the first memory shown in FIG. 1, and a part of the read-only memory 82 corresponds to the second memory shown in FIG. There is.

The button telephone device configured as described above is operated according to the operation flowchart shown in FIG. Next, the operation of such a button telephone device will be explained with reference to FIGS. 1 and 3.

In FIG. 1, as mentioned above, the second memory (ROM) 15 stores a program for executing the operations shown in the operation flowchart of FIG. 3, and the main control circuit 13 processes according to this program. perform an action.

First, by "power+on", the button telephone device is operated according to the operation flowchart shown in FIG. That is, an "initialization" step is performed, and the main control circuit 51 performs a predetermined initialization operation. The initialization performed here includes resetting various registers, etc. within the main control circuit 51. When this initialization is completed, the main control circuit ₅₁
In the step of "taking in", the switch state (open, open/closed state) of the first switch _SW1 , which specifies either the call processing mode or the operational data setting mode, is detected.Then, the main control circuit 51 determines whether to "switch the mode". In this step, it is determined whether a mode different from the previous one has been specified. If a mode change has been made, the main control circuit 51 performs an "initialization" step. As a result of this switching, the main control circuit 51 resets the contents of the registers and flags that have been used up until now, disconnects the line of each button telephone, and turns on/off the display (light emitting diode) of each button telephone. This is done to prepare for a new mode by turning on the light, etc.

If the "initialization" step is completed or the decision step is NO at the "mode switching" determination step, a "first mode (call processing mode)" determination step is performed. That is, the main control circuit 13 determines whether the first step SW ₁ is in an on (closed) state or an off (open) state. For example, if it is determined that the first switch SW ₁ is in an off state, the first step SW 1 Normal operation mode (call processing mode)
If it is determined that the first switch SW ₁ is in the on state, the second mode, which is the operational data setting mode, is entered.

Assuming that the first switch _SW1 is now in the OFF state and a branch is made to the call processing mode, the main control circuit 51 performs the step of "taking in key input". That is, the main control circuit 51 receives information such as key inputs, on-hook, and off-hook operations from the key telephones 1a to 1n. Next, the main control circuit 51
determines whether or not the above-mentioned information has been input using the "Is there input?" step. Therefore,
When branching to YES (input present), main control circuit 51
performs a predetermined process based on the information input in the "Call Processing" step, and then performs the process again based on the operation flowchart from the "SW ₁ Retrieval" step. Also, when a branch is made to NO (no input) in the above-mentioned "Is there input?" step, the process based on the operation flowchart is performed again from the "SW ₁ capture" step.

Next, the first switch SW ₁ is in the on state,
A case where a branch is made to NO (second mode) at the "first mode?" step and the second mode (operational data setting mode) is entered will be explained.
In the second mode, the main control circuit 51 switches “SW ₂
In the “Import” step, the second step SW ₂
Detects step status. Then, the main control circuit 51 executes the "SW ₂ ON" step. At this time, if the second switch _SW2 is in the on (closed) state, the step from "second memory to first memory" is executed. That is, the main control circuit 51 reads the standard operational data stored in the second memory 53 in advance and writes it into the first memory 52 as operational data to be actually referred to. This should make the key telephone device a system that meets the needs of the majority of users. Further, after this, by partially changing the operational data stored in the first memory 52 or setting new operational data, it is possible to easily provide a system that meets the requirements of a specific user. Now, if a branch is made to NO in the above-mentioned "SW ₂ ON" determination step, the contents of the first memory 52 are retained as they are.

Then, the main control circuit 51 executes an "input capture" step of detecting an input from a specific key telephone, for example, the key telephone 1a. After that, a step to determine whether there is an input is performed, and YES
When branching to (with input), the "setting" step is executed based on the input data, and the settings of the operational data are changed. In addition, if the setting change etc. of the operational data is completed or if a branch is made to NO at the step of determining whether there is an input,
The process returns to the "SW ₁ import" step and the processing according to the operation flowchart of FIG. 3 is performed again.

In this way, the button telephone device has the first memory 5
Processing operations are performed according to the operational data stored in 2.

By the way, the function assignment to each function key of each button telephone set 1a to 1n is performed in the above-mentioned second mode.

The function assignment will be explained below. Here, the button telephones 1a to 1n are shown in FIGS. 4 and 5.
As shown in the figure, there are two types of button telephones with different key configurations. In FIG. 4, the keys of this button telephone are number keys from "0" to "9";
A first key group 200 consisting of a "*" key and a "#" key, "SPKR", "MUTE", "CONF",
and a second key group 800 consisting of four preset function keys with “HOLD” displayed on the display unit 700, and a third key group 300 consisting of ten function keys to which function assignment is performed. It consists of All function keys of the third key group 300 are provided with light emitting diodes LD ₁ at corresponding positions.
A display unit 500 is provided to display function names. Here, each key of the first key group 200 is
Since the keys are similar to those used in ordinary key telephones, their explanation will be omitted. The function of each key in the second key group 800 will be briefly explained as follows.

"SPKR" key...key for selecting whether or not to perform a loudspeaker call "MUTE" key...key for selecting whether to prohibit microphone operation during a loudspeaker call "CONF" key...specific A key for selecting whether or not to release confidentiality between telephones "HOLD" key...A key for temporarily putting the central office line on hold.Each key in the third key group 300 is, for example, the following function key. will be assigned.

"CO1" key ~ "CO14" key... central line 30a ~
Key to capture the 30m line (station line key) "INT1" key, "INT2" key...Key to capture the extension line (extension key) "DND" key...key to prohibit extension calls "PLASH" key...Key to disconnect the line for a predetermined short time "AD1" key to "AD8" key...Keys to perform speed dial operations (speed dial key) Also, the buttons shown in Figure 5 The phone key is
The first key group 200 and the second key group 80 described above
0, a third key group 300, and a fourth key group 400 consisting of ten function keys. That is, the button telephone shown in FIG. 5 has 10 function keys compared to the button telephone shown in FIG.
There are many. Similarly to the third key group 300, each key of the fourth key group 400 is assigned one of the aforementioned function keys.

Next, the function assignment of each key of the third key group 300 and the fourth key group 400 will be specifically explained. Such function assignment is performed in the second mode (operational data setting mode) shown in FIG. 3, and its detailed operation is shown in FIG. 6.
When the first switch _SW1 is turned on and enters the second mode, the main control circuit 51 detects the switch state of the second switch _SW2 in the " _SW2 capture" step. Then, the main control circuit 51 executes the step "SW ₂ on", and if it is on, executes the step "second memory → first memory",
In the off state, the contents of the first memory 52 are held as they are. Thereafter, the main control circuit 51 takes in input. Then, the setter operates the first key group 200 of the specific key telephone to input data. Here, the specific key telephone does not mean a special key telephone, but a key telephone that allows input to the main control circuit 51 when in the second mode, and the number of telephones is not limited. Furthermore, when an input is made from a specific key telephone, the main control circuit 51 sends back a busy tone, for example, to these key telephones in order to prohibit the use of all other key telephones.

Here we will select a specific button phone as Button Phone 1.
Assume that the button telephone 1a has 20 function keys (a third key group 300 and a fourth key group 400) as shown in FIG. Each of the function keys of the third key group 300 and the fourth key group 400 of the button telephone 1a is provided with function key arrangement pattern data (hereinafter referred to as arrangement pattern data) as shown in FIGS. 8 and 9, respectively. ) is assigned. Figures 8a to 8d show the arrangement pattern data for a button telephone with 10 function keys.
FIGS. 9a to 9c are diagrams conceptually showing arrangement pattern data for a button telephone having 20 function keys so that each function key corresponds to the other. Further, these array pattern data are stored in advance in the second memory 53.
is registered in.

First, the setter specifies an item number by operating the first key group 200 of the key telephone 1a, which is a specific key telephone. If the item number of the function assignment is "04", the "0" key and the "4" key of the first key group 200 are pressed successively. The input data based on this operation is
to telephone interface rotation 10a and bus 4
0 to the main control circuit 51. As a result, the main control circuit 51 starts the function assignment operation. Next, the setter inputs the number of the key telephone to which the function is to be assigned by operating the first key group 200 of the specific key telephone 1a. For example, if settings are to be made for the key telephone 1n, the configurator inputs the number "19" for the key telephone 1n as described above. As a result, the main control circuit 51 allows function assignment to the button telephone 1n and waits for the next input. And the third key group 3
00, when any one of the function keys in the fourth key group 400 is selected and pressed, the main control circuit 51 lights up the light emitting diodes LD1 and LD2 corresponding to the function key based on this input data, and
The input data is stored in its own register as array pattern selection data. Therefore, the configurator should:
By lighting up these light emitting diodes LD1 and LD2,
You can check which array pattern data you have selected. After that, when the "HOLD" key (here, the "HOLD" key is the setting key) of the second key group 800 is pressed, this input data is written to the telephone interface circuit 1 as write command data.
0a, and is taken into the main control circuit 51 via the bus 40. Based on this input data, the main control circuit 51 writes the array pattern selection data stored in the register into the memory area of the first memory 52 associated with the button telephone 1n. Therefore, the main control circuit 51 completes the function assignment to the button telephone 1n, and the light emitting diodes LD1, LD are turned on.
After 2 is turned off, it returns to the initial state. This series of operations completes the assignment of functions to each function key of the button telephone 1n. Thereafter, functions are assigned to other key telephones in the same way.

At this time, the main control circuit 51 controls so that two or more light emitting diodes LD1 and LD2 do not light up at the same time during the function assignment operation. This is because the arrangement pattern data assigned to each button telephone is only one arrangement pattern data.

Although the above explanation is about function assignment for each button telephone, the same function assignment can be made to a plurality of key telephones at the same time.
That is, inputting a number for a button telephone is not limited to inputting only one number, so the numbers for multiple button telephones are input in sequence, and the same arrangement pattern data is assigned to these multiple button telephones through a series of input operations. You can also do that. Also, when inputting the telephone number, it is also possible to enter a special number such as "#1" that specifies all-button telephones, and to assign the same arrangement pattern data to all-button telephones through the series of input operations described above. can. If such function assignment is performed, common arrangement pattern data can be quickly assigned to many button telephones, which is effective. Furthermore, if the number of function keys of the button telephone to which the arrangement pattern data is assigned differs from the number of function keys based on this arrangement pattern data, this arrangement pattern data will not be invalidated and the function for the predetermined function key will be disabled. Assigned. In other words, if the actual number of function keys on the button telephone is greater than the number of function keys based on the arrangement pattern data, functions will be assigned to the function keys excluding some function keys, and the keys that are not assigned will not operate. I've learned not to. Conversely, if the number of keys is small, functions will be assigned to all function keys based on a portion of the array pattern data.

Here, when the arrangement pattern data shown in FIG. 8a is assigned to the button telephone shown in FIG. 4 through the above-mentioned function assignment, this button telephone will display each display section 500 on the display section 500 as shown in FIG. Displays the function name of the function key. Furthermore, when the arrangement pattern data shown in FIG. 9b is assigned to the button telephone shown in FIG. is displayed. To display such a function name, prepare multiple stickers corresponding to each array pattern data in advance, with the function name written on the front side and adhesive applied on the back side, and display them according to the selection of the array pattern data. This can be done by pasting a sticker to the display section 500, 600 of the button telephone, or by providing a card insertion section in the display section 500, 600 and inserting a card with the function name written in advance into the card insertion section. This is done by Therefore, the user can easily determine the function of each function key by displaying the function name.

By the way, a button telephone 1 as shown in FIGS. 4 and 5 in which functions are assigned in this way
The operation of the key telephone device equipped with terminals a to 1n in the above-mentioned call processing mode will be specifically explained with reference to FIGS. 1 and 7.

First, the operation when receiving a call from a local office line will be explained. For example, if an incoming call is received from the office line 30a, the main control circuit 51 detects the incoming call via the office line interface circuit 20a and the bus 40. Then, first, the main control circuit 51 registers each of the button telephones 1a to 1n in the second memory 53 based on the arrangement pattern selection data stored in the memory area related to each of the button telephones 1a to 1n in the first memory 52. Determine which array pattern data is assigned. Then, the main control circuit 51 controls the button telephones 1a to 1 based on the arrangement pattern data.
It is determined whether there is a function key (“CO1” key) corresponding to the central office line 30a in n, and if there is, one of the light emitting diodes LD1 and LD2 corresponding to the “CO1” key is selected.
At the same time, the operation data stored in the first memory 52 is referred to and an incoming call is made to the key telephones 1a to 1n having the "CO1" key in accordance with the operation data by blinking one of the keys. Here, it is assumed that the button telephone 1a has a "CO1" key, and the "CO1" key of this button telephone 1a is
Assuming that a key is pressed, data obtained thereby reaches the main control circuit 51 from the button telephone 1a via the telephone interface circuit 10a and the bus 40. Therefore, the main control circuit 51
0a and the office line interface circuit 20a, connect the key telephone 1a and the telephone interface circuit 10a, and further connect the cross point 60
is operated to connect the telephone interface circuit 10a and the office line interface circuit 20a.
This completes the connection between the key telephone 1a and the office line 30a, and a communication path is formed. In this way, the button telephones 1a to 1n having the "CO1" key
A response can be made by either. Furthermore, at this time,
The main control circuit 51 sends a control signal via the telephone interface circuits 10a to 10n to light up the light emitting diodes LD1 and LD2 corresponding to the "CO1" key of the button telephones 1a to 1n having the "CO1" key. . Therefore, this lighting display can notify the user that a call is being made via the central office line 30a.

Second, the operation when making a call to a central office line will be explained. For example, assume that the button telephone 1n has a "CO14" key, and from this button telephone 1n to the central office line 3.
The case where a call is made to 0m will be explained. First, when the "CO14" key of the button telephone 1n is pressed and the handle set is lifted, these data are transferred to the telephone interface circuit 10n and the bus 4.
0 to the main control circuit 51. Then, the main control circuit 51 refers to the operation data stored in the first memory 52 and determines whether the button telephone 1n is prohibited from making calls to the central office line 30m or whether access to the central office line 30m is prohibited. Check. If no such prohibition is in place,
The main control circuit 51 is a station line interface circuit 20m
and the central office line 30m, and connect the telephone interface circuit 10n and the button telephone 1n,
Furthermore, the cross point 60 is operated to connect the telephone interface circuit 10n and the office line interface circuit 20m.

This completes the connection between the button telephone 1n and the central office line 30m, making it possible to send a dial signal. The dialing signal is transmitted by direct dialing (manual dialing) using the first key group 200 shown in FIGS. 4 and 5 or by abbreviated dialing using the "AD1" and "AD8" keys. Calls made by the latter operation are assigned to "AD1" by function assignment.
The telephone number data stored in advance in the memory area of the first memory 52 associated with the button telephones 1a to 1n, which now have at least one of the keys "AD1" to "AD8" This is performed by the main control circuit 51 reading data based on the press of any one of the buttons. Further, such registration of telephone number data is performed in each of the button telephones 1a to 1n. Specifically, after lifting the handset and placing it in the off-hook state, press "*".
Based on the data obtained by pressing the keys, the main control circuit 51 determines that telephone number data has been input, and by pressing any of the "AD1" to "AD8" keys, the data is stored in the memory area corresponding to each key. Thereafter, the input number data is stored, and the input of the number data is completed based on the pressing of the "#" key.

Incidentally, as in the case described above, when making a call to the central office line, the main control circuit 51 lights up the light emitting diodes LD1 and LD2 corresponding to the "CO1" key to "CO14" key corresponding to the central office line 30a to 30m to be used. Displays that it is inside.

Third, the operation at the end of a call will be explained. For example, when a telephone call using the central office line 30m ends in a button telephone 1n and the handset is put down to enter an on-hook state, this on-hook data is taken into the main control circuit 51 via the telephone interface circuit 10n and the bus 40. It can be done. Based on this data, the main control circuit 51 first controls the central office line interface circuit 20m to open the central office line 30m, disconnects the cross point 60, and then connects the key telephones 1a to 1n having the "CO14" key. Light emitting diode that sends control signals and corresponds to the "CO14" key
Control is performed to turn off LD1 and LD2.

Normal call processing operations are performed using the key telephones 1a to 1n to which functions have been assigned in this manner.

〔Effect of the invention〕

As explained above, according to the present invention, by registering a plurality of function key arrangement pattern data in the memory in the main device in advance, even if the number of function keys of each button telephone is different, the function keys can be desired functions can be easily assigned in a short time. Therefore, various requests from users can be easily met. Furthermore, it becomes easy to allocate functions to the function keys of each button telephone so as to improve the utilization efficiency of the plurality of office lines used by the button telephone. Furthermore, since it is not necessary to provide predetermined function key layout pattern data for each function key group, more types of pattern data can be registered in the storage means, and the limited storage capacity of the storage means can be appropriately utilized. be able to.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a button telephone device to which an embodiment of the present invention is applied, FIG. 2 is a circuit diagram of the button telephone device shown in FIG. 1, and FIG. 3 is a circuit diagram of the button telephone device shown in FIG. Flowchart for explaining the operation of the button telephone device, FIGS. 4 and 5 are diagrams showing the key configuration of the button telephone, and FIGS. 6 and 7 are main parts of the flowchart shown in FIG. 3. Flowcharts for explanation, FIGS. 8 and 9 are diagrams conceptually showing the function key arrangement pattern data registered in the second memory 53 shown in FIG. 1, and FIGS. 10 and 11 are 1 is a diagram showing a button telephone to which functions are assigned according to an embodiment of the present invention; FIG. 1a~1n...Key telephone, 30a~30m
...Station line, 50...Control circuit, 51...Main control circuit, 52...First memory, 53...Second memory,
SW ₁ ... 1st switch, SW ₂ ... 2nd switch,
100...Main device, 200...First key group, 30
0...3rd key group, 400...4th key group, 50
0,600...Display section, LD1, LD2...Light emitting diode.

Claims (1)

[Scope of Claims] 1. A first button telephone equipped with a first function key group having a plurality of function keys, and a second function key group having a different number of function keys than the first function key group. In a button telephone device comprising a second button telephone and a main device to which a plurality of button telephones and a central office line are connected, the main device has a plurality of keys corresponding to the first function key group and the second function key group, respectively. a storage means in which function key layout pattern data is registered in advance; and one of the function key layout pattern data corresponding to the second function key group on the first button telephone set based on input data from a connected setting device. When a request for assignment to a function key of the first function key group is received, at least part of the function key arrangement pattern data related to the request is assigned as valid, and the first button telephone is assigned based on the assigned data. 1. A method for assigning functions to a button telephone in a button telephone device, comprising: a control means for setting functions for each function key.