JP3737273B2 - Button telephone apparatus and incoming call reception method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to control of a call when there is a call from a third party during a call.
[0002]
[Prior art]
Among the conventional telephone exchange apparatuses, a key telephone apparatus can assign a virtual extension number to an extension key telephone. Here, the virtual extension number is a number assigned to an extension having no physical accommodation position and telephone unit. For example, extension numbers such as 500 and 501 assigned to other extension terminals can be assigned as virtual extension numbers to a key telephone to which an extension number of 200 is assigned. Such a button telephone can normally make a call using the original extension number of 200, but can also make a call using the virtual extension number of 500 or 501.
[0003]
Next, extension number calling processing of a conventional key telephone apparatus will be described. When there is an incoming call on an extension, first, the incoming call analysis is performed based on the extension number, and the called party is searched. Next, it is determined whether or not the extension number button telephone is busy, and if not, a ringing tone is transmitted to the caller and the process is terminated. On the other hand, if the call is in progress, the busy tone is returned to the caller and the process is terminated.
Therefore, when a call is made using the extension number of the key telephone, which is 200 in the above example, even if there is an incoming call from another place, the busy tone is returned to the caller. Thus, the caller will know that he is busy and hang up.
[0004]
On the other hand, if the key telephone receives an incoming call from another location during a call using the virtual extension number 500, it is determined that the call is not busy because the extension number 200 is empty, and the main device A ringing tone is sent to the key telephone during a call with the extension number, and a ringing tone is generated from the key telephone. However, at this time, since this key telephone is busy using the number 500, it cannot respond to this ringing tone, and the ringing tone is left unattended and the call cannot be continued calmly. In addition, since the caller does not know that the called party is busy, there is a problem that the situation cannot be accurately grasped and wasteful waiting time is wasted.
[0005]
[Problems to be solved by the invention]
As mentioned above, when a call is received from another location during a call using a virtual extension number other than the extension number originally assigned to a button telephone, the extension number originally assigned is vacant. Therefore, a ringing tone is output from this key telephone, but since this call cannot be answered, there is a problem that the ringing tone is turned off and the call cannot be continued calmly. In addition, the caller can understand that it is difficult to answer the call, but since the called party does not know that he / she is busy, the situation cannot be accurately grasped, and a wasteful waiting time is wasted. .
[0006]
The present invention relates to a button telephone device capable of taking an appropriate measure for a caller side when an incoming call using an extension number is received from another place during a call using a virtual extension number, and an incoming call reception method thereof The purpose is to provide.
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, in a button telephone apparatus having a function capable of assigning a virtual extension number in addition to an extension number to a telephone, there is an incoming call during a call using the virtual extension number on the telephone. Setting means for setting back the busy tone to the caller in the event of a call, and when the telephone number is received during a call using the virtual extension number on the telephone, the setting contents of the setting means are If the setting is made so that the busy tone is returned to the calling side, a busy tone returning means for returning the busy tone to the calling side instead of sending a ringing tone to the telephone is provided. This is a button telephone device.
[0008]
With such a configuration, if the setting means is configured to return a busy tone to the calling side when there is an incoming call during the call using the virtual extension number on the key telephone, the busy tone return is performed. The means performs a control to return a busy tone to the caller instead of sending a ringing tone to the key phone when an incoming call is received using the virtual extension number on the key phone.
[0009]
According to a second invention described in the present application, in a button telephone apparatus having a function of assigning a virtual extension number in addition to an extension number to a telephone, there is an incoming call during a call using the virtual extension number on the telephone. If there is an incoming call to the extension number during a call using the virtual extension number on the telephone, check the setting contents of the setting means When the voice mail is set to be returned to the calling side, voice mail returning means for returning the voice mail to the calling side instead of sending a ring tone to the telephone is provided. It is a button telephone device.
[0010]
With this configuration, when there is an incoming call during a call using the virtual extension number on the key telephone, the voice mail return means stops sending the ringing tone to the key telephone, Return a voice mail to the caller that the phone is busy.
[0011]
According to a third aspect of the present invention, in a button telephone apparatus having a function of assigning a virtual extension number in addition to an extension number to a telephone, there is an incoming call during a call using the virtual extension number on the telephone. If there is an incoming call to the extension number during a call using the virtual extension number on the telephone, the setting means for setting the voice mail back to the calling side and recording the message on the calling side If the setting contents of the setting means are checked and voice mail is sent back to the calling side and the message on the calling side is recorded, the voice mail is sent instead of sending a ring tone to the telephone. And a message recording means for recording the message on the calling side.
[0012]
With this configuration, when there is an incoming call during a call using the virtual extension number on the key telephone, the message recording means stops sending the ringing tone to the key telephone, and makes a call instead. Record your message.
[0013]
According to a fourth aspect of the present invention, in the button telephone apparatus having a function of assigning a virtual extension number in addition to the extension number to the telephone, the extension number is used during a call using the virtual extension number on the telephone. The setting means for returning the busy tone to the caller when there is an incoming call, setting means for turning on / off for each caller, and receiving the call at the extension number during the call using the virtual extension number at the telephone If the setting of the setting means is checked and the setting for returning the busy tone to the calling side is ON, the busy tone is sent to the calling side instead of sending the ringing tone to the telephone. A button telephone device comprising a busy-sound return means for returning.
[0014]
With such a configuration, when the setting unit makes an incoming call during a call using the virtual extension number on the key telephone, if the setting is made so that the busy tone is returned to each calling side, the busy tone Only when there is an incoming call from the caller whose setting is to send back, a control is performed to return a busy tone to the caller instead of sending a ring tone to the key telephone.
[0015]
According to a fifth aspect of the present invention, in the button telephone apparatus having a function of assigning a virtual extension number in addition to the extension number to the telephone, the extension number is used during a call using the virtual extension number on the telephone. Setting means for performing a setting for returning a busy tone to the calling side when an incoming call is received, and setting the priority for each calling side, and the extension number during a call using the virtual extension number on the telephone When there is an incoming call, the setting contents of the setting means are checked, and only when the priority of the extension number on the calling side is lower than the priority on the calling side of the virtual extension number, a ring tone is sent to the telephone. Instead of this, a busy telephone return device for returning a busy tone to the caller is provided.
[0016]
With this configuration, when there is an incoming call during a call using the virtual extension number on the key telephone, the priority of the calling party is compared, and the priority of the calling party that has arrived later is received first. When the priority is lower than the caller's priority, control is performed to return a busy tone to the caller that has received the call.
A sixth invention described in the present application is a button telephone device characterized in that the setting means of the first to fifth inventions is an input means provided separately from the telephone.
[0017]
With such a configuration, settings for a plurality of key telephones can be performed collectively, or setting contents can be easily registered or changed.
A seventh invention described in the present application is a button telephone device characterized in that the setting means of the first to fifth inventions is a predetermined key provided on the telephone.
With such a configuration, setting is made to return a busy tone or voice mail by operating a predetermined key of the key telephone.
[0018]
An eighth invention described in the present application is an incoming call reception method for a button telephone apparatus having a function capable of assigning a virtual extension number in addition to an extension number to a telephone, wherein the destination telephone is using the extension number If the extension is in use, a busy tone is sent back to the caller, and it is determined whether the destination telephone is using the virtual extension, and the virtual extension is in use. If there is, the incoming call reception method of the key telephone device is characterized in that a busy tone or voice mail is returned to the caller.
By such a method, if the destination key telephone is in use, a busy tone or voice mail is returned to the caller.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a block diagram showing a first embodiment of a button telephone apparatus according to the telephone exchange apparatus of the present invention. Reference numeral 1 denotes an analog subscriber line 2, a key telephone (DKT) 3, and a main apparatus that performs call control for a single telephone (SLT) 4, 2 an analog subscriber line accommodated in the main apparatus 1, and 3 a main apparatus 1. The key telephone (DKT) 4 and 4 are single telephones (SLT) accommodated in the main apparatus 1.
[0020]
Here, the main apparatus 1 includes an office line unit 11 to which an analog subscriber line 2 is connected, an extension unit 12 to which a button telephone 3 is connected and controlled, and a standard telephone unit 13 to which a single telephone 4 is connected and controlled. And a control unit 14 for controlling the entire main apparatus 1, a control data highway 15 for transmitting control data between these units, and a PCM highway 16 for transmitting audio data. Further, the control unit 14 performs call control and various processes related thereto based on the analysis result of the one-chip microcomputer 141 and the one-chip microcomputer 141 that analyze the control data sent via the control data highway 15. 16-bit microcomputer 142 to be executed, ROM 143 storing programs to be executed by 16-bit microcomputer 142, RAM 144 for storing various data necessary for processing operations such as 16-bit microcomputer 142, station line unit 11 and extension unit 12, a time switch 146 for connecting the standard telephone unit 13 and the control unit 14 through the PCM highway 16, a tone circuit 147 for generating various tone signals, and a conference circuit 1 for conducting a conference using a telephone. It has 8.
[0021]
FIG. 2 is a plan view showing a detailed example of the key telephone 3 shown in FIG. 31c to 31h are flexible buttons to which extension numbers are assigned, 32 is a dial pad, 33 is a display such as an LCD for displaying various information, and 34 is a handset. Here, virtual extension numbers 504 to 500 are assigned to the flexible buttons 31c to 31g, and the extension number 200 of the button telephone is assigned to the flexible button 31h.
[0022]
Next, the operation of the present embodiment will be described. First, if a third party receives an incoming call to the number 200 when a call is being made with a virtual extension number on the key telephone 3, whether to return a busy tone to the calling side or send a ringing tone to the phone. It must be set in the main device 1 in advance. For this purpose, an extension number calling system function setting request is sent from the key telephone 3 to the one-chip microcomputer 141 via the extension unit 12 and the control data highway 15. As a result, the 16-bit microcomputer 142 knows that the extension number calling system function setting request is issued from the one-chip microcomputer 141, and enters the extension number calling system function setting mode. After that, the 16-bit microcomputer 142 sets the function of the calling method for the key telephone 3 in the RAM 144 according to the data inputted from the key telephone 3.
[0023]
FIG. 3 is a flowchart showing a procedure of processing at the time of the above-described function setting. The 16-bit microcomputer 142 first determines whether or not the function setting is the extension call method (step 301). If not, the process ends. On the other hand, if this is the case, it is determined whether the call method requested via the key telephone 3 is a busy tone return (BT) or a ringing tone return (RBT) (step 302). In this case, BT (Busy Tone) is set in the RAM 144 and the process is terminated (step 303). In the case of ringing tone transmission, an RBT (Ring back tone) is set in the RAM 144 and the process is terminated (step 304).
[0024]
As a result, when BT is set in the RAM 144, when a call is received from a third party using the extension number 200 when the key telephone 3 uses a virtual extension number, Control is performed to return a busy tone to the three parties. In addition, when RBT is set in the RAM 144, when the key telephone 3 receives a call using the number 200 from a third party during a call using the virtual extension number, a ringing sound is sent to the key telephone 3. Is sent out.
[0025]
FIG. 4 is a flowchart showing the operation of the control unit 14 when there is an incoming call. When there is an incoming call from the office line unit 11, extension unit 12, or standard telephone unit 13 via the control data highway 15, the one-chip microcomputer 141 analyzes this incoming call and notifies the 16-bit microcomputer 142. (Step 401). As a result, the 16-bit microcomputer 142 searches for the destination (step 402). In this example, the destination is the key telephone 3.
[0026]
Next, the 16-bit microcomputer 142 determines whether or not the extension number 200 of the destination key telephone 3 is busy (step 403). A busy tone is transmitted (step 408). If the call is not in progress, the 16-bit microcomputer 142 determines whether the incoming extension number is the extension number 200 of the key telephone 3 (step 404).
[0027]
Here, if the number is not the number 200, for example, the virtual extension number is 501 or the like, a ringing tone is transmitted to the calling side (step 407). If the extension number is 200, the 16-bit microcomputer 142 determines whether the key telephone 3 is busy (in use) using any virtual extension number (step 405).
[0028]
If the call is not in progress, the process jumps to step 407. If the call is in progress, the function setting data of the calling method in the RAM 144 is checked (step 406). As a result, when it is found that BT (return of busy sound) is set, the 16-bit microcomputer 142 passes the time switch circuit 146 and the PCM highway 16 from the tone circuit 147, and further, for example, the office line unit 16 , The busy tone is returned to the calling side on the analog subscriber line 2 side (step 408), and the process is terminated. On the other hand, when RBT (sending ringing tone) is set in the RAM 144, the 16-bit microcomputer 142 passes the tone circuit 147 via the time switch circuit 146 and the PCM highway 16 and further from the extension unit 12 to the key telephone 3. A ringing tone is transmitted (step 407), and the process is terminated.
[0029]
According to the present embodiment, if BT (return of busy tone) is set in the main device 1 for the key telephone 3, the key telephone 3 is in the middle of a call with a virtual extension number, and this key is When a call arrives at the extension number of the telephone, a busy tone can be sent back from the main unit 1 to the calling party, so that the caller immediately knows that the key telephone 3 is busy and hangs up the telephone. Appropriate operation can be performed. In addition, when the key telephone 3 is in a call with a virtual extension number, a ringing tone is not output from the key telephone 3, so that the user can make a quiet call.
[0030]
In this example, if RBT (transmission of ringing tone) is set in the main device 1, the conventional calling method can be used, so that the flexibility of the calling method of the key telephone 3 can be improved.
[0031]
(Second Embodiment)
FIG. 5 is a diagram for explaining a second embodiment of the key telephone apparatus of the present invention. The key telephone 3 of this example has the same configuration as that of the first embodiment shown in FIG. 1 except that the call mode change button 35 is provided. Borrow 1 and explain.
[0032]
Next, the operation of the present embodiment will be described with reference to the flowchart of FIG. When there is an incoming call from the office line unit 11, extension unit 12, or standard telephone unit 13 via the control data highway 15, the one-chip microcomputer 141 analyzes this incoming call and notifies the 16-bit microcomputer 142. (Step 601). As a result, the 16-bit microcomputer 142 searches for the destination in step 602 (step 602). In this example, the destination is the key telephone 3.
[0033]
Next, the 16-bit microcomputer 142 determines whether or not the extension number 200 of the destination key telephone 3 is busy (step 603). If the call is not in progress, the 16-bit microcomputer 142 determines whether the received extension number is the extension number 200 of the key telephone 3 (step 604). If the extension number is not 200 but is, for example, virtual 501 Jumps to step 607 and proceeds to step 605 if the extension number is 200.
[0034]
The 16-bit microcomputer 142 determines whether the key telephone 3 is busy (in use) using any of the virtual extension numbers (step 605). If not, the program jumps to step 607 and is busy. If it is, it is checked whether or not the change button 35 of the key telephone 3 is on (step 606). As a result, if it is found that the change button 35 is ON, the 16-bit microcomputer 142 transmits the analog circuit from the tone line 147 via the time switch circuit 146 and the PCM highway 16, and further from the analog line unit 16 to the analog subscriber line, for example. The busy tone is sent back to the transmitting side on the second side, and the process is terminated (step 608). On the other hand, if it is found that the change button 35 is not on but off, the 16-bit microcomputer 142 passes the tone circuit 147 via the time switch circuit 146 and the PCM highway 16 and further from the extension unit 12 to the key telephone 3. The ringing tone is transmitted and the process is terminated (step 607).
[0035]
According to the present embodiment, if the change button 35 of the key telephone 3 is set to ON in advance, the key telephone 3 is in a call with a virtual extension number, and an incoming call is received from another place to the telephone extension number. In this case, since the busy sound can be sent back from the main device 1 to the calling side, the caller can know that the key telephone 3 is busy and can perform an appropriate operation such as hanging up. There is an effect similar to that of the first embodiment shown in FIG.
[0036]
Note that the operation of the change button 35 of the calling method in this example is performed in advance. When an incoming call is received during a call with a virtual extension number and a ringing tone is generated, the change button 35 is turned on / off. However, it is assumed that the setting of the calling method does not change.
[0037]
(Third embodiment)
FIG. 7 is a diagram for explaining a third embodiment of the key telephone apparatus of the present invention. The key telephone 3 of the present example has the same configuration as that of the first embodiment shown in FIG. 1 except that a call mode switching button 36 is provided. Borrow 1 and explain.
[0038]
Next, the operation of the present embodiment will be described with reference to the flowchart of FIG. First, the one-chip microcomputer 141 performs an incoming call analysis and notifies the result to the 16-bit microcomputer 142 (step 801). As a result, the 16-bit microcomputer 142 searches for an incoming call destination based on the analysis result (step 802). In this example, the incoming call destination is the key telephone 3. Next, the 16-bit microcomputer 142 determines whether or not the key telephone 3 having the extension number 200 as the destination is busy (step 803), and if not, sends a ringing tone to the caller (step 804). ). On the other hand, if the call is in progress, a busy tone is returned to the caller (step 807).
[0039]
In step 804, the 16-bit microcomputer 142 terminates the processing if there is a change in state such as whether the calling party disconnects the line or the key telephone 3 goes off-hook while the ringing tone is being transmitted (step 805). If there is no change in state, the 16-bit microcomputer 142 determines whether or not the switching button 36 of the key telephone 3 has been pressed (step 806). If not, the process returns to step 804. If not, the process returns to step 807. Proceed, stop sending the ringing tone, and return the busy tone to the caller. Here, the 16-bit microcomputer 142 determines whether or not the line on the calling side is disconnected while returning the busy tone in step 807. If the line is not disconnected, the process returns to step 807. The process ends (step 808).
[0040]
According to the present embodiment, during a call using the virtual extension number of the key telephone 3, an incoming call is received from another place to the original extension number, and a ringing tone is generated from the telephone 3, which is noisy. Since the generation of the ringing tone can be stopped by depressing the switching button 36 and the busy tone can be returned to the calling side instead, the same effect as in the first embodiment can be obtained.
[0041]
When there is an incoming call during a call with the above virtual extension number, the call mode switching button determines whether the mode is a mode for sending a ringing tone to the key telephone 3 or a mode for returning a busy tone to the calling side. It may be displayed on the display 33 of the key telephone 3 in response to the pressing of 36. Alternatively, the mode setting state may be known by turning on or off a light emitting element such as an LED incorporated in the switching button 36.
[0042]
Further, as described above, when the switching button 36 is pressed during a call with a virtual extension number and the system is switched to a method of returning a busy tone to the calling side, this calling method is set in the RAM 144 of the main device 1 thereafter. Thereafter, when a call is received from another place during a call with the above-described virtual extension number, the setting may be automatically made so that a busy sound is always returned to the caller.
[0043]
Further, when a call is received from another place during a call with a virtual extension as described above, even if the switch button 36 is pressed, only pressing of the switch button 36 is set in the RAM 144. The ringing method does not change and the ringing tone continues to be generated. However, if the incoming call is received from another place during the next call with the virtual extension number, the setting of the RAM 144 is checked and the switch button 36 is not pressed. If set, control of returning a busy tone to the caller instead of sending a ringing tone may be performed.
[0044]
In this case, when the switching button 36 is pressed except when the ringing tone is generated during a call with a virtual extension number, the 16-bit microcomputer 142 detects this when the switching button 36 is pressed, and the switching button set in the RAM 144. The setting of pressing 36 is cleared, and then, when a call is received from another place during a call with a virtual extension number, control is returned to the apparatus to send a ringing tone to the key telephone 3.
[0045]
(Fourth embodiment)
FIG. 9 is a diagram for explaining a fourth embodiment of the key telephone apparatus of the present invention. In this example, a voice mail device 5 is connected instead of the single telephone 4. Further, since the key telephone 3 is provided with a call-type switching button telephone 36 in the same manner as described in the embodiment of FIG. 7, the following description will be given with reference to FIG.
[0046]
Next, the operation of the present embodiment will be described with reference to the flowchart of FIG. The operations of Steps 101 to 106 and Step 108 are the same as the operations of Steps 801 to 806 and Step 808 shown in FIG. The difference is the operation of step 107. That is, the 16-bit microcomputer 142 of the control unit 14 in FIG. 9 switches the caller side and the standard telephone unit 13 to a time switch when the incoming call is received from another place while the key telephone 3 is talking on the virtual extension number. The circuit 146 connects via the PCM highway 16 and sends activation data from the control data highway 15 to the standard telephone unit 13 to activate the voice mail apparatus 5 (step 107). As a result, the voice mail device 5 sends out a voice mail such as “This telephone is busy, please hang up and call again after a while” to the calling side.
[0047]
According to the present embodiment, during a call using the virtual extension number of the key telephone 3, an incoming call is received from another place to the original extension number, and a ringing tone is generated from the telephone 3, which is noisy. Can stop the generation of the ringing tone by depressing the switch button 36, and can instead return a voice mail notifying the caller that the call is in progress. Can be clearly communicated. Other effects are the same as those of the first embodiment.
[0048]
It should be noted that the configuration for stopping the generation of the ringing tone and returning the voice mail notifying the caller that the call is in progress is similarly configured in the first and second embodiments. Have the same effect.
[0049]
Furthermore, it may be configured not only to return the voice mail but also to record the caller's message like an answering machine. This configuration is convenient because it can accept messages.
[0050]
(Fifth embodiment)
This embodiment has the same configuration as the button telephone apparatus shown in FIGS. 1 and 2, and the method for setting the calling method in the main apparatus 1 is different. In the third embodiment, the call mode is switched by the call mode switch button 36 of the key telephone 3, but in this embodiment, the call mode is switched by dialing a specific number from the key telephone 3. I do.
[0051]
Next, the operation of the present embodiment will be described with reference to the flowchart of FIG. First, the one-chip microcomputer 141 performs incoming call analysis and notifies the result to the 16-bit microcomputer 142 (step 111). As a result, the 16-bit microcomputer 142 searches for the destination based on the analysis result (step 112). In this example, the destination is the key telephone 3, and in step 113, the destination key telephone 3 The caller number is displayed on the display 33 (step 113). Next, the 16-bit microcomputer 142 determines whether or not the key telephone 3 having the extension number 200 as the call destination is busy (step 114). ). On the other hand, if the call is in progress, a busy tone is returned to the caller (step 118).
[0052]
In step 115, the 16-bit microcomputer 142 terminates the process if there is a change in state such as whether the calling party disconnects the line or the key telephone 3 goes off-hook while the ringing tone is being transmitted (step 116). If there is no change in status, the 16-bit microcomputer 142 determines whether or not the specific number is dialed on the key telephone 3 (step 117). If not dialed, the process returns to step 115. If dialed, the process proceeds to step 118. , Stop sending the ringing tone and return the busy tone to the calling party. Here, the 16-bit microcomputer 142 determines whether or not the line on the caller side is disconnected while returning the busy tone in step 118, and returns to step 118 if not disconnected, and performs processing if disconnected. The process ends (step 119).
[0053]
According to the present embodiment, during a call using the virtual extension number of the key telephone 3, an incoming call is received from another place to the original extension number, and a ringing tone is generated from the telephone 3, which is noisy. By dialing a specific number, the generation of the ringing tone can be stopped, and the busy tone can be returned to the calling side instead. Thus, the same effect as in the first embodiment can be obtained.
[0054]
When there is an incoming call during a call with the above-described virtual extension number, whether the mode is a mode for sending a ringing tone to the key telephone 3 or a mode for returning a busy tone to the calling side. Depending on the situation, it may be displayed on the display 33 of the key telephone 3.
[0055]
In addition, as described above, when switching to a method of dialing a specific number during a call with a virtual extension number and returning a busy tone to the calling side, this calling method is set in the RAM 144 of the main device 1 thereafter. After that, when there is an incoming call from another place during a call with the above-described virtual extension number, it may be configured to automatically set to return a busy tone to the calling side.
[0056]
Further, when a call is received from another location during a call with a virtual extension number as described above, even if the specific number is dialed, only the dial of the specific number is set in the RAM 144. The ringing tone continues to be generated as it is, but if the incoming call is received from another place during the next call with the virtual extension number, the setting of the RAM 144 is checked and the dial with the specific number is set. If this is the case, control may be performed such that the busy tone is returned to the caller instead of sending the ringing tone.
[0057]
In this case, except when the ringing tone is generated during a call with a virtual extension number, when the dial of the specific number is pressed, this is detected and the 16-bit microcomputer 142 is set in the RAM 144. It is assumed that the dialing setting of the number is cleared, and then, when a call is received from another place during a call with a virtual extension number, the control is returned to the device for sending a ringing tone to the key telephone 3.
[0058]
(Sixth embodiment)
This embodiment has the same configuration as the button telephone apparatus shown in FIGS. 1 and 2, and the system for setting the calling system in the main apparatus 1 is different. In the above embodiment, the calling method of the key telephone 3 is set to BT or RBT regardless of who the caller is. In the present embodiment, in the first to fifth embodiments, the calling method can be set corresponding to the caller ID.
[0059]
FIG. 12 is a memory map set in the RAM 144. For example, the caller number A is set in the RBT, and the caller numbers B and C are set in the BT so that the call method is set in advance for the caller number. When the key telephone 3 receives an incoming call, this memory map is referred to, and only the incoming call from the caller number A sounds a ringing tone. The incoming call from the caller number B or C does not sound and the calling side Return a busy tone to
[0060]
According to the present embodiment, it is possible to accept only incoming calls from important business partners and the like, and it is possible to eliminate unnecessary incoming calls.
In the above embodiment, both the RBT and BT caller numbers are registered in the memory map of the RAM 144, but only one of the RBT or BT is registered, and the caller numbers that are not registered are registered. On the other hand, the other call setting may be used.
[0061]
(Seventh embodiment)
The present embodiment is a modification of the sixth embodiment, and can set the call method corresponding to the caller number. However, priority is given to the caller number registered in the RBT. It has the structure which gave.
[0062]
FIG. 13 is a memory map set in the RAM 144. For example, caller numbers A, B, and C are set to RBT, and priority 1, priority 2, and priority 3 are assigned, respectively. When the key telephone 3 receives an incoming call, this memory map is referred to, and only the incoming call from the caller numbers A, B and C is sounded, and the incoming call from the other caller numbers is not emitted. Return the busy tone to the calling party. Here, when there is an incoming call from the caller number C to the extension number during a call using the caller number B and the virtual extension number, the priority of the memory map is compared. Since the priority is high, a busy tone is returned to caller ID C. Further, when a call is received from the caller number A to the extension number during a call using the caller number B and the virtual extension number, the priority of the memory map is compared. Since the priority is high, a ringing tone is transmitted.
[0063]
According to the present embodiment, it is possible to select a caller who wants to receive a call and to take an appropriate action according to the priority of the caller who wants to receive a call.
[0064]
(Eighth embodiment)
This embodiment is a button telephone apparatus shown in FIG. 14, and has the same configuration as that of FIG. 1 except that a maintenance terminal 150 is connected. That is, in the above-described embodiment, the calling method is set from the key telephone 3, but in this embodiment, the calling method is set by an input means provided in the maintenance terminal 150 provided separately from the key telephone 3. Since other operations are the same as those in the above embodiment, a description thereof will be omitted.
According to the present embodiment, it is possible to collectively set the calling method for each key telephone 3.
[0065]
(Ninth embodiment)
This embodiment is a button telephone apparatus shown in FIG. 15 and is the same as that shown in FIG. 1 except that an information terminal device, such as a personal computer PC, that can send and receive data to and from the control unit 14 is connected separately from the telephone telephone 3 call. It has the same configuration. That is, in the above embodiment, the calling method is set from the key telephone 3, but in this embodiment, it is performed by an operation from the personal computer PC connected to the key telephone 3. Since other operations are the same as those in the first to seventh embodiments, description thereof will be omitted.
[0066]
According to the present embodiment, there is an effect that the setting of the calling method for each key telephone 3 can be performed using the information terminal device.
In the above embodiment, an example in which the information terminal device is connected to the key telephone 3 has been described, but the present invention is not limited to this. For example, as shown in FIG. 16, the calling method may be set by an operation from a personal computer PC connected via the analog line network 2.
[0067]
【The invention's effect】
According to the present invention, when an incoming call is made to the extension number of the key telephone when the destination key telephone is busy using a virtual extension number, the caller of the extension number is notified that the call is busy. Can do.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a first embodiment of a telephone exchange apparatus according to the present invention.
FIG. 2 is a plan view showing a detailed example of the key telephone shown in FIG. 1;
FIG. 3 is a flowchart showing a processing procedure when setting a function of a calling method in the main apparatus shown in FIG. 1;
FIG. 4 is a flowchart showing a calling operation procedure of the key telephone apparatus shown in FIG. 1;
FIG. 5 is a diagram for explaining a second embodiment of a button telephone device according to the present invention;
6 is a flowchart showing a calling operation procedure of the key telephone apparatus shown in FIG. 5;
FIG. 7 is a diagram for explaining a third embodiment of a button telephone apparatus according to the present invention;
FIG. 8 is a flowchart showing a calling operation procedure of the key telephone apparatus shown in FIG. 7;
FIG. 9 is a block diagram for explaining a fourth embodiment of the button telephone device of the present invention;
10 is a flowchart showing a calling operation procedure of the key telephone apparatus shown in FIG. 9;
FIG. 11 is a flowchart showing the operation procedure of the fifth embodiment of the key telephone device of the present invention;
FIG. 12 is a memory map of the main device in the sixth embodiment of the button telephone device of the present invention;
FIG. 13 is a memory map of the main device in the seventh embodiment of the key telephone device of the present invention;
FIG. 14 is a block diagram for explaining an eighth embodiment of a button telephone apparatus according to the present invention;
FIG. 15 is a block diagram for explaining a ninth embodiment of the key telephone apparatus of the present invention;
FIG. 16 is a block diagram for explaining a modification of the ninth embodiment of the button telephone device of the present invention;
[Explanation of symbols]
1 Main unit
2 Analog subscriber line
3-button telephone (DKT)
4 Single phone (SLT)
11 Station line unit
12 Extension unit
13 Standard telephone unit
14 Control unit
15 Control data highway
16 PCM Highway
31c ~ 31h Flexible button
32 Dial pad
33 Display
34 Handset
35 Change button
36 Select button
141 One-chip microcomputer
142 16-bit macro computer
144 RAM
146 Time switch circuit
147 Tone circuit

Claims (12)

It is a button telephone device that can assign a virtual extension number to a telephone in addition to an extension number, and has a function that enables a telephone call using the extension number and the virtual extension number ,
A setting means for performing a setting for returning a busy tone to the calling side when there is an incoming call during a call using the virtual extension number on the telephone;
Determining means for determining whether the telephone is busy using the virtual extension number;
When an incoming call arrives at the extension number during a call using the virtual extension number at the telephone, a busy sound is sent to the calling side instead of sending a readout sound to the telephone according to the setting of the setting means. key telephone system characterized by comprising a busy tone returning means for returning. It is a button telephone device that can assign a virtual extension number to a telephone in addition to an extension number, and has a function that enables a telephone call using the extension number and the virtual extension number ,
A setting means for performing a setting to return a voice mail to the calling side when there is an incoming call during a call using the virtual extension number on the telephone;
Determining means for determining whether the telephone is busy using the virtual extension number;
When an incoming call arrives at the extension number during a call using the virtual extension number at the telephone, a voice mail is returned to the calling party instead of sending a ring tone to the telephone according to the setting of the setting means. key telephone system characterized in that it comprises a voice mail returning means for. It is a button telephone device that can assign a virtual extension number to a telephone in addition to an extension number, and has a function that enables a telephone call using the extension number and the virtual extension number ,
A setting means for performing a setting to return a voice mail to the calling side and record a message on the calling side when there is an incoming call during a call using the virtual extension number on the telephone;
Determining means for determining whether the telephone is busy using the virtual extension number;
When an incoming call arrives at the extension number during a call using the virtual extension number at the telephone, a voice mail is returned to the calling party instead of sending a ring tone to the telephone according to the setting of the setting means. key telephone system characterized in that it comprises a message recording means to and Record originating message. The setting in the setting means should be performed in advance before starting a call.
The button telephone apparatus according to claim 1, wherein: The setting in the setting means is performed in advance using the virtual extension number and before the incoming call to the extension number.
The button telephone apparatus according to claim 1, wherein: The setting in the setting means is performed during a call using the virtual extension number and after receiving the extension number.
The button telephone apparatus according to claim 1, wherein: The telephone, key telephone system as claimed in any one of claims 1 to 3, characterized by further comprising display means for displaying the setting contents by the setting means. When there is an incoming call to the extension number during a call using the virtual extension number in the phone, to claim 1, characterized in that it further comprises an incoming call display means for displaying the incoming call to the said extension The button telephone apparatus according to claim 3 . 9. The button telephone apparatus according to claim 8, wherein the incoming call display means displays a telephone number of a caller of the extension number. The setting by the setting means should be performed for each caller ID
2. The button telephone apparatus according to claim 1, wherein: The setting by the setting means is performed with a priority for each caller number,
The busy tone return means, when there is an incoming call to the extension number during a call using the virtual extension number at the telephone, according to the setting contents of the setting means, Instead of sending a ring tone to the telephone when the priority of the number is lower than the priority of the caller number of the caller to the virtual extension number, a busy tone is returned to the caller of the extension number thing
Claims characterized by 1 The button telephone device described. An incoming call reception method for a button telephone apparatus that can assign a virtual extension number to a telephone in addition to an extension number, and has a function that enables a telephone call using the extension number and the virtual extension number ,
If the destination telephone receives an incoming call using an extension number, it returns a busy tone to the calling party,
If the destination telephone receives a call using the virtual extension number and the extension number is received , in that case, whether or not to return a busy tone to the calling side is set according to the set contents . An incoming call reception method for a button telephone device, characterized by returning a busy tone.

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