JP3597126B2 - Key telephone equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a key telephone device, and in particular, when there is a key telephone which has been in a standby state for a certain period of time or longer without performing a button operation among connected key telephones, it responds to the key telephone with an incoming call. The present invention relates to a key telephone apparatus for automatically setting an answering machine answering mode performed by an automatic answering.
[0002]
[Prior art]
In a conventional key telephone device, if the answering machine is set to the answering machine mode when the user is out of the office, the answering machine will be activated when the incoming call is received from the key telephone set to the answering machine mode. Then, an incoming call is connected to the incoming call to the key telephone, an answering machine response message is automatically sent as voice guidance, and a voice message from the caller is automatically recorded. With regard to the setting of the answering machine response mode, a time zone for setting the answering machine response mode is set in advance, and when this time zone is reached, the answering machine response mode is automatically set. For example, in the case of a button telephone device in an office where people are unmanned at night, if the night time zone is set as described above and the answering machine answer mode is automatically set, the An incoming call to the key telephone set can be handled in an answering machine response mode.
[0003]
[Problems to be solved by the invention]
In the above-described conventional key telephone device, a time zone in which the key telephone is set to the answering machine mode is set in advance, and when the time zone is reached, the answering machine mode can be automatically set. When a person using a key phone in the office goes out for a long time in the daytime and forgets to set the answering machine mode, he or she may go out for a short time in the daytime. If you go out without setting the answer mode, but you go out for a long time due to the convenience, you will not be able to avoid receiving missed calls that may be important calls you have. are doing.
[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a key telephone apparatus that automatically sets an answering machine response mode when a predetermined period of time has elapsed while the state of the key telephone is in a standby state.
[0005]
[Means for Solving the Problems]
A key telephone apparatus according to a first aspect of the present invention is a key telephone apparatus connected to a key telephone and a telephone line for performing a connection process between the key telephone and the telephone line when making and receiving a call. During the period, when it is detected that the button operation of the key telephone is not performed and the standby state is continued, the operation mode at the time of the incoming call is shifted from the normal operation mode to the answering machine response mode in which the answering machine function operates. , After that, when there is an incoming call from the telephone line, When the ringing period of the ring tone signal notifying the incoming call is not equal to the predetermined period, the incoming connection is not performed for this incoming call, When the ringing cycle of the ring tone signal for notifying the incoming call is equal to a predetermined cycle, the incoming call is connected to the incoming call and the answering machine function is activated.
[0006]
Further, in the key telephone apparatus according to the second invention, in the key telephone apparatus according to the first invention, when it is detected that the button operation is performed after shifting to the answering machine response mode, the operation mode is changed to the operation mode. The mode is changed from the answering machine response mode to the normal mode.
[0007]
Further, the key telephone apparatus of the third invention is connected to a plurality of key telephones and a telephone line, and (A) digitally multiplexes output signals from each of the plural key telephones to perform a first multiplexing. A telephone input / output signal multiplexing / demultiplexing unit for outputting a second multiplexed signal and separating the input multiplexed signal into input signals to each of the plurality of key telephones; An outgoing / incoming connection control unit for performing incoming connection control; (C) recording of a voice message serving as voice guidance for answering machine answering when receiving a call from the telephone line; and the voice message when receiving a call from the telephone line (D) a telephone input / output signal multiplexing / demultiplexing unit, a calling / calling connection control unit, and a voice recording / reproducing unit for recording and reproducing a voice message from a caller. A time-division switch for performing a process of connecting a transmission path of an audio signal between units, wherein (E) the plurality of button telephones do not perform any button operation for a predetermined period of time and wait. A telephone state detection unit that monitors whether or not the state has been continued and detects a state in which the button operation has not been performed on the plurality of key telephones and the standby state has been continued; (F) a state of the plurality of key telephones An operation mode setting table for setting each operation mode is built in, and a key telephone in a state in which a standby state is continued without performing a button operation is detected in the plurality of key telephones by the telephone state detection unit. At this time, on the operation mode setting table, the operation mode at the time of the incoming call of the key telephone is changed from the normal operation mode to the answering machine response mode in which the answering machine function operates. System for controlling the outgoing / incoming connection control unit, the voice recording / reproducing unit, and the time-division switch so that the answering machine function is activated each time there is an incoming call from the telephone line. Control unit The call connection control unit determines whether or not the signal indicating the incoming call has information of a ringing tone of a ring tone signal, which is information designated in advance, and determines whether the signal indicating the incoming call is a ring. When the period of the tone of the tone signal is equal to a predetermined period, the system control unit is notified of this, and the system control unit performs the incoming / outgoing call connection so as to perform the incoming connection for the incoming call. An instruction is given to a control unit, and the outgoing / incoming call connection control unit makes an incoming call connection and activates the answering machine function. It is characterized by that.
[0008]
A key telephone apparatus according to a fourth aspect of the present invention is the key telephone apparatus according to the third aspect of the present invention, characterized in that the key telephone apparatus further comprises means for setting and changing the predetermined length of time.
[0009]
Further, in the key telephone apparatus according to the fifth invention, in the key telephone apparatus according to the third invention, when it is detected that the button operation has been performed after shifting to the answering machine response mode, the system control unit includes: The operation mode is changed from the answering machine response mode to the normal mode.
[0010]
A key telephone apparatus according to a sixth aspect of the present invention is the key telephone apparatus according to the fifth aspect, wherein the predetermined information is a ringing cycle of the ring tone signal of the incoming call. .
[0011]
A key telephone apparatus according to a seventh aspect of the present invention is characterized in that the information specified in advance is a telephone number of a source of the incoming call.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is a block diagram showing a first embodiment of the key telephone apparatus of the present invention.
[0014]
A key telephone apparatus 10a of the present invention shown in FIG. 1 digitally multiplexes output signals 11a to 11c from a plurality of connected key telephones 7a to 7c and outputs a multiplexed signal 12, and outputs the multiplexed signal. Connection control between the telephone input / output signal multiplexing / demultiplexing unit 3 for inputting the digitized signal 13 and separating the input signals 14a to 14c into the respective key telephones 7a to 7c, and the external lines (telephone lines) 8a to 8c An incoming / outgoing connection control unit 4a for controlling incoming and outgoing connections; and recording of a voice message for voice guidance for answering machine answering when receiving a call from the outside line 8a to 8c; A voice recording / reproducing unit 5 for reproducing a voice message and recording / reproducing a voice message from a caller; Connection processing for connecting the output signal time slot of each of the key telephones 7a to 7c to the input signal time slot to the call connection control section 4a, and the output from the call connection control section 4a. Connection processing for connecting the signal time slot to the input signal time slot to each of the key telephones 7a to 7c of the multiplexed signal 13 input to the telephone input / output signal multiplexing / demultiplexing unit 3. Connection processing for connecting the output signal time slot of each of the key telephones 7a to 7c in the multiplexed signal 12 output from the signal multiplexing / demultiplexing section 3 to the input signal time slot to the voice recording / reproducing section 5. , And a time slot for an output signal from the voice recording / reproducing unit 5 with a button of the multiplexed signal 13 input to the telephone input / output signal multiplexing / demultiplexing unit 3. A connection process for connecting to the input signal time slot of each of the handsets 7a to 7c, and furthermore, a digitized signal transmitted and received for answering machine response in the answering machine response mode between the calling / calling connection control section 4a and the voice recording / reproducing section 5. A time-division switch 2 for interconnecting input / output signal time slots for transmitting multiplexed audio signals, and no button operation on the key telephones 7a to 7c for a predetermined period of time. Whether the standby state has been continued or not is determined by a telephone state detection unit 6 for detecting an output signal output from the key telephones 7a to 7c when a button is operated, and setting of each operation mode of the key telephones 7a to 7c. An operation mode setting table to be executed is built in, and the telephone input / output signal multiplies according to the operation mode set in the operation mode setting table. It comprises a multiplexing / separating unit 3, an outgoing / incoming connection control unit 4a, a voice recording / reproducing unit 5, a telephone state detecting unit 6, and a system control unit 1a for controlling the time division switch 2.
[0015]
The outside lines 8a to 8c correspond one-to-one with the key telephones 7a to 7c, respectively, and when an incoming call is received on one outside line, a ringing sound for notifying the incoming call is performed only at the key telephone corresponding to the outside line. Shall be
[0016]
Next, the operation will be described.
[0017]
In FIG. 1, when a button operation for making or receiving a call is performed on the key telephones 7 a to 7 c, the button operation performed on each of the key telephones 7 a to 7 c causes the key telephones 7 a to 7 c to operate. An output signal corresponding to the button operation for the above-mentioned call transmission / reception operation is transmitted to the system control unit 1a via the telephone input / output signal multiplexing / demultiplexing unit 3. The signal is input to the system control unit 1a via the separation unit 3, and in response, the system control unit 1a notifies the telephone state detection unit 6 that the output signal has been input.
[0018]
The telephone state detection unit 6 constantly monitors the presence or absence of the output signal output from the key telephone, and performs a button operation for calling / incoming / receiving operation in each of the key telephones 7a to 7c for a predetermined time. When the output signal is not output from the key telephones 7a to 7c, the system control unit 1a determines that the key telephone that has not output the output signal is a key telephone that has been in the standby state for a certain period of time. Notify.
[0019]
For example, in the key telephone 7a, when a button operation for making / receiving a call is not performed for a predetermined period of time and the output signal is not output from the key telephone 7a, the button for which the output signal is not output is output. The telephone 7a is notified to the system control unit 1a as a button telephone in which the standby state has been continued for a certain period of time. Hereinafter, the operation of the key telephone 7a will be described as an example.
[0020]
The system control unit 1a changes the operation mode of the button telephone 7a, which has been notified from the telephone state detection unit 6, of the button telephone 7a that has been in a standby state without performing a button operation for an outgoing / incoming operation from a normal mode. Then, the setting is changed on the built-in operation mode setting table to the answering machine response mode in which the answering machine function operates at the time of an incoming call.
[0021]
Thereafter, the system control unit 1a notifies the key telephone 7a, whose setting has been changed to the answering machine response mode in the operation mode setting table, that the incoming call has been received from the corresponding outside line 8a from the call connection control unit 4a. And instructs the outgoing / incoming connection control unit 4a to perform incoming connection control for incoming calls from the outside line 8a, and instructs the time-division switch 2 to perform the outgoing / incoming connection control unit 4a, Is instructed to connect the audio signal transmission path between. Next, the system control unit 1a instructs the voice recording / reproducing unit 5 to activate the answering machine function in response to an incoming call to the key telephone.
[0022]
With the above control by the system control unit 1a, the voice recording / reproducing unit 5 enters an operation of reproducing a pre-recorded voice message necessary for performing an automatic answering operation for an incoming call from the outside line 8a, and The voice message is automatically reproduced, transmitted to the outside line 8a via the outgoing / incoming connection control unit 4a, and automatically responding to an incoming call from the outside line 8a.
[0023]
The voice recording / reproducing unit 5 automatically reproduces the voice message and sends the voice message to the outside line 8a. Then, after a predetermined period of time, the voice recording / playback unit 5 starts a recording operation and transmits the voice message sent to the outside line 8a. When the caller hears the voice message of the caller according to the content of the voice message, the voice message is received and recorded from the outside line 8a via the call connection controller 4a.
[0024]
The outline of the operation of the key telephone apparatus shown in FIG. 1 has been described above.
[0025]
FIG. 2 is a flowchart showing an example of a detailed operation of the key telephone apparatus shown in FIG.
[0026]
Next, the operation when the answering machine response mode is automatically set and the operation of the key telephone apparatus when the answering machine response mode is set will be described in detail with reference to FIGS.
[0027]
The telephone state detection section 6 of the key telephone apparatus 10a shown in FIG. 1 has a plurality of timers corresponding to the key telephones 7a to 7c. The telephone state detection unit 6 detects whether or not the time during which no button operation is performed in each of the key telephones 7a to 7c continues for a predetermined time by using the plurality of timers. The operation of each step in the key telephone apparatus 10a shown in FIG. 7 indicates the operation of the key telephone 7a and the timer corresponding to the key telephone 7a.
[0028]
The telephone state detection unit 6 starts the timer according to an instruction from the system control unit 1a when the operation of the key telephone apparatus 10a starts (step 1 in FIG. 2). The telephone state detection unit 6 determines whether or not an output signal that is output from the key telephone 7a via the telephone input / output signal multiplexing / demultiplexing unit 3 every time a button operation of the key telephone 7a is performed, that is, It is periodically checked at a predetermined interval whether or not the button operation of the key telephone 7a has been performed (step 2). When the output signal is detected, the telephone state detection unit 6 performs the button operation with the key telephone 7a. Recognizing that has been performed, the corresponding timer is reset (step 3), and the process returns to step 1 to restart the timer.
[0029]
The telephone state detecting unit 6 checks whether or not the time-up time has been reached without a button operation of the key telephone 7a for a predetermined time set in the timer (step 4). When the telephone state detecting unit 6 detects that the time-up time has been reached, the telephone state detecting unit 6 notifies the system control unit 1a of this. Upon receiving this notification, the system control unit 1a changes the setting of the operation mode of the key telephone 7a that has not been operated for a predetermined period of time in the operation mode setting table, and sets the mode from the normal mode to the answering machine response mode. (Step 5).
[0030]
If it is determined in step 4 that the timer operating on the key telephone 7a has not reached the time-up time by the telephone state detecting unit 6, the operation returns to step 2 and the operation returns to step 2. The telephone state detection unit 6 continues to detect whether or not the output signal output from the key telephone 7a is periodically detected.
[0031]
After the setting is changed from the normal mode to the answering machine response mode by the system control unit 1a, a button operation is performed, and an output signal output from the key telephone 7a is detected by the telephone state detection unit 6, whereby the button of the key telephone 7a is When it is checked that the operation has been performed (step 6), the system control unit 1a notified of this from the telephone state detection unit 6 changes the operation mode of the key telephone 7a from the answering machine response mode in the operation mode setting table. Change settings to normal mode. That is, when the system control unit 1a releases the answering machine response mode, which is the operation mode of the key telephone 7a (step 7), and notifies the telephone state detection unit 6 that the answering machine response mode has been released, the operation proceeds to step 3. Returning, the telephone state detecting unit 6 resets the timer.
[0032]
On the other hand, the outgoing / incoming connection control unit 4a checks whether there is an incoming call on the outside line 8a, and no button operation is performed on the key telephone 7a in step 6, and no output signal output from the key telephone 7a is detected. In this state, when an incoming call from the outside line 8a is detected by the outgoing / incoming connection control unit 4a (step 8), the outgoing / incoming connection control unit 4a notifies the system control unit 1a that the incoming call from the outside line 8a has been detected. After receiving the notification, the system control unit 1a receives the notification, confirms from the operation mode setting table that the answering machine has been set to the answering machine mode, and then performs the incoming connection for the incoming call from the outside line 8a and makes the incoming / outgoing call. The connection control unit 4a and the voice recording / reproducing unit 5 are connected via the time division switch 2 (step 9). In addition, the voice recording / reproducing unit 5 is instructed to transmit a prerecorded voice message for an automatic response to the caller, and the voice recording / reproducing unit 5 outputs a voice addressed to the caller. The message is transmitted via the time division switch 2 as a message message (step 10).
[0033]
If the incoming call from the outside line 8a is not detected by the outgoing / incoming connection control unit 4a while the answering machine response mode is set in step 8, the outgoing / incoming connection control unit 4a notifies the system control unit 1a of this fact. Then, the operation of the key telephone apparatus returns to step 6, and it is determined in advance whether or not an output signal output from the key telephone 7a is detected, ie, whether or not a button operation of the key telephone 7a has been performed. The operation is periodically performed by the telephone state detection unit 6 at intervals, and the apparatus enters a state of waiting for detection of a button operation of the key telephone 7a.
[0034]
Further, after the transmission of the above-mentioned message message in step 10, the system control unit 1a determines whether or not the caller who has heard the above-mentioned message message transmitted to the outside line 8a transmits the message message in response to the message message. The voice recording / reproducing unit 5 is instructed to enter a message recording operation state for recording the message described above, and the voice recording / reproducing unit 5 enters the message recording operation state in response to an instruction from the system control unit 1a. Step 11).
[0035]
The outgoing / incoming connection control unit 4a checks whether or not the caller is terminated and the hook-on is performed, and whether or not a busy tone indicating the caller's end is flowing from the outside line 8a (step 12). When the caller end is detected, the call connection control unit 4a notifies the system control unit 1a of the detection of the busy tone and releases the connection with the outside line 8a to release the outside line 8a (step). 13). The operation of the key telephone apparatus returns to step 6, and is in a state of waiting for detection of a button operation on the key telephone 7a.
[0036]
As described above, for example, when the button operation of the key telephone 7a is not performed for a predetermined time, the answering machine response mode is set for the key telephone 7a, and the incoming call from the outside line 8a corresponding to the key telephone 7a is set. The answering machine response is made only to.
[0037]
Next, a second embodiment of the key telephone apparatus of the present invention will be described.
[0038]
FIG. 3 is a block diagram showing a second embodiment of the key telephone apparatus of the present invention.
[0039]
The key telephone apparatus 10b of the present invention shown in FIG. 3 is similar to the configuration of the key telephone apparatus 10a of the present invention shown in FIG. 1, and the outgoing / incoming connection control unit 4a of the key telephone apparatus 10a of the present invention shown in FIG. Instead of the system control unit 1a, a transmission / reception connection control unit 4b for controlling transmission / reception to / from the outside lines 8a to 8c is provided, and a system control unit 1b is provided instead of the system control unit 1a.
[0040]
In FIG. 3, the operations of the key telephones 7a to 7c, the telephone input / output signal multiplexing / demultiplexing unit 3, the voice recording / reproducing unit 5, the time division switch 2, and the telephone state detecting unit 6 are shown in FIG. , Key telephones 7a to 7c, telephone input / output signal multiplexing / demultiplexing unit 3, voice recording / reproducing unit 5, time division switch 2, and telephone state detecting unit 6. The outgoing / incoming connection control unit 4b in FIG. 3 has a function of performing outgoing / incoming / outgoing control between the outside lines 8a to 8c, similarly to the outgoing / incoming connection control unit 4a in FIG. Has a function of determining whether or not the ringing tone of the ring tone signal of the incoming call is equal to a predetermined period when there is an incoming call.
[0041]
The system control unit 1b of FIG. 3 is, like the system control unit 1a of FIG. 1, a key telephone 7a-7c, a telephone input / output signal multiplexing / demultiplexing unit 3, a voice recording / reproducing unit 5, a time division switch 2, and a telephone. In addition to having a function of controlling each unit of the state detection unit 6, the call connection control unit 4b determines whether or not the period of the ring tone signal of the incoming ring tone signal from the external lines 8a to 8c is equal to a predetermined period. In the case of judging whether or not there is a function of controlling the outgoing / incoming connection control unit 4b based on the judgment result.
[0042]
FIG. 4 is a flowchart showing an example of the detailed operation of the key telephone apparatus 10b shown in FIG.
[0043]
The flowchart of the key telephone apparatus 10b shown in FIG. 4 is the same as that of FIG. 2 except that step 108A is added to the flowchart showing an example of the operation of the key telephone apparatus 10a of FIG. That is, steps S101 to S108 in FIG. 4 correspond to steps S1 to S8 in FIG. 2 and the operation of each step is the same, and steps S109 to S113 in FIG. 4 also correspond to steps S9 to S13 in FIG. The operation of each step is the same.
[0044]
In FIG. 4, when a call is received from outside lines 8a to 8c in step 108, call connection control section 4b sets the ring tone signal of the incoming call at a period equal to a predetermined period. A step 108A for determining whether or not there is is added.
[0045]
In FIG. 4 as well, the operation of each step of the key telephone apparatus 10b of FIG. 3 is similar to the operation of each step of the key telephone apparatus 10a shown in FIG. The operation of the corresponding timer shall be shown.
[0046]
In step 108A, when the ringing period of the ring tone signal for the incoming call from the outside line 8a detected in step 108 is equal to a predetermined period, the call connection control unit 4b notifies the system control unit 1b of this fact. And the system control section 1b instructs the outgoing / incoming connection control section 4b to make an incoming connection for this incoming call. The outgoing / incoming connection control unit 4b makes an incoming connection for an incoming call from the outside line 8a based on an instruction from the system control unit 1b (step 109).
[0047]
In step 108A, when the ringing period of the ring tone signal for the incoming call from the outside line 8a is not the same as the period specified in advance, the process returns to step 106 and is output from the key telephone 7a by button operation. It is in a state of waiting for detection of an output signal.
[0048]
As described above, the key telephone apparatus 10b according to the present invention shown in FIG. 3 has the same function as the key telephone apparatus 10a according to the present invention shown in FIG. 1, but when receiving a call from the outside line 8a to 8c. It differs from the key telephone apparatus 10a of the present invention shown in FIG. 1 in that an automatic response is made only when the ringing tone of the ring tone signal has a cycle equal to a predetermined cycle.
[0049]
That is, the key telephone apparatus 10b of the present invention shown in FIG. 3 is configured as described above, for example, by changing the ringing period of the ring tone signal of the incoming call from the private telephone to the ring of the incoming call from the public telephone. If the ringing period of the ring tone signal at the time of the incoming call from the public telephone is set as the above-specified period, the ringing period from the public telephone is set. Only when a call is made, the automatic answering function is activated to make an incoming connection for the incoming call, and it is possible to receive a call from a public phone such as a customer's phone which may be a business important phone. Damage can be avoided.
[0050]
In addition, in the present configuration of the key telephone apparatus 10b shown in FIG. 3, when a call is received from the outside line 8a in step 108 of FIG. 4, the period of the ringing tone of the ring tone signal of the incoming call is set to a predetermined period. It has been described that it is determined whether or not the periods are the same (step 108A), and when the periods are the same, the incoming connection is performed for the incoming call. In advance, the system control unit 1b pre-designates the telephone number of the caller who automatically responds to the incoming call, and the system control unit 4b detects the incoming call from the outside line 8a to 8c when the incoming / outgoing connection control unit 4b detects the incoming call. The unit 1b determines whether an incoming call from the outside line 8a to 8c is an incoming call from a caller having a telephone number specified in advance, and if there is an incoming call from the source of the specified telephone number. When Temu controller 1b may be configured to instruct the incoming and outgoing connection control unit 4b to perform incoming connections for that call.
[0051]
That is, the outgoing / incoming connection control unit 4b determines whether the signal indicating the incoming call has information equal to the information specified in advance, and the signal indicating the incoming call has information equal to the information specified in advance. At this time, this is notified to the system control unit 1b, and the system control unit 1b instructs the call connection control unit 4b to perform the call connection for the incoming call, and the call connection control unit 4b Makes an incoming connection. Therefore, the information specified in advance may be information other than the ringing tone of the ring tone signal and the telephone number of the caller.
[0052]
In the above description, the telephone state detection unit 6 has been described to detect whether or not a button operation has been performed by detecting an output signal output from the key telephone at the time of button operation. However, if the operation is limited to a specific button operation, for example, only a button operation for making and receiving a call, a person other than the person who normally uses the key telephone happens to touch the button of the key telephone accidentally, and other than the button operation for making and receiving a call. In the case where the button operation is performed, it is not necessary to detect that the button operation has been performed.
[0053]
Further, the telephone state detection unit 6 shown in FIGS. 1 and 3 may be provided with a unit for changing the predetermined length of the predetermined time as necessary.
[0054]
In the above description, the outside lines 8a to 8c have a one-to-one correspondence with the key telephones 7a to 7c, and when a call is received on one outside line, a ringing sound for notifying the incoming call is made only in the corresponding key telephone. A case has been described where the key telephone device is configured to be performed. However, even if a call is received on any of the external lines 8a to 8c, the ringing to notify the incoming call in all the key telephones of the key telephones 7a to 7c is performed. The present invention can be applied to the key telephone device shown in FIGS. However, in this case, if the button operation is not performed on all the key telephones 7a to 7c for a predetermined time, the answering machine response mode is set for all the key telephones 7a to 7c. The answering machine responds to an incoming call from any of the outside lines 8a to 8c.
[0055]
【The invention's effect】
As described above, when it is detected that there is a key telephone that has not been operated for a predetermined period of time and has been in the standby state, the operation mode of the key telephone when receiving a call is set to the normal mode. From the operation mode to the answering machine answering mode in which the answering machine function is activated, and then, when there is an incoming call from the telephone line, the answering machine function is activated each time, so that the key telephone can be used in the office. When the person using the phone goes out for a long time in the daytime, forgets to set the answering machine mode and goes out, or does not set the answering machine mode for the short time in the daytime Even if the user goes out for a long time due to circumstances, the state of the key telephone is set to the predetermined state while the standby state is maintained. When the time has elapsed, the answering machine mode is set automatically, so after the standby state for a certain period of time has elapsed and the answering machine mode has been set automatically, you can record the message of the other party's phone. This has the effect of avoiding missed calls.
[0056]
Further, it is determined whether or not the information included in the signal notifying the incoming call is information equal to the information specified in advance, and when the information included in the signal indicating the incoming call is equal to the information specified in advance, Incoming connections can be made only at the time of a predetermined specific incoming call, and calls that may be important in business, such as calls from customers, can be made. This has the effect that it is possible to avoid missing.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a first embodiment of a key telephone apparatus according to the present invention.
FIG. 2 is a flowchart showing an example of a detailed operation in the key telephone apparatus shown in FIG.
FIG. 3 is a block diagram showing a second embodiment of the key telephone apparatus of the present invention.
FIG. 4 is a flowchart showing an example of a detailed operation of the key telephone apparatus shown in FIG.
[Explanation of symbols]
1a, 1b System control unit
2 time division switch
3 Telephone input / output signal multiplexing / demultiplexing unit
4a, 4b outgoing / incoming connection control unit
5 Voice recording / playback unit
6 Telephone state detector
7a-7c button telephone
8a-8c outside line
10a, 10b button telephone device
11a-11c output signal
12 multiplexed signal
13 Multiplexed signal
14a-14c input signal

Claims (5)

In a button telephone device connected to a key telephone and a telephone line and performing connection processing at the time of outgoing / incoming between the key telephone and the telephone line, the button operation of the key telephone is performed for a predetermined period of time. When it is detected that the standby state has been continued without being performed, the operation mode at the time of the incoming call is shifted from the normal operation mode to the answering machine answering mode in which the answering machine function operates, and thereafter, the incoming call from the telephone line is received. When the ringing tone of the ring tone signal notifying the incoming call is not equal to a predetermined period, the incoming call is not connected and the ring tone signal notifying the incoming call is not sent. When the ringing period is equal to a predetermined period, the incoming call is connected to the incoming call, and the answering machine function is activated. Tan telephone device. 2. The key telephone device according to claim 1, wherein, after the shift to the answering machine response mode, when it is detected that the button operation is performed, the operation mode is shifted from the answering machine answer mode to the normal mode. Characteristic key telephone device. Connected to a plurality of key telephones and a telephone line, and (A) digitally multiplexing output signals from each of the plurality of key telephones and outputting them as a first multiplexed signal; and a second multiplexing signal. A telephone input / output signal multiplexing / demultiplexing unit for inputting a signal and separating the input signal to each of the plurality of key telephones; (B) a transmission / reception connection control unit for performing transmission / reception connection control with a telephone line; C) Recording of a voice message serving as voice guidance for answering machine performed when receiving a call from the telephone line, reproduction of the voice message when receiving a call from the telephone line, and recording of a voice message from a caller A voice recording / reproducing unit for reproduction; (D) connection processing of a transmission line of a voice signal between the telephone input / output signal multiplexing / demultiplexing unit, the calling / receiving connection control unit, and the voice recording / reproducing unit. And (E) monitoring whether or not the plurality of button telephones have not been operated by a button for a predetermined period of time and have been in a standby state. And (F) an operation mode setting table for setting an operation mode of each of the plurality of key telephones. The telephone state detection unit detects a state in which the button operation is not performed on the plurality of key telephones and the standby state is continued. Built-in, when a button telephone in a state where the standby state is continued without performing a button operation is detected by the telephone state detection unit in the plurality of key telephones, the key telephone of the key telephone is displayed on the operation mode setting table. The operation mode at the time of the incoming call is shifted from the normal operation mode to the answering machine answering mode in which the answering machine function operates, and thereafter, the telephone line And a system control unit for controlling the voice recording / reproducing unit and the time-division switch so that the answering machine function is activated each time there is an incoming call. The control unit determines whether the signal notifying the incoming call has information of a ring tone signal sounding period, which is information designated in advance, and sounds a ring tone signal notifying the incoming call. When the cycle of the call is equal to the cycle specified in advance, the system control unit is notified of this, and the system control unit instructs the outgoing / incoming connection control unit to perform an incoming connection for this incoming call. A key telephone device in which an instruction is issued, the call connection control unit performs an incoming call connection, and the answering machine function is activated. 4. The key telephone apparatus according to claim 3, further comprising means for setting and changing a predetermined length of time. 4. The key telephone device according to claim 3, wherein, when the operation of the button is detected after shifting to the answering machine response mode, the system control unit changes the operation mode from the answering machine response mode to the normal mode. A key telephone device characterized by shifting to (1).

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