JP3680695B2 - Button telephone equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a button telephone apparatus, and more particularly to a button telephone apparatus that temporarily interrupts an original call in response to an interrupt incoming call during a call and forms an interrupted call with a handset different from the original call.
[0002]
[Prior art]
In a general telephone network, when a call is received from another party on the telephone line during a call, a predetermined notification signal is sent to the telephone line to notify the user of a call interrupted call. An interrupt incoming call service (so-called call waiting service) is provided. When this service is used in a button telephone device, an interrupted call may be transferred to a desired handset using general external line transfer. For example, the slave A in a call responds to an incoming call interrupt, listens to the call partner from the interrupt partner, temporarily holds the interrupt call, calls the extension of the call partner B, and interrupts it. Calls can be transferred outside the line.
[0003]
When the interrupted call ends, the user of the slave unit B notifies the user of the slave unit A that the interrupted call has ended, and in response to this notification, the user of the slave unit A makes the original call What is necessary is just to reform. As a notification method, the notification may be made verbally, or the user of the slave unit B may notify the user of the slave unit A through an extension call.
[0004]
[Problems to be solved by the invention]
However, in such a conventional button telephone device, when the interrupt call is ended, the user of the slave unit B indicates that the interrupt call has ended with respect to the user of the slave unit A. Since it is necessary to notify by an extension call, there is a problem that the trouble and operation burden at the end of the interrupt call for the user of the slave unit B increase. Further, if the user of this handset B fails to notify, the original call cannot be recreated in cooperation with the end of the interrupted call, and the destination of the original call held on the network side New incoming call from. When the other handset responds to the incoming call, it is necessary to transfer the incoming call to the handset A, and there is a problem that it is not possible to smoothly shift to the re-formation of the original call.
An object of the present invention is to solve such a problem, and to provide a button telephone device capable of smoothly transitioning from the interruption call termination to the re-formation of the original call without requiring a complicated operation. Yes.
[0005]
[Means for Solving the Problems]
In order to achieve such an object, the button telephone device according to the present invention temporarily interrupts the call by the first slave unit using the telephone line when there is an incoming call interrupted to the telephone line during the call, In a button telephone device that forms a barge call by another second handset using a telephone line, an end notification means is provided, and a call is made by the first handset according to the end of the barge call. The end of the interruption call is notified.
[0006]
As for the notification of the end of the interrupted call by the end notification means, a recapture means for transmitting a hooking signal to the telephone line and recapturing the call partner of the first slave unit in response to the end of the interrupted call, and the recapture An end-of-call detecting means for detecting whether or not the called party has ended, and according to the result of the end-of-call detection of the other party by the end-of-call detecting means You may make it judge necessity.
Further, in response to the end of the interrupted call, a re-capturing means for transmitting a hooking signal to the telephone line to re-capture the call partner of the first handset, and whether the re-captured call partner has ended If the end of the other party is not detected by the end-of-call detection means, a voice signal consisting of a sound or voice message is sent to the telephone line, and the telephone line is put on hold. You may make it.
[0007]
Further, in response to the end of the interrupted call, a re-capturing means for transmitting a hooking signal to the telephone line to re-capture the call partner of the first handset, and whether or not the re-captured call partner has ended An end-of-call detecting means for detecting whether or not the other party's call is detected by the end-of-call detecting means while the first handset is being called.
Further, when the first handset responds to the call by the interruption end notification means, the original call by the first handset using the telephone line may be recreated.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram of a button telephone apparatus according to an embodiment of the present invention. In the figure, 1 is a main device connected to one or more telephone lines 11, and 2A to 2N are N (N ≧ 2) slave devices (buttons) connected to the main device 10 via an extension transmission line 3. Telephone).
[0009]
In the main apparatus 1, 12 is an external line I / F unit for terminating and controlling the telephone line 11, 13 is an internal line I / F unit for accommodating the slave units 2 (2 </ b> A to 2 </ b> N) via the internal line transmission line 3, and 14 is an external line I. / F unit 12 and exchange I / F unit 13 are exchange processing units, 15 is a main control unit that controls the entire apparatus, and 16 is a main unit that stores various control information necessary for control by main control unit 15 A storage unit, 17 is an information receiving unit that receives various information transmitted from the network side via the telephone line 11, and 18 is an end-of-call detection that detects the other party's end call by a busy tone (BT sound) from the telephone line 11. Reference numeral 19 denotes a sound source that outputs a holding sound or the like.
[0010]
The subunit | mobile_unit 2 (2A-2N) has comprised the substantially same structure, 21 is a transmission I / F part which performs data transmission with the main apparatus 1 via the extension line 3, and 22 is a transmission I / F part 21 A speech circuit that decodes the voice data received in step S1 to a voice signal and outputs the voice signal from a handset or a speaker (not shown); encodes voice input from the handset into voice data and outputs the voice data to the transmission I / F unit 21; 23 is a slave unit control unit that controls each unit of the slave unit 2, 24 is an operation input unit that detects operation of various keys such as a hook switch and dial keys, 25 is a display unit that displays various information in characters and symbols, 26 Is a memory for storing control information used for processing of the handset controller 23.
[0011]
In the main storage unit 16 of the main apparatus 1, individual incoming call information including correspondence relationships between each destination number and one or more handset numbers is registered. In the main control unit 15, when an information receiving unit 17 receives a destination number from the network when an incoming call or a call interruption is received, the corresponding slave unit is registered by referring to the individual incoming information in the main storage unit 16. Check if it is. Here, when the slave unit number is registered corresponding to the destination number, the incoming call display is performed only on the slave unit of the slave unit number by individual incoming call processing. If the corresponding handset number is not registered, incoming calls are displayed on all handset.
[0012]
Next, with reference to FIGS. 2 to 5, the operation of the present invention will be described by taking as an example the case where the incoming call during a call is an individual incoming call. FIG. 2 is a flowchart showing call interruption processing (individual incoming call) in the main control unit, and FIG. 3 is a flowchart showing interruption call end processing. 4 and 5 are explanatory diagrams showing call connection states at various points in the flowcharts of FIGS.
First, as shown in FIG. 4 (a), a partner X (4X) connected to the network 4 and a handset A (2A) are connected via a telephone line 11 and a main unit 1, and an external line call 41 Is assumed to have been performed. In this state, when an incoming call 42 is generated from the other party Y (4Y) connected to the network 4 to the telephone line 11, the network 4 is busy on the telephone line 11, so that a predetermined signal is sent to the telephone line 11 To notify the incoming call during a call.
[0013]
In response to this, the main control unit 15 of the main apparatus 1 receives the destination number of the destination Y notified from the network 4 via the telephone line 11 by the information receiving unit 17, and performs the call interruption process of FIG. Start.
First, referring to the individual incoming information in the main storage unit 16, the corresponding slave unit number is acquired, and the incoming call is displayed only to the slave unit corresponding to the slave unit number, for example, the slave unit B (2B) (step 50). . At this time, the other party number may be displayed from the display unit 25 of the slave unit B.
[0014]
As a result, the slave unit B enters a calling state, and in response to a response from the slave unit B (step 51: YES), the main control unit 15 sends a call interrupt response to the slave unit A of the original call on the interrupted side. A standby notification sound indicating that it is waiting is output (step 52).
In response to this, the slave unit A can recognize that an interruption due to an individual incoming call has occurred by outputting a standby notification sound in the state of the external line call 41.
[0015]
Here, when a hold operation is performed in the handset A (step 53: YES), the main control unit 15 controls the exchange processing unit 14 to perform an outside line call on the telephone line 11 as shown in FIG. 41 is put on hold (step 54), and the extension call 43 is placed between handset A and handset B (step 55).
As a result, when the user of the handset A and the handset B has a discussion about the barge call, and the user of the handset A permits the temporary interruption of the external line call 41, the handset A first takes the extension call. Ends 43.
[0016]
In response to the end of the extension call 43 (step 56: YES), the main control unit 15 controls the external line I / F unit 12 to send a hooking signal to the telephone line 11 (step 57). 14 is connected to connect the handset B to the telephone line 11 (step 58).
In the network 4, the external line call 41 on the other party X side is put on hold in the network 4 in response to a hooking signal from the telephone line 11, and the other party Y side is switched and connected to the telephone line 11. Thereby, as shown in FIG.4 (c), the external line call 44 of the other party Y and the subunit | mobile_unit B is formed.
[0017]
Thereafter, when the handset B ends the external line call 44 (step 59: YES), the main control unit 15 performs an interrupt call end process shown in FIG. 3 (step 60).
In the interrupt call termination process of FIG. 3, first, the outside line I / F unit 12 is controlled to send a hooking signal to the telephone line 11 (step 70 / recapture means). In response to this, the network 4 releases the hold of the other party X and switches and connects the telephone line 11 from the other party Y to the other party X as shown in FIG. Next, the main control unit 15 checks whether or not the other party X has already ended the call based on the BT sound from the telephone line 11 in the end call detection unit 18 (step 71 / end call detection means).
[0018]
Here, when it is determined that the BT tone is not detected and the other party X is still in a call state (step 71: NO), a holding tone, a ringing tone or a voice message indicating that the handset A is being called again is displayed. Then, the sound source 19 sends the signal to the telephone line 11 via the exchange processing unit 14 and the external line I / F unit 12 to place the telephone line 11 on hold (step 72 / holding means). At the same time, the main control unit 15 makes a call 45 to the stored child device A of the original call (step 73 / interrupt end notification means) and notifies the user of the child device A that the interrupt call 44 has ended. Notice.
[0019]
If the handset A responds to this call 45 (step 74: YES), the sending of the hold sound to the telephone line 11 is stopped and the hold is released (step 75), and the exchange processing unit 14 is controlled. The telephone line 11 and the handset A are connected (step 76 / call re-forming unit), and the process returns to FIG.
Thereby, as shown in FIG.5 (b), the original outside line call 41 by the other party X and the subunit | mobile_unit A is reformed.
[0020]
As described above, since the original handset A is called in response to the end of the interruption side external call 44, the user of the handset B has finished the interrupt call to the user of the handset A. This eliminates the need for the user of the slave unit B to notify the user of the slave unit B by verbal or extension call, and greatly reduces the labor and operation burden at the end of the interrupt call for the user of the slave unit B, and links with the termination of the interrupt call Thus, the end of the interrupt call can be notified to the handset A, and the transition from the end of the interrupt call to the re-formation of the original call can be made smoothly. Further, the user of the slave unit A does not need to wait until the interrupt call of the slave unit B is completed, and can effectively use the time between them.
[0021]
Furthermore, since the original external line call 41 between the destination X and the slave unit A is reconfigured in response to a response operation to the call of the slave unit A, for example, an extension call from the slave unit B is performed as in the prior art. In response to, the end of the interrupt call is confirmed, and after the extension call is ended, it is no longer necessary to perform a complicated operation such as re-capturing the telephone line 11 on the slave unit A. And can recreate the original call smoothly.
[0022]
In step 74, when there is no response from handset A (step 74: NO) and the ending tone detection unit 18 detects the BT sound from the telephone line 11 and detects the end of the destination X (step 80: (YES / end call detection means), stop calling the handset A (step 81 / interrupt end notification means), control the exchange processing unit 14 to release the telephone line 11, and perform the end call processing of the external line call 41 (Step 82), a series of call interruption processing ends.
In this way, when the end of the other party X is detected earlier than the response of the slave unit A, the calling of the slave unit A is stopped. Re-formation of the external line call 41 can be avoided.
[0023]
Before calling the handset A in response to the detection of the end of the interrupted call, in step 71, when the BT sound from the telephone line 11 is detected by the end detection unit 18 and the end of the destination X is detected (Step 71: YES), the process proceeds to Step 81.
Thus, before calling the handset A, it is detected whether or not the other party X has already ended the call, and it is determined whether or not the call to the handset A is necessary according to the end call detection result. Therefore, it is possible to reliably avoid the re-creation of the invalid external line call 41 due to the end of the call from the destination X side.
[0024]
If the end of the destination X is not detected in step 74, a hold tone, ringing tone or voice message indicating that handset A is being called again is sent to telephone line 11 in step 72. As a result, it is possible to notify the other party X that has been released from the hold in the network 4 according to the hooking signal sent in step 70 that the handset A is being called again.
[0025]
In the extension call state of the slave unit A and the slave unit B formed in step 55 of FIG. 2, when the slave unit A does not end the extension (step 56: NO), and the slave unit B ends the extension first ( Step 61: YES: determination means), without shifting to the interrupted call, the original outside line call 41 is maintained (call interruption means), and the series of call interruption processing ends. In this case, in the network 4, the destination Y is kept in the calling state, and the incoming call is again made to the telephone line 11 in response to the subsequent end of the external line call 41.
[0026]
In the state where the sending of the standby notification sound to the slave unit A is started in step 52, if the slave unit A does not perform the hold operation (step 53: NO) and performs the hooking operation (step 62: YES: determination means) ), It may be determined that the user of the handset A has permitted the temporary interruption of the outside line call 41, that is, the interruption call, and the process may proceed to step 57.
If handset A does not perform the hooking operation (step 62: NO) and the external call 41 is terminated (step 63: YES), after handset B is busy (step 64), The exchange processing unit 14 is controlled to release the telephone line 11, perform an end call process for the external line call 41 (step 65), and end a series of call interruption processes.
[0027]
In step 51, if the handset B does not respond to the individual incoming call (step 51: NO) and the handset A has finished the outside line call 41 (step 66: YES), the individual incoming call to the handset B is received. May be stopped (step 67) and the process may proceed to step 73.
As a result, the network 4 keeps the destination Y in the calling state and makes another incoming call to the telephone line 11.
[0028]
In the above, the case where the interrupted incoming call is an individual incoming call has been described as an example. However, the present invention is not limited to this, and the incoming call interrupted during a call is a normal incoming call not associated with a specific slave unit. The present invention can also be applied to the above, and the same effects as described above can be obtained.
FIG. 6 shows another processing operation up to the transition to the interrupt call.
When a call interruption incoming call is a normal call that is not associated with a specific child device, the call interruption incoming call is not displayed on the other child device, but only to the child device A that is talking on the telephone line 11. Be notified.
[0029]
First, as shown in FIG. 4 (a), when an incoming call during a call is detected while the other party X and the handset A are making an external line call 41 (step 100), The destination number is received by the information receiving unit 17. In handset A, the other party is switched in response to a busy interrupt incoming call display such as a busy interrupt ringing tone from network 4 or a display of the other party number from main apparatus 1 (step 101). As a result, a hooking signal is sent to the telephone line 11, and the network 4 is switched to the partner Y, and an external line call with the handset A is started (step 102).
[0030]
By this outside line call, the user of the handset A confirms the call partner from the destination Y and performs an external line transfer operation to the handset of the call partner, for example, the handset B. Here, the telephone line 11 is put on hold (step 103), an extension call is made from the slave unit A to the slave unit B (step 104), and an extension call is performed in response to the slave unit B (step 105).
In this extension call, the user of the slave unit B is informed that the incoming call is interrupted from the destination Y, and the slave unit A ends the extension call (step 106). The handset B captures the telephone line 11 that is on hold (step 107) and starts an interrupt call with the partner Y (step 108). Then, in response to the end of the interrupt call at the slave unit B (step 109), the process proceeds to the interrupt call end process of FIG. 6 (step 110).
[0031]
If the other party number is displayed from the other party number displayed at the time of a call interruption, the outside line call between the other party Y and the slave unit A is omitted, and the call is made to the slave unit of the call partner, for example, the slave unit B. The middle interrupt incoming call may be transferred outside the line. In this case, instead of steps 101 to 105, operations of steps 120 to 123 are performed. That is, when a call interruption incoming call is detected, an extension button is operated on the slave A to call the extension on the slave B (step 120).
[0032]
In response to this, the main control unit 15 sends a hooking signal to the telephone line 11 (step 121), puts the telephone line 11 on hold (step 122), and makes an extension call in response to the slave unit B (step 123). .
As described above, the present invention can also be applied to the case where the interrupted incoming call during a call is a normal incoming call that is not associated with a specific slave unit, and the same effects as described above can be obtained.
[0033]
【The invention's effect】
As described above, according to the present invention, when a call interrupting call is received on a telephone line during a call, the call by the first handset using the telephone line is temporarily interrupted, and another call using the telephone line is performed. In the button telephone device that forms the interrupt call by the second handset, the end of the interrupt call is notified by calling the first handset in response to the end of the interrupt call. It is no longer necessary for the user of the second handset to notify the end of the call by verbal or extension call, and the labor and operation burden at the end of the interrupt call for the user of the second handset can be greatly reduced. In cooperation with the end of the interrupt call, the end of the interrupt call can be notified to the first slave unit, and the transition from the end of the interrupt call to the re-formation of the original call can be made smoothly.
[Brief description of the drawings]
FIG. 1 is a block diagram of a button telephone apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart showing a call interruption process.
FIG. 3 is a flowchart showing interrupt call termination processing.
FIG. 4 is an explanatory diagram showing a call connection state at each point of call interruption processing;
FIG. 5 is an explanatory diagram illustrating a call connection state at each time point in an interrupted call end process.
FIG. 6 is a flowchart showing another processing operation up to the transition to the interrupted call.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Main apparatus, 2,2A-2N ... Slave unit, 11 ... Telephone line, 12 ... Outer line I / F part, 13 ... Extension I / F part, 14 ... Exchange processing part, 15 ... Main control part, 16 ... Main Storage unit, 17 ... Information receiving unit, 18 ... End of call detection unit, 19 ... Sound source, 21 ... Transmission I / F unit, 22 ... Call circuit, 23 ... Slave unit control unit, 24 ... Operation input unit, 25 ... Display unit , 26 ... memory, 3 ... extension transmission path, 4 ... network, 4X ... partner X, 4Y ... partner Y, 41 ... external line call (interrupted side), 42 ... incoming call (interrupt side), 43 ... extension call, 44 ... outside line call (interrupt side), 45 ... call.

Claims (5)

When there is a call interruption during a call to a telephone line during a call, the call by the first slave unit using the telephone line is temporarily interrupted, and an interrupt call by another second slave unit using the telephone line is made. In the button telephone device to be formed,
A button telephone device comprising: an interruption end notification means for notifying the end of the interruption call by calling the first handset in response to the end of the interruption call. The button telephone apparatus according to claim 1,
Re-capturing means for transmitting a hooking signal to the telephone line and re-capturing the communication partner of the first slave unit in response to the end of the interrupted call;
An end-of-call detecting means for detecting whether or not the re-captured call destination has ended,
The button telephone apparatus according to claim 1, wherein the interruption end notification means determines whether or not a call to the first handset is necessary according to a call end detection result of the communication partner by the call end detection means. The button telephone apparatus according to claim 1,
Re-capturing means for transmitting a hooking signal to the telephone line and re-capturing the communication partner of the first slave unit in response to the end of the interrupted call;
An end-of-call detecting means for detecting whether or not the re-captured call destination has ended,
And further comprising a holding means for sending a voice signal consisting of a sound or a voice message to the telephone line to place the telephone line in a holding state when the end of the call partner is not detected by the end-call detecting means. Key phone device characterized by. The button telephone apparatus according to claim 1,
Re-capturing means for transmitting a hooking signal to the telephone line and re-capturing the communication partner of the first slave unit in response to the end of the interrupted call;
An end-of-call detecting means for detecting whether or not the re-captured call destination has ended,
The button telephone apparatus characterized in that the interruption end notification means stops the call when the end of the other party of call is detected by the end of call detecting means while the first handset is being called. . The button telephone apparatus according to claim 1,
When the first slave unit responds to the call by the interruption end notification unit, the call unit further comprises a call reforming unit that reforms the original call by the first slave unit using the telephone line. A button telephone device.

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