JPH0626387B2 - Missed call processing method - Google Patents

Description

Description: (a) TECHNICAL FIELD OF THE INVENTION The present invention relates to an automatic exchange, and more particularly to a missed call processing method that enables a call received while a called party is absent to be connected by a simple operation.

(b) Background of technology As part of improving the serviceability of automatic exchanges, it is desirable that the caller who makes a call to a telephone that is absent can talk to the called party without making repeated calls. On the other hand, with the diversification of the functions of the telephones housed in the automatic exchange, the telephones can be connected to the automatic exchange by call lines and signal lines, respectively, and various types of control signals can be transmitted independently from the call signals via the signal lines. Multi-functional telephones are being used.

(c) Conventional Technology and Problems FIG. 1 is a diagram showing an example of a conventional missed call processing method. In FIG. 1, a response delay transfer mechanism DCS is provided in the management control device MPR that controls the connection of the automatic exchange. The response delay transfer mechanism DCS automatically receives an incoming call to another subscriber who has been registered in advance when a call arrives at a subscriber provided with the response delay transfer function and the call state elapses for a predetermined time. Forward. It is assumed that the subscriber A is given the response delay transfer function and the subscriber B is registered in advance as the transfer destination subscriber. That is, the main storage device M
In the transfer subscriber number registration unit (for example, Sa) corresponding to each subscriber (for example, A) to which the response delay transfer function in M is added, the telephone number of the transfer destination subscriber (for example, B) (for example, N)
b) is stored. In FIG. 1, when the subscriber C calls the subscriber A, the management control device MPR identifies that the subscriber A is provided with the response delay transfer function, and responds to the subscriber A for a predetermined time. A ringing signal is sent to the telephone set Ta and a ringing tone is sent back from the ringing tone sending circuit RBT to the telephone set Tc corresponding to the subscriber C. When a predetermined time elapses in this state, the central control device CC activates the response delay transfer mechanism DCS. The response delay transfer mechanism DCS uses the main memory MM corresponding to the calling subscriber A.
The telephone number Nb stored in the transfer subscriber number registration section Sa in the above is extracted, and a calling signal is started to be transmitted to the telephone Tb.
The sending of the calling signal to the telephone set Ta is stopped.

As is apparent from the above description, in the conventional missed call processing method, after the subscriber A, which has been provided with the response delay transfer function in advance, receives a call during absence, after sending a ringing signal for a predetermined time. , Subscriber B automatically pre-registered
Forward incoming calls to. However, if the subscriber B is busy or absent at the time when the incoming call is transferred, the subscriber C needs to call the subscriber A again.

(d) Object of the invention The object of the present invention is to eliminate the above-mentioned drawbacks of the conventional missed call processing method, and to make a caller who calls a subscriber who is absent, in any case, makes a call again. It is to realize a means for enabling a call to a called subscriber without repairing.

(e) Structure of the invention According to the present invention, according to the present invention, in a structure in which a multi-function telephone having a call line and a signal line independently is connected to an automatic exchange and a management control device through a subscriber circuit, a call origination is added. Person A
The subscriber A presses the function button K ₁ of the multi-function telephone when the telephone number of the called subscriber B is transmitted by the call control and the ring tone is transmitted to the subscriber B under the control of the management control device and there is no response. The registration control signal ACU activates the missed call registration mechanism ACR in the management control device, registers the telephone number of the subscriber A in the incoming subscriber number registration section corresponding to the subscriber B in the main storage device, and the multifunction telephone of the subscriber B. Continuously illuminates the missed call indicator lamp of the subscriber circuit, returns a registration acceptance sound to the subscriber A, disconnects the connection path to the subscriber B, and the function button of the multifunctional telephone set by the subscriber B. operating missed call mechanism ACC management controller at call request signal by the operation of the K _2, a main storage device subscriber a number is extracted from, and sends a ringing signal to subscriber a, a subscriber B Call Return the sound management control device by response of subscriber A is achieved by missed call processing method, characterized by forming a connection path between the subscriber A and B.

That is, according to the present invention, when the called subscriber B is absent, the subscriber A's number is stored in the storage device only when the calling subscriber A presses the function button K _1. Has a small storage capacity. Also, since the missed call lamp of the absent subscriber B's multi-function telephone is continuously ignited from the subscriber's subscriber circuit, the subscriber B responds by pressing the function button K ₂ at any time during the continuation. However, this ignition control does not affect the connection between other subscribers.

Further, the registration signal and the call request signal are transmitted by the function buttons K ₁ and K.
The operation of ₂ is enough.

(f) Embodiment of the Invention An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing a missed call processing method according to an embodiment of the present invention. The same reference numerals denote the same objects throughout the drawings. In FIG. 2, the multifunction telephones MTa and M corresponding to the subscribers A and B accommodated in the automatic exchange are shown.
Tb is provided. Each multi-function telephone MT is provided with a function button K1 operated when sending a registration signal, a function button K2 operated when sending a call request signal, and a missed call display lamp L1. It is connected to the corresponding subscriber circuit LC 'by a communication line and a signal line, respectively. Further, a missed call registration mechanism ACR and a missed call calling mechanism ACC are provided in the management control device MPR ', and a called subscriber number registration unit Ab corresponding to each subscriber is provided in the main memory device MM'. Is provided.
In FIG. 2, when the subscriber A calls the subscriber B, a calling signal is transmitted from the subscriber circuit LC 'to the multi-function telephone MTb via a signal line, and a ring tone is sent to the multi-function telephone MTa. The ringing tone is returned from the circuit RBT. In such a state, if the subscriber B does not respond forever, the subscriber A determines that the subscriber B is absent and operates the function button K1 of the multi-function telephone MTa. The multi-function telephone MTa operated by the function button K1 sends out a registration signal via the signal line. The registration signal is a subscriber circuit L corresponding to the subscriber A.
It is transmitted to the management control device MPR 'via C'and the subscriber control device LPR'. Upon receiving the registration signal, the management control device MPR 'activates the missed call registration mechanism ACR. The missed call registration mechanism ACR identifies that the subscriber A who is calling the subscriber B is requesting the registration of the missed call, and the called subscriber number registration unit corresponding to the subscriber B in the main memory MM '. The telephone number Na is stored in Ab, and the missed call display signal is transmitted to the multi-function telephone MTb via the subscriber control device LPR 'corresponding to the subscriber B, the subscriber circuit LC' and the signal line. The registration acceptance sound sending circuit SVT returns the registration acceptance sound to the multifunction telephone MTa. The multifunction telephone MTb that has received the missed call display signal ignites the missed call display lamp L1. Subscriber A, who hears the registration acceptance sound, restores the call to subscriber B. In such a state, the subscriber B returns, and when he / she notices that the missed call indicator lamp L1 is lit on the multifunction telephone MTb, he / she operates the function button K2. The multifunction telephone MTb operated by the function button K2 sends out a call request signal via the signal line. The call request signal is a subscriber circuit L corresponding to the subscriber B.
It is transmitted to the management control device MPR 'via C'and the subscriber control device LPR'. The management control device MPR 'that has received the call request signal activates the missed call calling mechanism ACC. The missed call calling mechanism ACC identifies that the subscriber B is calling for a caller who has arrived while he / she is absent, and the called subscriber number registration unit Ab corresponding to the subscriber B in the main storage device MM '. The telephone number Na is extracted from the telephone number Na and the call signal is transmitted to the multifunction telephone MTa through the subscriber control device LPR 'corresponding to the subscriber A, the subscriber circuit LC' and the signal line, and the missed call display lamp L1 is transmitted. Is blinked, and the ring back tone is sent back from the ring back tone sending circuit RBT to the multifunction telephone MTb. When the subscriber A responds, the management control device MPR 'connects the multifunction telephones MTa and MTb by a known method. As a result, the subscriber A can talk with the returned subscriber B.

As is clear from the above description, according to the present embodiment, the calling party A who has judged that the called party B is absent is the multifunction telephone MTa.
By operating the function button K1 of the above, the missed call display lamp L1 is lit on the multi-function telephone MTb, and the called subscriber number registration section Ab corresponding to the called party B in the main memory MM 'is issued. The telephone number Na of the caller A is registered. In this state, when the called party B who notices the ignition of the missed call indicator lamp L1 operates the function button K2, the calling party A is called and the called party B can talk.

It is to be noted that FIG. 2 is merely an embodiment of the present invention, and the function button K2 is not limited to being provided separately from the function button K1, and the use of the same function button is also considered. However, even in such a case, the effect of the present invention does not change. Further, the calling party and the called party are not limited to the subscribers A and B, respectively, and various modifications are considered, but in any case, the effect of the present invention does not change. Further, it goes without saying that the structure of the automatic exchange is not limited to that shown in the drawings.

(g) Effect of the Invention As described above, according to the present invention, in the automatic exchange, a calling party who calls a subscriber who is absent is called as a called subscriber without making a call again in any case. Calls can be made and the serviceability of the automatic exchange is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a conventional missed call processing method, and FIG. 2 is a diagram showing a missed call processing method according to an embodiment of the present invention. In the figure, A, B and C are subscribers, Ab is a called subscriber number registration unit, ACC is a missed call calling mechanism, ACR is a missed call registration mechanism, DCS is a response delay transfer mechanism, K1 and K2 are function buttons, L1. Is a missed call indicator lamp, LC
And LC 'are subscriber circuits, LPR and LPR' are subscriber controllers, MM and MM 'are main memories, MPR.
And MPR 'are management control devices, MTa and MTb are multifunction telephones, Na and Nb are telephone numbers, NW is a network, RBT is a ring back tone sending circuit, Sa is a transfer subscriber number registration unit, and SVT is a registration acceptance tone sending circuit. , Ta and Tb denote telephones.

Claims (1)

[Claims] 1. A subscriber who is called by a calling subscriber A in a structure in which a multi-function telephone having a call line and a signal line independently is connected to an automatic exchange and a management control device through a subscriber circuit. When the telephone number of B is transmitted and the ringing tone is transmitted to the subscriber B under the control of the management control device, and there is no response, the subscriber A performs management control by a registration signal by pressing the function button K ₁ of the multifunction telephone. Missed call registration mechanism A on the device
The CR is activated, the telephone number of the subscriber A is registered in the incoming subscriber number registration section corresponding to the subscriber B in the main memory, and the missed call display lamp of the multifunctional telephone of the subscriber B is continued from the subscriber circuit. Ignited, sent a registration acceptance sound back to subscriber A, and disconnected the connection path to subscriber B,
The missed call calling mechanism A of the management control device is sent by a call request signal by the operation of the function button K ₂ of the multi-function telephone by the subscriber B.
The CC operates, the number of the subscriber A is extracted from the main storage device, the calling signal is sent to the subscriber A, the ringing tone is sent back to the subscriber B, and the management control device responds by the subscriber A. A missed call processing method characterized by forming a connection path between subscribers A and B.