JPS59138157A - Bidirectional telephone transfer device - Google Patents

Abstract

PURPOSE:To transfer a call to a telephone set to which the call is to be transferred even if an exclusive outgoing telephone set is called by a calling telephone set by providing an incoming/outgoing switching device among an exclusive incoming telephone set, the exclusive outgoing telephone set and a telephone transfer device. CONSTITUTION:The exclusive incoming telephone set 4, the exclusive outgoing telephone set 5 and the telephone transfer device 6 are coupled to transfer a call to the telephone set 8 to which a call is to be transferred even if the outgoing telephone set 5 is called by the calling telephone set 1. A telephone call from the calling telephone set 1 to the telephone set 4 is transferred to the telephone set 8 by automatic dialing from telephone set 5 via the telephone transfer device 6. The incoming/outgoing switching device 12 switched by a calling signal is provided among the telephone set 4, the telephone set 5 and the telephone transfer device 6 so that the call is transferred to the telephone set 8 to be transferred even if the calling telephone set 1 calls the telephone set 5.

Description

[Detailed description of the invention] The present invention relates to a two-way telephone transfer device.

A device that automatically forwards incoming calls to the office phone when you are away from the office is already commercially available under the trade name of telephone forwarding device. .

Figure 1 shows an example of this.In the figure, 1 is a calling telephone, 2 is the telephone station to which the calling telephone 1 belongs, 3 is the central telephone office, 4 is an incoming telephone in the office, and 5 is the telephone in the same office. 6 is a forwarding unit installed in each terminal of the incoming phone 4 and the outgoing phone 5; 7 is the forwarding destination telephone office; 8 is the forwarding destination of the local Rin office. It's a telephone.

The psr diagram shows that when calling telephone 1 calls incoming telephone 4,
The incoming telephone 4 via the telephone station 2 and the central telephone station 3
is called. At this time, when the office is away, the transfer section 6 operates according to the known transfer theory, and the outgoing telephone 5 sends an automatic dial to the central telephone station 3, and the telephone station 7
The forwarding destination telephone 8 is called through the calling telephone 1 and the transferring destination telephone 8 is enabled to talk. °--This system is well known, and when both the incoming telephone 4 and the outgoing telephone 5 are Butshuphone telephones, the transfer is performed only from the incoming telephone 4 to the outgoing telephone 5. The reverse transfer from the calling telephone 5 to the receiving telephone 4 can also be made possible by adding a simple additional device.

That is, even if the calling telephone 5 is called by the calling telephone 1, the call can be transferred to the transfer destination telephone 8.

This means that when there are multiple public phone numbers, not only will the call be transferred to any phone, but more importantly, if you call either phone, the call will be transferred to the A area. The point is that you can select and change the forwarding destination, such that if you call either telephone, the call will be forwarded to the telephone number.

Therefore, the present invention has a telephone set for receiving and a telephone set for calling, and a call made from the calling telephone to the receiving telephone is transferred by automatic dialing from the calling telephone via a telephone transfer section. In the device configured to transfer the call to the destination telephone, the incoming telephone, the calling telephone, and the telephone transfer device can be transferred to the destination telephone even if the calling telephone is called by the calling telephone. It has a two-way telephone transfer device, which is coupled to a telephone receiver, and a telephone for incoming calls and a telephone for outgoing calls. In a device in which automatic dialing is used to transfer a call to a forwarding destination telephone, a call telephone is placed between the incoming telephone, the outgoing telephone, and the telephone transfer device to call the outgoing telephone with a calling telephone. This is a two-way telephone transfer device that is equipped with an incoming and outgoing switching device that switches in response to a ringing signal so that the transfer can be made to the destination telephone. In this example, as in the case of Fig. 1, 1 is a calling telephone, 2 is a telephone office, 3 is a central telephone office, 4 is a receiving telephone, 5 is a calling telephone, 6 is a transfer unit, and 7 is a telephone for calling. Telephone office, 8
is a transfer destination telephone, and a direction transfer device 9 is provided between the receiving telephone 4 and the originating telephone 5. The details of the bidirectional transfer device 9 are as shown in FIG.
1 is an incoming call detection section, 11 is an incoming call detection section, 12 is an incoming/outgoing switching device, 13 is a relay drive section, and a photocoupler 14 and an output stage transistor 15 are provided in the incoming call detection section IO. Reference numeral 16 denotes an input terminal 16 of the incoming call detecting section 10, and the incoming call is transferred to the incoming telephone 4. Thus, 17 is a photocoupler, 18 is an output stage transistor, and 19 is an input side terminal, and the input side terminal 19 is transferred to the calling telephone 5.

Next, 20 is an AND gate in the arrival/departure switching device 12;
1 is an AND gate in the arrival/departure switching device 12, 22 is a relay driver of the arrival/departure switching device 12, and 23 is a relay coil of the arrival/departure switching device 12. 24 is a calling telephone 5
25 is a visual display section that visually displays the incoming call transfer state or the outgoing call transfer state of the incoming telephone 4; and 25 visually displays the incoming call state of the outgoing telephone 5 or the reverse transfer state of the outgoing call by the incoming telephone 4. 26 is a light emitting diode 7 that visually displays the normal transfer status of incoming calls from the incoming phone 4 and outgoing calls from the outgoing phone 5; 27 is a connecting terminal connected to the incoming phone 4; 28 is an outgoing call. 29 is a terminal to be connected to the telephone set 5 for connection; 29 is a receiving side that is transferred to the receiving side of the transfer unit 6; 30
31.32 is the contact point 31.32 of the arrival/departure switching device operated by the relay coil 23.
It is 32.

33 is the managing office.

Next, we will discuss the effect.

When the output stage transistor 18 calls the incoming telephone 4,
A call is placed on the receiving telephone 4 via the telephone station 2 and the central telephone station 3. In this state, when the office 33 is away and the device is placed in the transfer state, the photocoupler 14 detects the bell signal and outputs a control signal to the output stage transistor 15. Then, the flip-flop composed of AND gate 20 and AND gate 21 is inverted, and AND gate 2
Output to 0. The relay driver 22 is turned on by the output of the AND gate 20, and a current is passed through the relay coil 23 to switch the contacts 31 and 32 in the arrival/departure switching device (the state indicated by the phantom line in FIG. 3). Then, the receiving party 29
A bell signal is transmitted to the transfer unit 6, and the transfer unit 6 sends the l-motion dial from the calling side 30 to the central telephone station 3, and calls the telephone station 7, according to the known transfer theory. Then the transfer destination phone 8
The call is transferred to the telephone line of , and the call telephone 1 and the transfer destination telephone 8 are able to talk.

If the call is terminated in this state, by hanging up the handset of the calling telephone set 1, a disconnection signal is received from the telephone station 2 and the central telephone office 3, and the transfer unit 6 returns to the initial state, but the two-way transfer device The contacts 31 and 32 of the arrival/departure switching device 12 of No. 9 remain as temporary lines.

Next, when a call is placed from the calling telephone 1 to the originating telephone 5, the call is made to the originating telephone 5 via the telephone station 2 and the central telephone office 3, and the photocoupler 17 detects a bell signal.
A control signal is output to the output stage transistor 18. Then, the flip-flop composed of AND gates 1, 20 and 21 is inverted and output to the AND gate 21. At the same time, the control signal is cut off to the relay driver 22, the current in the relay coil 23 is stopped, and the contacts 31 and 32 in the arrival/departure switching device 12 are switched to the position shown by the solid line. Then, a bell signal from the receiving side 29 is added, and the transfer section 6 transmits the automatic dialing from the calling side 30 to the central telephone office 3, and calls the telephone station 7, according to the known transfer theory. Then, the call is transferred to the telephone line of the forwarding destination telephone 8, and the output stage transistor 18 and the forwarding destination telephone 8 become capable of talking.

As mentioned above, there is a product called a telephone forwarding device that automatically forwards incoming calls to the office's forwarding destination phone when you are away from the office. In cases where the incoming telephone and the outgoing telephone are both Butshuphone telephones, which are already commercially available, it is not only possible to transfer data from the incoming telephone to the outgoing telephone, but also to transfer data from the incoming telephone to the outgoing telephone. Transfer from the originating telephone to the terminating telephone can also be made possible by adding a simple additional device. In other words, even if the calling telephone is used to call the calling telephone, the call can be transferred to the destination telephone. This means that when there are multiple public phone numbers, not only will the call be transferred to any phone, but more importantly, if you call either phone, the call will be transferred to the A area. The point is that you can select and change the forwarding destination, such that if you call either telephone, the call will be forwarded to the telephone number.

The present invention includes an incoming telephone 4 and an outgoing telephone 5,
In a device in which a call made from a calling telephone 1 to a receiving telephone 4 is transferred from a calling telephone 5 to a forwarding destination telephone 8 by automatic dialing via a telephone transfer unit 6, the receiving telephone 4, the calling telephone 5-, and a telephone transfer device are combined so that even if the calling telephone 5 is called by a calling telephone 1, the call can be transferred to the transfer destination telephone 8; 1 has an incoming telephone set 4 and an outgoing telephone set 5, and calls made from the calling telephone set L to the incoming telephone set 4 are automatically dialed from the outgoing telephone set 5 via a telephone transfer section 6. In the transfer destination telephone 8, between the incoming telephone 4, the outgoing telephone 5, and the telephone transfer machine, a calling telephone 1 is used to call the outgoing telephone 5. The above-mentioned object can be solved because the two-way telephone transfer device is configured with an incoming/outgoing switching device that switches in response to a calling signal so that the call can be transferred to the destination telephone 8.

[Brief explanation of drawings]

FIG. 1 is a known transfer block diagram, FIG. 2 is a block diagram of the present invention, FIG. 3.4 is a functional block diagram 1, and FIG. 5 is a main circuit diagram. Calling telephone set 1, telephone office 2, central telephone office 3, receiving telephone set 4
, outgoing telephone 5, transfer unit 6, telephone office 7, transfer destination telephone 8, two-way transfer device 9, incoming call detection unit lO1 incoming call detection unit t
t, ' Arrival/Departure switching device 12, relay drive unit 13, photocoupler 14, output stage transistor 15, input side terminal 16,
Photocoupler 17, output stage transistor 18, input side terminal 19, AND gate 20, AND gate 21, relay driver 22, relay coil 23, visual display section 24,
Light emitting diode 25, light emitting diode 26, connecting terminal 27, connecting terminal 28, receiving side 29, transmitting side 30,
Contact points 31, 32, office 33゜Patent applicant Kazuo Wakasugi, Commissioner of Japan Resco Patent Office 1. Indication of the case 1982 Patent Application No. 12504 2, Title of the invention: Two-way telephone transfer device 3, Person making the amendment Related to the case Patent applicant address: 6-7-23 Nishi-Shinjuku, Shinjuku-ku, Tokyo 160 Japan (1) Correct the drawings (Figures 1 to 5). Figure 1 Figure 2 Figure 3

Claims (2)

[Claims] (1) It has an incoming telephone and an outgoing telephone, and a call placed from the calling telephone to the incoming telephone is automatically dialed from the outgoing telephone via a telephone transfer unit to the forwarding destination telephone. In the telephone transfer device, the incoming telephone, the calling telephone, and the telephone transfer device are combined so that even if a calling telephone calls the calling telephone, the call is transferred to the forwarding destination telephone. Two-way telephone transfer device. (2) Equipped with an M-trust phone and a calling phone, calls made from the calling phone to the receiving phone are automatically dialed from the calling phone to the forwarding destination phone via the call transfer section. In the telephone transfer device, a call is provided between the incoming telephone, the calling telephone, and the telephone transfer device so that even if the calling telephone calls the calling telephone, the call is transferred to the forwarding destination telephone. A two-way telephone transfer device equipped with a signal-based switching device.