JPS6245738B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a telephone transfer device for three-party calls.

(Prior Art) Conventionally, devices for automatically transferring telephone calls are generally commercially available as telephone transfer devices. The outline of the known telephone transfer device will be explained with reference to FIG.
is an office equipped with a forwarding device, B is a branch office, C is a calling telephone, D is an incoming telephone in the office A, E is the calling telephone, F is a branch office in B. Transfer destination phone, G is the receiving phone D from calling phone C
, H is a telephone transfer device connected to incoming telephone D and outgoing telephone E, I is a telephone line from originating telephone E to forwarding telephone F, and the person is away from office A. When I went on a business trip to branch office B,
When a call is made to office A from telephone C, the call is automatically transferred to office B by a telephone transfer device.

(Problem to be solved by the invention) As mentioned above, in the known method, a call received from office A can be automatically forwarded to office B, but when there is a person in office A, Being able to make three-party calls, including the office, can make subsequent work much smoother.

(Means for Solving the Problem) Therefore, the present invention provides an incoming telephone set 4a connected to a telephone line 8a, an outgoing telephone set 5a connected to a telephone line 10a, and a calling telephone set 3a connected to the incoming telephone set 4a.
When a call is received from a caller, the calling telephone 5a is connected to the forwarding destination telephone 6 of the branch office 2, and the calling telephone 3a and the forwarding destination telephone 6 are directly connected to each other so that a call can be made. The configuration of a telephone transfer device for three-party calls consists of a telephone transmitter 7a, an alarm 33 connected to the telephone transfer device 7a, and a signal transmitter 30 for activating the alarm 33 connected to the transfer destination telephone 6. That is.

(Example) To explain an example of the present invention with drawings, the first example is as follows.
In the figure, 1a is an office in Yokohama, 1b is an office in Urawa, 1n is an office in Chiba, 2 is a branch office in Tokyo, 3a, 3b - 3n are telephones for unspecified number of calls, 4a, 4b - 4n is office 1a, 1b~1n
Incoming telephone sets, 5a, respectively installed in
5b to 5n are the calling telephones, 6 is the forwarding destination telephone of the branch office 2, and 7a, 7b to 7n are the receiving telephones 4.
a, 4b to 4n and each telephone transfer device connected to the calling telephone set 5a, 5b to 5n; 8a, 8b to 8n is a telephone line from the telephone office 9 to the receiving telephone set 4a, 4b to 4n; 10a, 10b to Reference numeral 10n denotes a telephone line from the telephone office 11 to each of the calling telephones 5a, 5b to 5n, and the configuration up to this point is the same as that of the known example.

Therefore, the present invention provides the above-mentioned known telephone transfer device 7.
A, 7b to 7n are connected to transfer source code transmitters 12a, 12b to 12n, respectively, and a transfer source code decoder 13 is connected to the transfer destination telephone 6. The transfer source code transmitters 12a, 12b~
12n indicates each telephone transmitter 7a, 7b when the telephone transmitters 7a, 7b to 7n operate and transfer operation is performed.
Transfer source code signals S1, S2 set to ~7n~
The transfer source code decoder 13 analyzes the input transfer source code signals S1, S2 to Sn to determine which telephone transfer device 7a, 7b to 7n the phone was transferred from. This is to determine whether the

The details of the telephone transfer devices 7a, 7b to 7n, the transfer source code transmitters 12a, 12b to 12n, and the transfer source code decoder 13 will be explained with reference to the block diagram of the office 1a in FIG. A bell relay 15 is activated when a call is received to the calling telephone 5a, and 16 is an electrical connection between the receiving telephone 4a and the calling telephone 5a through an amplifier (not shown). The first coil 17 and the second coil 1 connected to
8, a dial pulse sending device 19 connected between the bell relay 14 and the first coil 17, and 20 a dial pulse sending device connected between the bell relay 15 and the second coil 1.
Dial pulse sending device connected between 8 and 21a
14a is a communication circuit switch operated by a relay 21 which will be described later; 14a is a communication circuit switch operated by the bell relay 14; 22 is a communication state detection device connected in series with the dial pulse sending device 19; 23 is the dial pulse sending device 20. This is a call status detection device connected in series with the

A relay switch 15a operated by the bell relay 15 is connected to the dial pulse sending device 19, and a changeover switch 24 is connected to the relay switch 15a. Similarly, the dial pulse sending device 20 includes the bell relay 14.
Connect the relay switch 14b operated by
A changeover switch 25 is connected to the relay switch 14b. The changeover switches 24 and 25 are respectively provided with dial pulse side terminals 24a and 25a and touch tone side terminals 24b and 25b, and are manually switched depending on whether the calling telephone 5a is a dial telephone or a touch tone telephone. . The changeover switches 24 and 25 are connected to a memory 26. The memory 26 stores the telephone number of the transfer destination telephone 6 which is the transfer destination. This stored content can be changed as appropriate according to a change in the telephone number of the transfer destination telephone 6 and a change in the transfer destination.

A relay switch 15b operated by the bell relay 15 is connected to the touch tone side terminal 24b of the changeover switch 24.
Relay switches 14c operated by the bell relay 14 are connected to the touch tone terminals 25b of the bell relays 14, respectively. A touch tone transmitter 2 is connected to the relay switch 15b and the relay switch 14c.
7 is connected so that the output of the touch tone transmitter 27 is sent to the calling telephone 5a side or the receiving telephone 4a side.

A relay switch 22a operated by the call state detection device 22 and a relay switch 23a operated by the call state detection device 23 are connected to the touch tone transmitter 27, and the relay switch 22a and the relay switch 23a are connected to the transfer source. Connect the code transmitter 12a. The transfer source code transmitter 12a sends, for example, a two-digit transfer source code signal S1 preset for the telephone transfer device 7a to the transfer destination telephone device 6, and is connected to the other telephone transfer devices 7b to 7n. All different codes are provided, including the respective source code signals S2-Sn for the source code transmitters 12b-12n. 28 is a code adding device that adds an absence reason notification code signal R1 to the transfer source code signals S1, S2 to Sn transmitted by the transfer source code transmitter 12a. The code adding device 28 registers a plurality of preset one-digit reasons for absence, such as a... business trip, b... lunch break, c... meal, d... visitor, e... in a meeting, f... restroom, etc. Corresponding operation piece a,
If b, c, .

When the transmission of the reason for absence notification code signal R1 is completed, an end code signal (not shown) is transmitted.
The relay 21 operates the telephone call circuit switch 21a by transmitting the end code signal, and is connected to the code adding device 28. Note that the transfer source code and code signal are not limited to 22 digits or 1 digit, and can be changed as appropriate.

The transfer destination telephone 6 is connected to the transfer source code decoder 13 and the display 29, and the transfer source code signals S1, S2 to Sn transmitted from the transfer source code transmitter 12a are transmitted through a conventionally known conversion circuit to the display. The signal is sent to the device 29. The display 29 is provided with display lamps A, B, C, ...N corresponding to the telephone transfer devices 7a, 7b to 7n, that is, the transfer source code signals S1, S2 to Sn, respectively. Which phone transfer device 7 is selected on the transfer destination phone device 6 side?
It is possible to check at a glance whether it has been transferred from a, 7b to 7n. Also, the code signal R1 transmitted by the code adding device 28 is sent to the display 29 in the same manner as described above, and the lighting of the display lamps a, b, c,...n provided on the display 29 indicates why the code signal R1 was transferred. can be checked at the same time.

Therefore, when the calling telephone 3a and the transferring telephone 6 are connected to the transfer destination telephone 6 so that they can communicate with each other, the person in the office 1a is not able to receive the call from the incoming telephone 4a or the calling telephone 5a. A callback signal transmitter 30 is connected which sends a command signal to pick up the handset, a transformer 31 is combined with the transformer 16 of the telephone transfer device 7a, and a switch 32 is connected to the transformer 31.
An annunciator 33 configured with a buzzer or the like is connected through the switch 3 of the call-back signal transmitter 30.
4 is pressed, a callback signal Y is sent via the telephone line 10a, and the transformer 16 sends a callback signal Y to the transformer 3.
1 and the alarm 33 via the switch 32, a buzzer or the like sounds to instruct the person in the office 1a to pick up the handset of the incoming telephone 4a or the outgoing telephone 5a.

(effect) Next, the action will be described.

For example, from the calling telephone 3a to the receiving telephone 4a of Yokohama.
When there is a call, the bell relay 14 detects this and turns on the call circuit switch 14a, holds the telephone line 10a of the calling telephone 5a dialable, turns on the relay switches 14b and 14c, and stores the memory. The telephone number of the forwarding destination telephone 6 stored in 26 is transferred to the dial pulse sending device 20 or the touch tone transmitter 2 via the changeover switch 25, which is switched in advance depending on whether the calling telephone 5a is a dial type or a touch tone type.
7, calls the transfer destination telephone 6 via the telephone line 10a, and calls the calling telephone 5a and the transfer destination telephone 6.
Connect to enable calls.

When the call state detection device 23 detects this connection, the relay switch 23a is turned on, and the transfer source code transmitter 12a sends a predetermined transfer source code signal S1 to the touch tone transmitter 27, which outputs it as a touch tone signal. Outgoing telephone 5a
from the telephone line 10a to the forwarding destination telephone 6. The sent forwarding source code signal S1 is sent to the forwarding source code decoder 1 connected to the forwarding destination telephone 6 side.
3, and the display lamp A corresponding to "Yokohama" on the display 29 is turned on. In addition, when "c" (mealing) among the operation pieces a, b, c, ...n of the code adding device 28 is operated, it corresponds to c (mealing) of the reason for absence notification code signal R1. The display lamp c of the display 29 lights up, and the transfer destination telephone 6 can confirm that the transfer call is from the office 1a and that the reason for the transfer is "during a meal." When the transmission of the reason for absence notification code signal R1 is completed, the termination code signal is activated, and this termination code signal causes the relay to
1 is activated to turn on the telephone call circuit switch 21a, thereby connecting the calling telephone set 3a and the transfer destination telephone set 6 so that a telephone call can be made.

Therefore, when the calling telephone set 3a and the transfer destination telephone set 6 are connected to enable mutual communication, when the person at the head office 2 wants the person at the office 1a to participate in the call, Press the switch 34 of the return signal transmitter 30. Then, telephone line 10
A call-back signal Y is sent via a, and transformer 1
A callback signal Y is input from 6 to the alarm 33 via the transformer 31 and switch 32, and a buzzer or the like sounds to signal the person in the office 1a to pick up the handset of the incoming telephone 4a or the calling telephone 5a. Then, a conversation can be made between the calling telephone 3a, the transfer destination telephone 6, and the receiving telephone 4a or the calling telephone 5a.

(Effects) As described above, conventional devices for automatically transferring calls are generally commercially available as call transfer devices. The outline of the known telephone transfer device will be explained with reference to FIG. 3, where A is an office equipped with the transfer device, B is a branch office, C is a calling telephone, and D is an incoming telephone in the office A. , E is the same calling phone, F is the transfer destination phone in the branch office B, G is the calling phone C
telephone line from to the receiving telephone set D, H is the telephone transfer device connected to the receiving telephone set D and the calling telephone set E, I
is the telephone line from the originating telephone E to the forwarding telephone F. If you are away from office A and go on a business trip to office B, when you call office A from call telephone C, the telephone line will be connected to the forwarding telephone. Automatically transfers to branch office B
I am trying to have it transferred to. However, as mentioned above, in the publicly known method, calls to office A can be automatically forwarded to branch office B, but when there are people in office A, there are three cases including the office. Being able to make phone calls to others can make subsequent work much smoother.

However, the present invention provides an incoming telephone set 4a connected to the telephone line 8a, an outgoing telephone set 5a connected to the telephone line 10a, and when the incoming telephone set 4a is called from the calling telephone set 3a, the outgoing telephone set 4a is connected to the telephone line 8a. Vessel 5
a telephone transfer device 7a that connects to the transfer destination telephone 6 of the outpost office 2 through the telephone transfer device 7a to enable direct communication between the call telephone device 3a and the transfer destination telephone device 6; The telephone transfer device for three-party calls consists of an alarm 33 connected to the transfer destination telephone 6, and a signal transmitter 30 for activating the alarm 33, which is connected to the transfer destination telephone 6. When the person at the head office 2 wants to have the person at the office 1a participate in the call when the transfer destination phone 6 and the transfer destination phone 6 are connected to enable mutual communication, the call-back signal transmitter 3 is used.
0 switch 34 is pressed. Then, a call-back signal Y is sent out via the telephone line 10a, and the call-back signal Y is input from the transformer 16 to the alarm 33 via the transformer 31 and switch 32, and a buzzer etc. sounds to call the person in the office 1a. A signal is given to the person to pick up the handset of the incoming telephone set 4a or the calling telephone set 5a, and a three-way conversation between the calling telephone set 3a, the transfer destination telephone set 6, and the receiving telephone set 4a or the calling telephone set 5a is then possible. do.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the outline of the present invention, Figure 2 is a block diagram showing the outline of the present invention.
The figure is a schematic circuit diagram of the main part of the present invention, and FIG. 3 is a diagram of a known example. Explanation of codes, 1a...Yokohama office, 1b...
Urawa office, 1n...Chiba office, 2...Outside office, 3a-3n...Call phone, 4a-4n
...Incoming telephone set, 5a-5n...Outgoing telephone set, 6
...Transfer destination phone, 7a-7n...Telephone transfer device,
8a-8n...telephone line, 9...telephone office, 10a
~10n...Telephone line, 11...Telephone office, 12a
~12n...Transfer source code transmitter, 13...Transfer source code decoder, 14...Bell relay, 14
a... Call circuit switch, 14b, 14c... Relay switch, 15... Bell relay, 15a, 1
5b...Relay switch, 16...Transformer, 17
...First coil, 18...Second coil, 19,2
0...Dial pulse sending device, 21...Relay, 21a...Talking circuit switch, 22...Talking state detection device, 22a...Relay switch, 23
... Call status detection device, 23a ... Relay switch, 24 ... Changeover switch, 24a ... Dial pulse side terminal, 24b ... Touch tone side terminal,
25...Selector switch, 25a...Dial pulse side terminal, 25b...Tatsutone side terminal, 26
...Memory, 27...Tatsuchi tone transmitter, 2
8... Code addition device, 29... Display device, A...
Office, B... Branch office, C... Call telephone, D
...Incoming telephone, E...Outgoing telephone, F...Forwarding telephone, G...Telephone line, H...Telephone transfer device,
I...Telephone line, S1-Sn...Transfer source code signal, R1...Reason for absence notification code signal.

Claims (1)

[Claims] 1. An incoming telephone set 4a connected to the telephone line 8a,
When a call is placed from the calling telephone 3a to the calling telephone 5a connected to the telephone line 10a and the receiving telephone 4a, the calling telephone 5a is connected to the forwarding destination telephone 6 of the outpost office 2 via the calling telephone 5a. the telephone set 3
A telephone transfer device 7a that connects A and the transfer destination telephone 6 to enable direct communication, an alarm 33 connected to the telephone transfer device 7a, and an alarm 33 for operation connected to the transfer destination telephone 6. A telephone transfer device for three-party calls consisting of a signal transmitter 30.